text: /*
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version 2
   * of the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
   */
  
  /** \file
   * \ingroup RNA
   */
  
  #include <float.h>
  #include <limits.h>
  #include <stdlib.h>
  
  #include "DNA_armature_types.h"
  #include "DNA_cachefile_types.h"
  #include "DNA_mesh_types.h"
  #include "DNA_gpencil_modifier_types.h"
  #include "DNA_object_types.h"
  #include "DNA_object_force_types.h"
  #include "DNA_scene_types.h"
  
  #include "MEM_guardedalloc.h"
  
  #include "BLI_math.h"
  
  #include "BLT_translation.h"
  
  #include "BKE_animsys.h"
  #include "BKE_data_transfer.h"
  #include "BKE_dynamicpaint.h"
  #include "BKE_effect.h"
  #include "BKE_mesh_mapping.h"
  #include "BKE_mesh_remap.h"
  #include "BKE_multires.h"
  #include "BKE_smoke.h" /* For smokeModifier_free & smokeModifier_createType */
  
  #include "RNA_access.h"
  #include "RNA_define.h"
  #include "RNA_enum_types.h"
  
  #include "rna_internal.h"
  
  #include "WM_api.h"
  #include "WM_types.h"
  
  const EnumPropertyItem rna_enum_object_greasepencil_modifier_type_items[] = {
      {0, "", 0, N_("Generate"), ""},
      {eGpencilModifierType_Array,
       "GP_ARRAY",
       ICON_MOD_ARRAY,
       "Array",
       "Create array of duplicate instances"},
      {eGpencilModifierType_Build,
       "GP_BUILD",
       ICON_MOD_BUILD,
       "Build",
       "Create duplication of strokes"},
      {eGpencilModifierType_Mirror,
       "GP_MIRROR",
       ICON_MOD_MIRROR,
       "Mirror",
       "Duplicate strokes like a mirror"},
      {eGpencilModifierType_Simplify,
       "GP_SIMPLIFY",
       ICON_MOD_SIMPLIFY,
       "Simplify",
       "Simplify stroke reducing number of points"},
      {eGpencilModifierType_Subdiv,
       "GP_SUBDIV",
       ICON_MOD_SUBSURF,
       "Subdivide",
       "Subdivide stroke adding more control points"},
      {0, "", 0, N_("Deform"), ""},
      {eGpencilModifierType_Armature,
       "GP_ARMATURE",
       ICON_MOD_ARMATURE,
       "Armature",
       "Deform stroke points using armature object"},
      {eGpencilModifierType_Hook,
       "GP_HOOK",
       ICON_HOOK,
       "Hook",
       "Deform stroke points using objects"},
      {eGpencilModifierType_Lattice,
       "GP_LATTICE",
       ICON_MOD_LATTICE,
       "Lattice",
       "Deform strokes using lattice"},
      {eGpencilModifierType_Noise, "GP_NOISE", ICON_MOD_NOISE, "Noise", "Add noise to strokes"},
      {eGpencilModifierType_Offset,
       "GP_OFFSET",
       ICON_MOD_OFFSET,
       "Offset",
       "Change stroke location, rotation or scale"},
      {eGpencilModifierType_Smooth, "GP_SMOOTH", ICON_MOD_SMOOTH, "Smooth", "Smooth stroke"},
      {eGpencilModifierType_Thick,
       "GP_THICK",
       ICON_MOD_THICKNESS,
       "Thickness",
       "Change stroke thickness"},
      {eGpencilModifierType_Time, "GP_TIME", ICON_MOD_TIME, "Time Offset", "Offset keyframes"},
      {0, "", 0, N_("Color"), ""},
      {eGpencilModifierType_Color,
       "GP_COLOR",
       ICON_MOD_HUE_SATURATION,
       "Hue/Saturation",
       "Apply changes to stroke colors"},
      {eGpencilModifierType_Opacity,
       "GP_OPACITY",
       ICON_MOD_OPACITY,
       "Opacity",
       "Opacity of the strokes"},
      {eGpencilModifierType_Tint, "GP_TINT", ICON_MOD_TINT, "Tint", "Tint strokes with new color"},
      {0, NULL, 0, NULL, NULL},
  };
  
  #ifndef RNA_RUNTIME
  static const EnumPropertyItem modifier_modify_color_items[] = {
      {GP_MODIFY_COLOR_BOTH, "BOTH", 0, "Both", "Modify fill and stroke colors"},
      {GP_MODIFY_COLOR_STROKE, "STROKE", 0, "Stroke", "Modify stroke color only"},
      {GP_MODIFY_COLOR_FILL, "FILL", 0, "Fill", "Modify fill color only"},
      {0, NULL, 0, NULL, NULL},
  };
  
  static const EnumPropertyItem modifier_gphook_falloff_items[] = {
      {eGPHook_Falloff_None, "NONE", 0, "No Falloff", ""},
      {eGPHook_Falloff_Curve, "CURVE", 0, "Curve", ""},
      {eGPHook_Falloff_Smooth, "SMOOTH", ICON_SMOOTHCURVE, "Smooth", ""},
      {eGPHook_Falloff_Sphere, "SPHERE", ICON_SPHERECURVE, "Sphere", ""},
      {eGPHook_Falloff_Root, "ROOT", ICON_ROOTCURVE, "Root", ""},
      {eGPHook_Falloff_InvSquare, "INVERSE_SQUARE", ICON_ROOTCURVE, "Inverse Square", ""},
      {eGPHook_Falloff_Sharp, "SHARP", ICON_SHARPCURVE, "Sharp", ""},
      {eGPHook_Falloff_Linear, "LINEAR", ICON_LINCURVE, "Linear", ""},
      {eGPHook_Falloff_Const, "CONSTANT", ICON_NOCURVE, "Constant", ""},
      {0, NULL, 0, NULL, NULL},
  };
  
  static const EnumPropertyItem rna_enum_time_mode_items[] = {
      {GP_TIME_MODE_NORMAL, "NORMAL", 0, "Regular", "Apply offset in usual animation direction"},
      {GP_TIME_MODE_REVERSE, "REVERSE", 0, "Reverse", "Apply offset in reverse animation direction"},
      {GP_TIME_MODE_FIX, "FIX", 0, "Fixed Frame", "Keep frame and do not change with time"},
      {0, NULL, 0, NULL, NULL},
  };
  
