anchor.diff:  
   *Learn more:*
   
  -* <<jme3/beginner/hello_material#,Hello Material>>
  -* <<jme3/intermediate/how_to_use_materials#,How To Use Materials>>
  -* <<jme3/advanced/materials_overview#,Materials Overview>>
  -* <<jme3/advanced/asset_manager#,Asset Manager>>
  +* xref:beginner/hello_material.adoc[Hello Material]
  +* xref:intermediate/how_to_use_materials.adoc[How To Use Materials]
  +* xref:ROOT:jme3/advanced/materials_overview.adoc[Materials Overview]
  +* xref:ROOT:jme3/advanced/asset_manager.adoc[Asset Manager]
   * link:https://github.com/jMonkeyEngine/jmonkeyengine/blob/master/jme3-core/src/main/java/com/jme3/asset/AssetManager.java[com.jme3.assets.AssetManager]
   * link:https://archive.blender.org/wiki/index.php/Doc:Manual/Textures/Maps/Bump_and_Normal_Maps/[Blender: Creating Bump Maps and Normal Maps]
   
  
positive.code: 
  *Learn more:*
  
  * <<jme3/beginner/hello_material#,Hello Material>>
  * <<jme3/intermediate/how_to_use_materials#,How To Use Materials>>
  
  
  === How do I force or disable culling?
  
negative.code: 
  *Learn more:*
  
  * xref:ROOT:jme3/the_scene_graph.adoc[The Scene Graph]
  * xref:beginner/hello_node.adoc[Hello Node]
  * xref:beginner/hello_asset.adoc[Hello Asset]
  * xref:ROOT:jme3/advanced/spatial.adoc[Spatial]
  * link:https://github.com/jMonkeyEngine/jmonkeyengine/blob/master/jme3-core/src/main/java/com/jme3/scene/Node.java[com.jme3.scene.Node]
  * link:https://github.com/jMonkeyEngine/jmonkeyengine/blob/master/jme3-core/src/main/java/com/jme3/scene/Geometry.java[com.jme3.scene.Geometry]
  
  