text: //this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
  static const char* projectiveTextureInstancingVertexShader= \
  "#version 330 \n"
  "precision highp float;\n"
  "layout (location = 0) in vec4 position;\n"
  "layout (location = 1) in vec4 instance_position;\n"
  "layout (location = 2) in vec4 instance_quaternion;\n"
  "layout (location = 3) in vec2 uvcoords;\n"
  "layout (location = 4) in vec3 vertexnormal;\n"
  "layout (location = 5) in vec4 instance_color;\n"
  "layout (location = 6) in vec3 instance_scale;\n"
  "uniform mat4 TextureMVP;\n"
  "uniform mat4 MVP;\n"
  "uniform vec3 lightPosIn;\n"
  "uniform vec3 cameraPositionIn;\n"
  "uniform mat4 ViewMatrixInverse;\n"
  "uniform float materialShininessIn;\n"
  "uniform vec3 lightSpecularIntensityIn;\n"
  "uniform vec3 materialSpecularColorIn;\n"
  "out vec4 ShadowCoord;\n"
  "out Fragment\n"
  "{\n"
  "     vec4 color;\n"
  "} fragment;\n"
  "out Vert\n"
  "{\n"
  "	vec2 texcoord;\n"
  "} vert;\n"
  "vec4 quatMul ( in vec4 q1, in vec4 q2 )\n"
  "{\n"
  "    vec3  im = q1.w * q2.xyz + q1.xyz * q2.w + cross ( q1.xyz, q2.xyz );\n"
  "    vec4  dt = q1 * q2;\n"
  "    float re = dot ( dt, vec4 ( -1.0, -1.0, -1.0, 1.0 ) );\n"
  "    return vec4 ( im, re );\n"
  "}\n"
  "vec4 quatFromAxisAngle(vec4 axis, in float angle)\n"
  "{\n"
  "    float cah = cos(angle*0.5);\n"
  "    float sah = sin(angle*0.5);\n"
  "	float d = inversesqrt(dot(axis,axis));\n"
  "	vec4 q = vec4(axis.x*sah*d,axis.y*sah*d,axis.z*sah*d,cah);\n"
  "	return q;\n"
  "}\n"
  "//\n"
  "// vector rotation via quaternion\n"
  "//\n"
  "vec4 quatRotate3 ( in vec3 p, in vec4 q )\n"
  "{\n"
  "    vec4 temp = quatMul ( q, vec4 ( p, 0.0 ) );\n"
  "    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );\n"
  "}\n"
  "vec4 quatRotate ( in vec4 p, in vec4 q )\n"
  "{\n"
  "    vec4 temp = quatMul ( q, p );\n"
  "    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );\n"
  "}\n"
  "out vec3 lightPos,normal,ambient;\n"
  "out vec4 vertexPos;\n"
  "out vec3 cameraPosition;\n"
  "out float materialShininess;\n"
  "out vec3 lightSpecularIntensity;\n"
  "out vec3 materialSpecularColor;\n"
  "void main(void)\n"
  "{\n"
  "	vec4 q = instance_quaternion;\n"
  "	ambient = vec3(0.5,.5,0.5);\n"
  "			\n"
  "	vec4 worldNormal = (quatRotate3( vertexnormal,q));\n"
  "	\n"
  "	normal = worldNormal.xyz;\n"
  "	lightPos = lightPosIn;\n"
  "	cameraPosition = cameraPositionIn;\n"
  "	materialShininess = materialShininessIn;\n"
  "	lightSpecularIntensity = lightSpecularIntensityIn;\n"
  "	materialSpecularColor = materialSpecularColorIn;\n"
  "	\n"
  "	vec4 localcoord = quatRotate3( position.xyz*instance_scale,q);\n"
  "	vertexPos = vec4((instance_position+localcoord).xyz,1);\n"
  "	\n"
  "	vec4 vertexLoc = MVP* vec4((instance_position+localcoord).xyz,1);\n"
  "	gl_Position = vertexLoc;\n"
  "	fragment.color = instance_color;\n"
  "}\n"
  ;
  