  #endif
  
  #ifdef RNA_RUNTIME
  
  #  include "DNA_particle_types.h"
  #  include "DNA_curve_types.h"
  #  include "DNA_smoke_types.h"
  
  #  include "BKE_cachefile.h"
  #  include "BKE_context.h"
  #  include "BKE_gpencil_modifier.h"
  #  include "BKE_object.h"
  #  include "BKE_gpencil.h"
  
  #  include "DEG_depsgraph.h"
  #  include "DEG_depsgraph_build.h"
  
  static StructRNA *rna_GpencilModifier_refine(struct PointerRNA *ptr)
  {
    GpencilModifierData *md = (GpencilModifierData *)ptr->data;
  
    switch ((GpencilModifierType)md->type) {
      case eGpencilModifierType_Noise:
        return &RNA_NoiseGpencilModifier;
      case eGpencilModifierType_Subdiv:
        return &RNA_SubdivGpencilModifier;
      case eGpencilModifierType_Simplify:
        return &RNA_SimplifyGpencilModifier;
      case eGpencilModifierType_Thick:
        return &RNA_ThickGpencilModifier;
      case eGpencilModifierType_Tint:
        return &RNA_TintGpencilModifier;
      case eGpencilModifierType_Time:
        return &RNA_TimeGpencilModifier;
      case eGpencilModifierType_Color:
        return &RNA_ColorGpencilModifier;
      case eGpencilModifierType_Array:
        return &RNA_ArrayGpencilModifier;
      case eGpencilModifierType_Build:
        return &RNA_BuildGpencilModifier;
      case eGpencilModifierType_Opacity:
        return &RNA_OpacityGpencilModifier;
      case eGpencilModifierType_Lattice:
        return &RNA_LatticeGpencilModifier;
      case eGpencilModifierType_Mirror:
        return &RNA_MirrorGpencilModifier;
      case eGpencilModifierType_Smooth:
        return &RNA_SmoothGpencilModifier;
      case eGpencilModifierType_Hook:
        return &RNA_HookGpencilModifier;
      case eGpencilModifierType_Offset:
        return &RNA_OffsetGpencilModifier;
      case eGpencilModifierType_Armature:
        return &RNA_ArmatureGpencilModifier;
        /* Default */
      case eGpencilModifierType_None:
      case NUM_GREASEPENCIL_MODIFIER_TYPES:
        return &RNA_GpencilModifier;
    }
  
    return &RNA_GpencilModifier;
  }
  
  static void rna_GpencilModifier_name_set(PointerRNA *ptr, const char *value)
  {
    GpencilModifierData *gmd = ptr->data;
    char oldname[sizeof(gmd->name)];
  
    /* make a copy of the old name first */
    BLI_strncpy(oldname, gmd->name, sizeof(gmd->name));
  
    /* copy the new name into the name slot */
    BLI_strncpy_utf8(gmd->name, value, sizeof(gmd->name));
  
    /* make sure the name is truly unique */
    if (ptr->id.data) {
      Object *ob = ptr->id.data;
      BKE_gpencil_modifier_unique_name(&ob->greasepencil_modifiers, gmd);
    }
  
    /* fix all the animation data which may link to this */
    BKE_animdata_fix_paths_rename_all(NULL, "grease_pencil_modifiers", oldname, gmd->name);
  }
  
  static char *rna_GpencilModifier_path(PointerRNA *ptr)
  {
    GpencilModifierData *gmd = ptr->data;
    char name_esc[sizeof(gmd->name) * 2];
  
    BLI_strescape(name_esc, gmd->name, sizeof(name_esc));
    return BLI_sprintfN("grease_pencil_modifiers[\"%s\"]", name_esc);
  }
  
  static void rna_GpencilModifier_update(Main *UNUSED(bmain), Scene *UNUSED(scene), PointerRNA *ptr)
  {
    DEG_id_tag_update(ptr->id.data, ID_RECALC_GEOMETRY);
    WM_main_add_notifier(NC_OBJECT | ND_MODIFIER, ptr->id.data);
  }
  
  static void rna_GpencilModifier_dependency_update(Main *bmain, Scene *scene, PointerRNA *ptr)
  {
    rna_GpencilModifier_update(bmain, scene, ptr);
    DEG_relations_tag_update(bmain);
  }
  
  /* Vertex Groups */
  
  #  define RNA_GP_MOD_VGROUP_NAME_SET(_type, _prop) \
      static void rna_##_type##GpencilModifier_##_prop##_set(PointerRNA *ptr, const char *value) \
      { \
        _type##GpencilModifierData *tmd = (_type##GpencilModifierData *)ptr->data; \
        rna_object_vgroup_name_set(ptr, value, tmd->_prop, sizeof(tmd->_prop)); \
      }
  
  RNA_GP_MOD_VGROUP_NAME_SET(Noise, vgname);
  RNA_GP_MOD_VGROUP_NAME_SET(Thick, vgname);
  RNA_GP_MOD_VGROUP_NAME_SET(Opacity, vgname);
  RNA_GP_MOD_VGROUP_NAME_SET(Lattice, vgname);
  RNA_GP_MOD_VGROUP_NAME_SET(Smooth, vgname);
  RNA_GP_MOD_VGROUP_NAME_SET(Hook, vgname);
  RNA_GP_MOD_VGROUP_NAME_SET(Offset, vgname);
  RNA_GP_MOD_VGROUP_NAME_SET(Armature, vgname);
  
  #  undef RNA_GP_MOD_VGROUP_NAME_SET
  
  /* Objects */
  
  static void greasepencil_modifier_object_set(Object *self,
                                               Object **ob_p,
                                               int type,
                                               PointerRNA value)
  {
    Object *ob = value.data;
  
    if (!self || ob != self) {
      if (!ob || type == OB_EMPTY || ob->type == type) {
        id_lib_extern((ID *)ob);
        *ob_p = ob;
      }
    }
  }
  
  #  define RNA_GP_MOD_OBJECT_SET(_type, _prop, _obtype) \
      static void rna_##_type##GpencilModifier_##_prop##_set(PointerRNA *ptr, PointerRNA value) \
      { \
        _type##GpencilModifierData *tmd = (_type##GpencilModifierData *)ptr->data; \
        greasepencil_modifier_object_set(ptr->id.data, &tmd->_prop, _obtype, value); \
      }
  
  RNA_GP_MOD_OBJECT_SET(Armature, object, OB_ARMATURE);
  RNA_GP_MOD_OBJECT_SET(Lattice, object, OB_LATTICE);
  RNA_GP_MOD_OBJECT_SET(Mirror, object, OB_EMPTY);
  
  #  undef RNA_GP_MOD_OBJECT_SET
  
  static void rna_HookGpencilModifier_object_set(PointerRNA *ptr, PointerRNA value)
  {
    HookGpencilModifierData *hmd = ptr->data;
    Object *ob = (Object *)value.data;
  
    hmd->object = ob;
    id_lib_extern((ID *)ob);
    BKE_object_modifier_gpencil_hook_reset(ob, hmd);
  }
  
  static void rna_TimeModifier_start_frame_set(PointerRNA *ptr, int value)
  {
    TimeGpencilModifierData *tmd = ptr->data;
    CLAMP(value, MINFRAME, MAXFRAME);
    tmd->sfra = value;
  
    if (tmd->sfra >= tmd->efra) {
      tmd->efra = MIN2(tmd->sfra, MAXFRAME);
    }
  }
  
  static void rna_TimeModifier_end_frame_set(PointerRNA *ptr, int value)
  {
    TimeGpencilModifierData *tmd = ptr->data;
    CLAMP(value, MINFRAME, MAXFRAME);
    tmd->efra = value;
  
    if (tmd->sfra >= tmd->efra) {
      tmd->sfra = MAX2(tmd->efra, MINFRAME);
    }
  }
  
  #else
  
  static void rna_def_modifier_gpencilnoise(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "NoiseGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Noise Modifier", "Noise effect modifier");
    RNA_def_struct_sdna(srna, "NoiseGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_NOISE);
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "vertex_group", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "vgname");
    RNA_def_property_ui_text(prop, "Vertex Group", "Vertex group name for modulating the deform");
    RNA_def_property_string_funcs(prop, NULL, NULL, "rna_NoiseGpencilModifier_vgname_set");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "factor", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "factor");
    RNA_def_property_range(prop, 0, 30.0);
    RNA_def_property_ui_text(prop, "Factor", "Amount of noise to apply");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "random", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_NOISE_USE_RANDOM);
    RNA_def_property_ui_text(prop, "Random", "Use random values");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_edit_position", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_NOISE_MOD_LOCATION);
    RNA_def_property_ui_text(
        prop, "Affect Position", "The modifier affects the position of the point");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_edit_strength", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_NOISE_MOD_STRENGTH);
    RNA_def_property_ui_text(
        prop, "Affect Strength", "The modifier affects the color strength of the point");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_edit_thickness", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_NOISE_MOD_THICKNESS);
    RNA_def_property_ui_text(
        prop, "Affect Thickness", "The modifier affects the thickness of the point");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_edit_uv", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_NOISE_MOD_UV);
    RNA_def_property_ui_text(
        prop, "Affect UV", "The modifier affects the UV rotation factor of the point");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "full_stroke", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_NOISE_FULL_STROKE);
    RNA_def_property_ui_text(
        prop, "Full Stroke", "The noise moves the stroke as a whole, not point by point");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "move_extreme", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_NOISE_MOVE_EXTREME);
    RNA_def_property_ui_text(prop, "Move Extremes", "The noise moves the stroke extreme points");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "step", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "step");
    RNA_def_property_range(prop, 1, 100);
    RNA_def_property_ui_text(
        prop, "Step", "Number of frames before recalculate random values again");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_NOISE_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_NOISE_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_vertex", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_NOISE_INVERT_VGROUP);
    RNA_def_property_ui_text(prop, "Inverse VertexGroup", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_NOISE_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencilsmooth(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "SmoothGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Smooth Modifier", "Smooth effect modifier");
    RNA_def_struct_sdna(srna, "SmoothGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_SMOOTH);
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "vertex_group", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "vgname");
    RNA_def_property_ui_text(prop, "Vertex Group", "Vertex group name for modulating the deform");
    RNA_def_property_string_funcs(prop, NULL, NULL, "rna_SmoothGpencilModifier_vgname_set");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "factor", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "factor");
    RNA_def_property_range(prop, 0, 2);
    RNA_def_property_ui_text(prop, "Factor", "Amount of smooth to apply");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_edit_position", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SMOOTH_MOD_LOCATION);
    RNA_def_property_ui_text(
        prop, "Affect Position", "The modifier affects the position of the point");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_edit_strength", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SMOOTH_MOD_STRENGTH);
    RNA_def_property_ui_text(
        prop, "Affect Strength", "The modifier affects the color strength of the point");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_edit_thickness", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SMOOTH_MOD_THICKNESS);
    RNA_def_property_ui_text(
        prop, "Affect Thickness", "The modifier affects the thickness of the point");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_edit_uv", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SMOOTH_MOD_UV);
    RNA_def_property_ui_text(
        prop, "Affect UV", "The modifier affects the UV rotation factor of the point");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "step", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "step");
    RNA_def_property_range(prop, 1, 10);
    RNA_def_property_ui_text(
        prop, "Step", "Number of times to apply smooth (high numbers can reduce fps)");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SMOOTH_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SMOOTH_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_vertex", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SMOOTH_INVERT_VGROUP);
    RNA_def_property_ui_text(prop, "Inverse VertexGroup", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SMOOTH_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencilsubdiv(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "SubdivGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Subdivision Modifier", "Subdivide Stroke modifier");
    RNA_def_struct_sdna(srna, "SubdivGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_SUBSURF);
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "level", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "level");
    RNA_def_property_range(prop, 0, 5);
    RNA_def_property_ui_text(prop, "Level", "Number of subdivisions");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "simple", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SUBDIV_SIMPLE);
    RNA_def_property_ui_text(prop, "Simple", "The modifier only add control points");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SUBDIV_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SUBDIV_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SUBDIV_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencilsimplify(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    static EnumPropertyItem prop_gpencil_simplify_mode_items[] = {
        {GP_SIMPLIFY_FIXED,
         "FIXED",
         ICON_IPO_CONSTANT,
         "Fixed",
         "Delete alternative vertices in the stroke, except extremes"},
        {GP_SIMPLIFY_ADAPTIVE,
         "ADAPTIVE",
         ICON_IPO_EASE_IN_OUT,
         "Adaptive",
         "Use a RDP algorithm to simplify"},
        {0, NULL, 0, NULL, NULL},
    };
  
    srna = RNA_def_struct(brna, "SimplifyGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Simplify Modifier", "Simplify Stroke modifier");
    RNA_def_struct_sdna(srna, "SimplifyGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_SIMPLIFY);
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "factor", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "factor");
    RNA_def_property_range(prop, 0, 100.0);
    RNA_def_property_ui_range(prop, 0, 100.0, 1.0f, 3);
    RNA_def_property_ui_text(prop, "Factor", "Factor of Simplify");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SIMPLIFY_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SIMPLIFY_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_SIMPLIFY_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    /* Mode */
    prop = RNA_def_property(srna, "mode", PROP_ENUM, PROP_NONE);
    RNA_def_property_enum_items(prop, prop_gpencil_simplify_mode_items);
    RNA_def_property_ui_text(prop, "Mode", "How simplify the stroke");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "step", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "step");
    RNA_def_property_range(prop, 1, 50);
    RNA_def_property_ui_text(prop, "Iterations", "Number of times to apply simplify");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencilthick(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "ThickGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Thick Modifier", "Subdivide and Smooth Stroke modifier");
    RNA_def_struct_sdna(srna, "ThickGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_THICKNESS);
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "vertex_group", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "vgname");
    RNA_def_property_ui_text(prop, "Vertex Group", "Vertex group name for modulating the deform");
    RNA_def_property_string_funcs(prop, NULL, NULL, "rna_ThickGpencilModifier_vgname_set");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "thickness", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "thickness");
    RNA_def_property_range(prop, -100, 500);
    RNA_def_property_ui_text(prop, "Thickness", "Factor of thickness change");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_THICK_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_THICK_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_vertex", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_THICK_INVERT_VGROUP);
    RNA_def_property_ui_text(prop, "Inverse VertexGroup", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_THICK_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_custom_curve", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_THICK_CUSTOM_CURVE);
    RNA_def_property_ui_text(prop, "Custom Curve", "Use a custom curve to define thickness changes");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "normalize_thickness", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_THICK_NORMALIZE);
    RNA_def_property_ui_text(prop, "Normalize", "Normalize the full stroke to modifier thickness");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "curve", PROP_POINTER, PROP_NONE);
    RNA_def_property_pointer_sdna(prop, NULL, "curve_thickness");
    RNA_def_property_ui_text(prop, "Curve", "Custom Thickness Curve");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpenciloffset(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "OffsetGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Offset Modifier", "Offset Stroke modifier");
    RNA_def_struct_sdna(srna, "OffsetGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_OFFSET);
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "vertex_group", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "vgname");
    RNA_def_property_ui_text(prop, "Vertex Group", "Vertex group name for modulating the deform");
    RNA_def_property_string_funcs(prop, NULL, NULL, "rna_OffsetGpencilModifier_vgname_set");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_OFFSET_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_OFFSET_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_vertex", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_OFFSET_INVERT_VGROUP);
    RNA_def_property_ui_text(prop, "Inverse VertexGroup", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_OFFSET_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "location", PROP_FLOAT, PROP_TRANSLATION);
    RNA_def_property_float_sdna(prop, NULL, "loc");
    RNA_def_property_ui_text(prop, "Location", "Values for change location");
    RNA_def_property_ui_range(prop, -FLT_MAX, FLT_MAX, 1, RNA_TRANSLATION_PREC_DEFAULT);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "rotation", PROP_FLOAT, PROP_EULER);
    RNA_def_property_float_sdna(prop, NULL, "rot");
    RNA_def_property_ui_text(prop, "Rotation", "Values for changes in rotation");
    RNA_def_property_ui_range(prop, -FLT_MAX, FLT_MAX, 1, RNA_TRANSLATION_PREC_DEFAULT);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "scale", PROP_FLOAT, PROP_XYZ);
    RNA_def_property_float_sdna(prop, NULL, "scale");
    RNA_def_property_ui_text(prop, "Scale", "Values for changes in scale");
    RNA_def_property_ui_range(prop, -FLT_MAX, FLT_MAX, 1, RNA_TRANSLATION_PREC_DEFAULT);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpenciltint(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "TintGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Tint Modifier", "Tint Stroke Color modifier");
    RNA_def_struct_sdna(srna, "TintGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_COLOR);
  
    prop = RNA_def_property(srna, "modify_color", PROP_ENUM, PROP_NONE);
    RNA_def_property_enum_items(prop, modifier_modify_color_items); /* share the enum */
    RNA_def_property_ui_text(prop, "Mode", "Set what colors of the stroke are affected");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "color", PROP_FLOAT, PROP_COLOR_GAMMA);
    RNA_def_property_range(prop, 0.0, 1.0);
    RNA_def_property_float_sdna(prop, NULL, "rgb");
    RNA_def_property_array(prop, 3);
    RNA_def_property_ui_text(prop, "Color", "Color used for tinting");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "factor", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "factor");
    RNA_def_property_ui_range(prop, 0, 2.0, 0.1, 3);
    RNA_def_property_ui_text(prop, "Factor", "Factor for mixing color");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "create_materials", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_TINT_CREATE_COLORS);
    RNA_def_property_ui_text(prop, "Create Materials", "When apply modifier, create new material");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_TINT_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_TINT_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_TINT_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpenciltime(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "TimeGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Time Offset Modifier", "Time offset modifier");
    RNA_def_struct_sdna(srna, "TimeGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_TIME);
  
    prop = RNA_def_property(srna, "mode", PROP_ENUM, PROP_NONE);
    RNA_def_property_enum_sdna(prop, NULL, "mode");
    RNA_def_property_enum_items(prop, rna_enum_time_mode_items);
    RNA_def_property_ui_text(prop, "Mode", "");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_TIME_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_TIME_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "offset", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "offset");
    RNA_def_property_range(prop, -INT_MAX, INT_MAX);
    RNA_def_property_ui_text(
        prop, "Frame Offset", "Number of frames to offset original keyframe number or frame to fix");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "frame_scale", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "frame_scale");
    RNA_def_property_range(prop, 0.001f, 100.0f);
    RNA_def_property_ui_text(prop, "Frame Scale", "Evaluation time in seconds");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "frame_start", PROP_INT, PROP_TIME);
    RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
    RNA_def_property_int_sdna(prop, NULL, "sfra");
    RNA_def_property_int_funcs(prop, NULL, "rna_TimeModifier_start_frame_set", NULL);
    RNA_def_property_range(prop, MINFRAME, MAXFRAME);
    RNA_def_property_int_default(prop, 1);
    RNA_def_property_ui_text(prop, "Start Frame", "First frame of the range");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "frame_end", PROP_INT, PROP_TIME);
    RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
    RNA_def_property_int_sdna(prop, NULL, "efra");
    RNA_def_property_int_funcs(prop, NULL, "rna_TimeModifier_end_frame_set", NULL);
    RNA_def_property_range(prop, MINFRAME, MAXFRAME);
    RNA_def_property_int_default(prop, 250);
    RNA_def_property_ui_text(prop, "End Frame", "Final frame of the range");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_keep_loop", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_TIME_KEEP_LOOP);
    RNA_def_property_ui_text(
        prop, "Keep Loop", "Retiming end frames and move to start of animation to keep loop");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_custom_frame_range", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_TIME_CUSTOM_RANGE);
    RNA_def_property_ui_text(
        prop, "Custom Range", "Define a custom range of frames to use in modifier");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencilcolor(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "ColorGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Hue/Saturation Modifier", "Change Hue/Saturation modifier");
    RNA_def_struct_sdna(srna, "ColorGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_TINT);
  
    prop = RNA_def_property(srna, "modify_color", PROP_ENUM, PROP_NONE);
    RNA_def_property_enum_items(prop, modifier_modify_color_items); /* share the enum */
    RNA_def_property_ui_text(prop, "Mode", "Set what colors of the stroke are affected");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "hue", PROP_FLOAT, PROP_NONE);
    RNA_def_property_range(prop, 0.0, 2.0);
    RNA_def_property_ui_range(prop, 0.0, 2.0, 0.1, 3);
    RNA_def_property_float_sdna(prop, NULL, "hsv[0]");
    RNA_def_property_ui_text(prop, "Hue", "Color Hue");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "saturation", PROP_FLOAT, PROP_NONE);
    RNA_def_property_range(prop, 0.0, 2.0);
    RNA_def_property_ui_range(prop, 0.0, 2.0, 0.1, 3);
    RNA_def_property_float_sdna(prop, NULL, "hsv[1]");
    RNA_def_property_ui_text(prop, "Saturation", "Color Saturation");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "value", PROP_FLOAT, PROP_NONE);
    RNA_def_property_range(prop, 0.0, 2.0);
    RNA_def_property_ui_range(prop, 0.0, 2.0, 0.1, 3);
    RNA_def_property_float_sdna(prop, NULL, "hsv[2]");
    RNA_def_property_ui_text(prop, "Value", "Color Value");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "create_materials", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_COLOR_CREATE_COLORS);
    RNA_def_property_ui_text(prop, "Create Materials", "When apply modifier, create new material");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_COLOR_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_COLOR_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_COLOR_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencilopacity(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "OpacityGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Opacity Modifier", "Opacity of Strokes modifier");
    RNA_def_struct_sdna(srna, "OpacityGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_OPACITY);
  
    prop = RNA_def_property(srna, "modify_color", PROP_ENUM, PROP_NONE);
    RNA_def_property_enum_items(prop, modifier_modify_color_items); /* share the enum */
    RNA_def_property_ui_text(prop, "Mode", "Set what colors of the stroke are affected");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "vertex_group", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "vgname");
    RNA_def_property_ui_text(prop, "Vertex Group", "Vertex group name for modulating the deform");
    RNA_def_property_string_funcs(prop, NULL, NULL, "rna_OpacityGpencilModifier_vgname_set");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "factor", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "factor");
    RNA_def_property_ui_range(prop, 0, 2.0, 0.1, 3);
    RNA_def_property_ui_text(prop, "Factor", "Factor of Opacity");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "create_materials", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_OPACITY_CREATE_COLORS);
    RNA_def_property_ui_text(prop, "Create Materials", "When apply modifier, create new material");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_OPACITY_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_OPACITY_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_vertex", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_OPACITY_INVERT_VGROUP);
    RNA_def_property_ui_text(prop, "Inverse VertexGroup", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_OPACITY_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencilinstance(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "ArrayGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Instance Modifier", "Create grid of duplicate instances");
    RNA_def_struct_sdna(srna, "ArrayGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_ARRAY);
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "count", PROP_INT, PROP_NONE);
    RNA_def_property_range(prop, 1, INT_MAX);
    RNA_def_property_ui_range(prop, 1, 50, 1, -1);
    RNA_def_property_ui_text(prop, "Count", "Number of items");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    /* Offset parameters */
    prop = RNA_def_property(srna, "offset_object", PROP_POINTER, PROP_NONE);
    RNA_def_property_pointer_sdna(prop, NULL, "object");
    RNA_def_property_ui_text(
        prop,
        "Object Offset",
        "Use the location and rotation of another object to determine the distance and "
        "rotational change between arrayed items");
    RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_SELF_CHECK);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  
    prop = RNA_def_property(srna, "offset", PROP_FLOAT, PROP_TRANSLATION);
    RNA_def_property_float_sdna(prop, NULL, "offset");
    RNA_def_property_ui_text(prop, "Offset", "Value for the distance between items");
    RNA_def_property_ui_range(prop, -FLT_MAX, FLT_MAX, 1, RNA_TRANSLATION_PREC_DEFAULT);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "shift", PROP_FLOAT, PROP_TRANSLATION);
    RNA_def_property_float_sdna(prop, NULL, "shift");
    RNA_def_property_ui_text(prop, "Shift", "Shiftiness value");
    RNA_def_property_ui_range(prop, -FLT_MAX, FLT_MAX, 1, RNA_TRANSLATION_PREC_DEFAULT);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "rotation", PROP_FLOAT, PROP_EULER);
    RNA_def_property_float_sdna(prop, NULL, "rot");
    RNA_def_property_ui_text(prop, "Rotation", "Value for changes in rotation");
    RNA_def_property_ui_range(prop, -FLT_MAX, FLT_MAX, 1, RNA_TRANSLATION_PREC_DEFAULT);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "scale", PROP_FLOAT, PROP_XYZ);
    RNA_def_property_float_sdna(prop, NULL, "scale");
    RNA_def_property_ui_text(prop, "Scale", "Value for changes in scale");
    RNA_def_property_ui_range(prop, -FLT_MAX, FLT_MAX, 1, RNA_TRANSLATION_PREC_DEFAULT);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "random_rot", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_ARRAY_RANDOM_ROT);
    RNA_def_property_ui_text(prop, "Random Rotation", "Use random factors for rotation");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "rot_factor", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "rnd_rot");
    RNA_def_property_ui_text(prop, "Rotation Factor", "Random factor for rotation");
    RNA_def_property_range(prop, -10.0, 10.0);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "random_scale", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_ARRAY_RANDOM_SIZE);
    RNA_def_property_ui_text(prop, "Random Scale", "Use random factors for scale");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "scale_factor", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "rnd_size");
    RNA_def_property_ui_text(prop, "Scale Factor", "Random factor for scale");
    RNA_def_property_range(prop, -10.0, 10.0);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "replace_material", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "mat_rpl");
    RNA_def_property_range(prop, 0, INT_MAX);
    RNA_def_property_ui_text(
        prop,
        "Material",
        "Index of the material used for generated strokes (0 keep original material)");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_ARRAY_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_ARRAY_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_ARRAY_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "keep_on_top", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_ARRAY_KEEP_ONTOP);
    RNA_def_property_ui_text(
        prop,
        "Keep On Top",
        "Keep the original stroke in front of new instances (only affect by layer)");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencilbuild(BlenderRNA *brna)
  {
    static EnumPropertyItem prop_gpencil_build_mode_items[] = {
        {GP_BUILD_MODE_SEQUENTIAL,
         "SEQUENTIAL",
         ICON_PARTICLE_POINT,
         "Sequential",
         "Strokes appear/disappear one after the other, but only a single one changes at a time"},
        {GP_BUILD_MODE_CONCURRENT,
         "CONCURRENT",
         ICON_PARTICLE_TIP,
         "Concurrent",
         "Multiple strokes appear/disappear at once"},
        {0, NULL, 0, NULL, NULL},
    };
  
    static EnumPropertyItem prop_gpencil_build_transition_items[] = {
        {GP_BUILD_TRANSITION_GROW,
         "GROW",
         0,
         "Grow",
         "Show points in the order they occur in each stroke "
         "(e.g. for animating lines being drawn)"},
        {GP_BUILD_TRANSITION_SHRINK,
         "SHRINK",
         0,
         "Shrink",
         "Hide points from the end of each stroke to the start "
         "(e.g. for animating lines being erased)"},
        {GP_BUILD_TRANSITION_FADE,
         "FADE",
         0,
         "Fade",
         "Hide points in the order they occur in each stroke "
         "(e.g. for animating ink fading or vanishing after getting drawn)"},
        {0, NULL, 0, NULL, NULL},
    };
  
    static EnumPropertyItem prop_gpencil_build_time_align_items[] = {
        {GP_BUILD_TIMEALIGN_START,
         "START",
         0,
         "Align Start",
         "All strokes start at same time (i.e. short strokes finish earlier)"},
        {GP_BUILD_TIMEALIGN_END,
         "END",
         0,
         "Align End",
         "All strokes end at same time (i.e. short strokes start later)"},
        {0, NULL, 0, NULL, NULL},
    };
  
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "BuildGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(srna, "Build Modifier", "Animate strokes appearing and disappearing");
    RNA_def_struct_sdna(srna, "BuildGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_BUILD);
  
    /* Mode */
    prop = RNA_def_property(srna, "mode", PROP_ENUM, PROP_NONE);
    RNA_def_property_enum_items(prop, prop_gpencil_build_mode_items);
    RNA_def_property_ui_text(prop, "Mode", "How many strokes are being animated at a time");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    /* Direction */
    prop = RNA_def_property(srna, "transition", PROP_ENUM, PROP_NONE);
    RNA_def_property_enum_items(prop, prop_gpencil_build_transition_items);
    RNA_def_property_ui_text(
        prop, "Transition", "How are strokes animated (i.e. are they appearing or disappearing)");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    /* Transition Onset Delay + Length */
    prop = RNA_def_property(srna, "start_delay", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "start_delay");
    RNA_def_property_ui_text(
        prop,
        "Start Delay",
        "Number of frames after each GP keyframe before the modifier has any effect");
    RNA_def_property_range(prop, 0, MAXFRAMEF);
    RNA_def_property_ui_range(prop, 0, 200, 1, -1);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "length", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "length");
    RNA_def_property_ui_text(prop,
                             "Length",
                             "Maximum number of frames that the build effect can run for "
                             "(unless another GP keyframe occurs before this time has elapsed)");
    RNA_def_property_range(prop, 1, MAXFRAMEF);
    RNA_def_property_ui_range(prop, 1, 1000, 1, -1);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    /* Concurrent Mode Settings */
    prop = RNA_def_property(srna, "concurrent_time_alignment", PROP_ENUM, PROP_NONE);
    RNA_def_property_enum_sdna(prop, NULL, "time_alignment");
    RNA_def_property_enum_items(prop, prop_gpencil_build_time_align_items);
    RNA_def_property_ui_text(
        prop, "Time Alignment", "When should strokes start to appear/disappear");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    /* Time Limits */
    prop = RNA_def_property(srna, "use_restrict_frame_range", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_BUILD_RESTRICT_TIME);
    RNA_def_property_ui_text(
        prop, "Restrict Frame Range", "Only modify strokes during the specified frame range");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "frame_start", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "start_frame");
    RNA_def_property_ui_text(
        prop, "Start Frame", "Start Frame (when Restrict Frame Range is enabled)");
    RNA_def_property_range(prop, MINAFRAMEF, MAXFRAMEF);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "frame_end", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "end_frame");
    RNA_def_property_ui_text(prop, "End Frame", "End Frame (when Restrict Frame Range is enabled)");
    RNA_def_property_range(prop, MINAFRAMEF, MAXFRAMEF);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    /* Filters - Layer */
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_BUILD_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_BUILD_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencillattice(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "LatticeGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(
        srna, "Lattice Modifier", "Change stroke using lattice to deform modifier");
    RNA_def_struct_sdna(srna, "LatticeGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_LATTICE);
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "vertex_group", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "vgname");
    RNA_def_property_ui_text(prop, "Vertex Group", "Vertex group name for modulating the deform");
    RNA_def_property_string_funcs(prop, NULL, NULL, "rna_LatticeGpencilModifier_vgname_set");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_LATTICE_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_LATTICE_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_vertex", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_LATTICE_INVERT_VGROUP);
    RNA_def_property_ui_text(prop, "Inverse VertexGroup", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_LATTICE_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "object", PROP_POINTER, PROP_NONE);
    RNA_def_property_ui_text(prop, "Object", "Lattice object to deform with");
    RNA_def_property_pointer_funcs(
        prop, NULL, "rna_LatticeGpencilModifier_object_set", NULL, "rna_Lattice_object_poll");
    RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_SELF_CHECK);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  
    prop = RNA_def_property(srna, "strength", PROP_FLOAT, PROP_NONE);
    RNA_def_property_range(prop, -FLT_MAX, FLT_MAX);
    RNA_def_property_ui_range(prop, 0, 1, 10, 2);
    RNA_def_property_ui_text(prop, "Strength", "Strength of modifier effect");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencilmirror(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "MirrorGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(
        srna, "Mirror Modifier", "Change stroke using lattice to deform modifier");
    RNA_def_struct_sdna(srna, "MirrorGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_MIRROR);
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_MIRROR_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_MIRROR_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_MIRROR_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "object", PROP_POINTER, PROP_NONE);
    RNA_def_property_ui_text(prop, "Object", "Object used as center");
    RNA_def_property_pointer_funcs(prop, NULL, "rna_MirrorGpencilModifier_object_set", NULL, NULL);
    RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_SELF_CHECK);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  
    prop = RNA_def_property(srna, "use_clip", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_MIRROR_CLIPPING);
    RNA_def_property_ui_text(prop, "Clip", "Clip points");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "x_axis", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_MIRROR_AXIS_X);
    RNA_def_property_ui_text(prop, "X", "Mirror this axis");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "y_axis", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_MIRROR_AXIS_Y);
    RNA_def_property_ui_text(prop, "Y", "Mirror this axis");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "z_axis", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_MIRROR_AXIS_Z);
    RNA_def_property_ui_text(prop, "Z", "Mirror this axis");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencilhook(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "HookGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(
        srna, "Hook Modifier", "Hook modifier to modify the location of stroke points");
    RNA_def_struct_sdna(srna, "HookGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_HOOK);
  
    prop = RNA_def_property(srna, "object", PROP_POINTER, PROP_NONE);
    RNA_def_property_ui_text(
        prop, "Object", "Parent Object for hook, also recalculates and clears offset");
    RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_SELF_CHECK);
    RNA_def_property_pointer_funcs(prop, NULL, "rna_HookGpencilModifier_object_set", NULL, NULL);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  
    prop = RNA_def_property(srna, "subtarget", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "subtarget");
    RNA_def_property_ui_text(
        prop,
        "Sub-Target",
        "Name of Parent Bone for hook (if applicable), also recalculates and clears offset");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  
    prop = RNA_def_property(srna, "layer", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "layername");
    RNA_def_property_ui_text(prop, "Layer", "Layer name");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "vertex_group", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "vgname");
    RNA_def_property_ui_text(prop, "Vertex Group", "Vertex group name for modulating the deform");
    RNA_def_property_string_funcs(prop, NULL, NULL, "rna_HookGpencilModifier_vgname_set");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "pass_index", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "pass_index");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layers", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_HOOK_INVERT_LAYER);
    RNA_def_property_ui_text(prop, "Inverse Layers", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_material_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_HOOK_INVERT_PASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_vertex", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_HOOK_INVERT_VGROUP);
    RNA_def_property_ui_text(prop, "Inverse VertexGroup", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "layer_pass", PROP_INT, PROP_NONE);
    RNA_def_property_int_sdna(prop, NULL, "layer_pass");
    RNA_def_property_range(prop, 0, 100);
    RNA_def_property_ui_text(prop, "Pass", "Layer pass index");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "invert_layer_pass", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_HOOK_INVERT_LAYERPASS);
    RNA_def_property_ui_text(prop, "Inverse Pass", "Inverse filter");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "strength", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "force");
    RNA_def_property_range(prop, 0, 1);
    RNA_def_property_ui_text(prop, "Strength", "Relative force of the hook");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "falloff_type", PROP_ENUM, PROP_NONE);
    RNA_def_property_enum_items(prop, modifier_gphook_falloff_items); /* share the enum */
    RNA_def_property_ui_text(prop, "Falloff Type", "");
    RNA_def_property_translation_context(prop, BLT_I18NCONTEXT_ID_CURVE); /* Abusing id_curve :/ */
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "falloff_radius", PROP_FLOAT, PROP_DISTANCE);
    RNA_def_property_float_sdna(prop, NULL, "falloff");
    RNA_def_property_range(prop, 0, FLT_MAX);
    RNA_def_property_ui_range(prop, 0, 100, 100, 2);
    RNA_def_property_ui_text(
        prop, "Radius", "If not zero, the distance from the hook where influence ends");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "falloff_curve", PROP_POINTER, PROP_NONE);
    RNA_def_property_pointer_sdna(prop, NULL, "curfalloff");
    RNA_def_property_ui_text(prop, "Falloff Curve", "Custom Light Falloff Curve");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "center", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "cent");
    RNA_def_property_ui_text(prop, "Hook Center", "");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "matrix_inverse", PROP_FLOAT, PROP_MATRIX);
    RNA_def_property_float_sdna(prop, NULL, "parentinv");
    RNA_def_property_multi_array(prop, 2, rna_matrix_dimsize_4x4);
    RNA_def_property_ui_text(
        prop, "Matrix", "Reverse the transformation between this object and its target");
    RNA_def_property_update(prop, NC_OBJECT | ND_TRANSFORM, "rna_GpencilModifier_update");
  
    prop = RNA_def_property(srna, "use_falloff_uniform", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", GP_HOOK_UNIFORM_SPACE);
    RNA_def_property_ui_text(prop, "Uniform Falloff", "Compensate for non-uniform object scale");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
  }
  
  static void rna_def_modifier_gpencilarmature(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    srna = RNA_def_struct(brna, "ArmatureGpencilModifier", "GpencilModifier");
    RNA_def_struct_ui_text(
        srna, "Armature Modifier", "Change stroke using armature to deform modifier");
    RNA_def_struct_sdna(srna, "ArmatureGpencilModifierData");
    RNA_def_struct_ui_icon(srna, ICON_MOD_ARMATURE);
  
    prop = RNA_def_property(srna, "object", PROP_POINTER, PROP_NONE);
    RNA_def_property_ui_text(prop, "Object", "Armature object to deform with");
    RNA_def_property_pointer_funcs(
        prop, NULL, "rna_ArmatureGpencilModifier_object_set", NULL, "rna_Armature_object_poll");
    RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_SELF_CHECK);
    RNA_def_property_override_flag(prop, PROPOVERRIDE_OVERRIDABLE_STATIC);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  
    prop = RNA_def_property(srna, "use_bone_envelopes", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "deformflag", ARM_DEF_ENVELOPE);
    RNA_def_property_ui_text(prop, "Use Bone Envelopes", "Bind Bone envelopes to armature modifier");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  
    prop = RNA_def_property(srna, "use_vertex_groups", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "deformflag", ARM_DEF_VGROUP);
    RNA_def_property_ui_text(prop, "Use Vertex Groups", "Bind vertex groups to armature modifier");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  
    prop = RNA_def_property(srna, "use_deform_preserve_volume", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "deformflag", ARM_DEF_QUATERNION);
    RNA_def_property_ui_text(
        prop, "Preserve Volume", "Deform rotation interpolation with quaternions");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  
  #  if 0 /* GPXX keep disabled now */
    prop = RNA_def_property(srna, "use_multi_modifier", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "multi", 0);
    RNA_def_property_ui_text(
        prop,
        "Multi Modifier",
        "Use same input as previous modifier, and mix results using overall vgroup");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  #  endif
  
    prop = RNA_def_property(srna, "vertex_group", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "vgname");
    RNA_def_property_ui_text(
        prop,
        "Vertex Group",
        "Name of Vertex Group which determines influence of modifier per point");
    RNA_def_property_string_funcs(prop, NULL, NULL, "rna_ArmatureGpencilModifier_vgname_set");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  
    prop = RNA_def_property(srna, "invert_vertex_group", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "deformflag", ARM_DEF_INVERT_VGROUP);
    RNA_def_property_ui_text(prop, "Invert", "Invert vertex group influence");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_dependency_update");
  }
  
  void RNA_def_greasepencil_modifier(BlenderRNA *brna)
  {
    StructRNA *srna;
    PropertyRNA *prop;
  
    /* data */
    srna = RNA_def_struct(brna, "GpencilModifier", NULL);
    RNA_def_struct_ui_text(srna, "GpencilModifier", "Modifier affecting the grease pencil object");
    RNA_def_struct_refine_func(srna, "rna_GpencilModifier_refine");
    RNA_def_struct_path_func(srna, "rna_GpencilModifier_path");
    RNA_def_struct_sdna(srna, "GpencilModifierData");
  
    /* strings */
    prop = RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
    RNA_def_property_string_funcs(prop, NULL, NULL, "rna_GpencilModifier_name_set");
    RNA_def_property_ui_text(prop, "Name", "Modifier name");
    RNA_def_property_update(prop, NC_OBJECT | ND_MODIFIER | NA_RENAME, NULL);
    RNA_def_struct_name_property(srna, prop);
  
    /* enums */
    prop = RNA_def_property(srna, "type", PROP_ENUM, PROP_NONE);
    RNA_def_property_clear_flag(prop, PROP_EDITABLE);
    RNA_def_property_enum_sdna(prop, NULL, "type");
    RNA_def_property_enum_items(prop, rna_enum_object_greasepencil_modifier_type_items);
    RNA_def_property_ui_text(prop, "Type", "");
  
    /* flags */
    prop = RNA_def_property(srna, "show_viewport", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "mode", eGpencilModifierMode_Realtime);
    RNA_def_property_ui_text(prop, "Realtime", "Display modifier in viewport");
    RNA_def_property_flag(prop, PROP_LIB_EXCEPTION);
    RNA_def_property_override_flag(prop, PROPOVERRIDE_OVERRIDABLE_STATIC);
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
    RNA_def_property_ui_icon(prop, ICON_RESTRICT_VIEW_ON, 1);
  
    prop = RNA_def_property(srna, "show_render", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "mode", eGpencilModifierMode_Render);
    RNA_def_property_override_flag(prop, PROPOVERRIDE_OVERRIDABLE_STATIC);
    RNA_def_property_ui_text(prop, "Render", "Use modifier during render");
    RNA_def_property_ui_icon(prop, ICON_RESTRICT_RENDER_ON, 1);
    RNA_def_property_update(prop, NC_OBJECT | ND_MODIFIER, NULL);
  
    prop = RNA_def_property(srna, "show_in_editmode", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "mode", eGpencilModifierMode_Editmode);
    RNA_def_property_ui_text(prop, "Edit Mode", "Display modifier in Edit mode");
    RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
    RNA_def_property_ui_icon(prop, ICON_EDITMODE_HLT, 0);
  
    prop = RNA_def_property(srna, "show_expanded", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_flag(prop, PROP_NO_DEG_UPDATE);
    RNA_def_property_boolean_sdna(prop, NULL, "mode", eGpencilModifierMode_Expanded);
    RNA_def_property_override_flag(prop, PROPOVERRIDE_OVERRIDABLE_STATIC);
    RNA_def_property_ui_text(prop, "Expanded", "Set modifier expanded in the user interface");
    RNA_def_property_ui_icon(prop, ICON_DISCLOSURE_TRI_RIGHT, 1);
  
    /* types */
    rna_def_modifier_gpencilnoise(brna);
    rna_def_modifier_gpencilsmooth(brna);
    rna_def_modifier_gpencilsubdiv(brna);
    rna_def_modifier_gpencilsimplify(brna);
    rna_def_modifier_gpencilthick(brna);
    rna_def_modifier_gpenciloffset(brna);
    rna_def_modifier_gpenciltint(brna);
    rna_def_modifier_gpenciltime(brna);
    rna_def_modifier_gpencilcolor(brna);
    rna_def_modifier_gpencilinstance(brna);
    rna_def_modifier_gpencilbuild(brna);
    rna_def_modifier_gpencilopacity(brna);
    rna_def_modifier_gpencillattice(brna);
    rna_def_modifier_gpencilmirror(brna);
    rna_def_modifier_gpencilhook(brna);
    rna_def_modifier_gpencilarmature(brna);
  }
  
  #endif
  