Class KX_MeshProxy

PyObjectPlus --+        
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          CValue --+    
                   |    
         SCA_IObject --+
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                      KX_MeshProxy

A mesh object.

You can only change the vertex properties of a mesh object, not the mesh topology.

To use mesh objects effectively, you should know a bit about how the game engine handles them.

1. Mesh Objects are converted from Blender at scene load.
2. The Converter groups polygons by Material. This means they can be sent to the renderer efficiently. A material holds:
   1. The texture.
   2. The Blender material.
   3. The Tile properties
   4. The face properties - (From the "Texture Face" panel)
   5. Transparency & z sorting
   6. Light layer
   7. Polygon shape (triangle/quad)
   8. Game Object
3. Verticies will be split by face if necessary. Verticies can only be shared between faces if:
   1. They are at the same position
   2. UV coordinates are the same
   3. Their normals are the same (both polygons are "Set Smooth")
   4. They are the same colour

   For example: a cube has 24 verticies: 6 faces with 4 verticies per face.

The correct method of iterating over every KX_VertexProxy in a game object:

       import GameLogic
       
       co = GameLogic.getCurrentController()
       obj = co.owner
       
       m_i = 0
       mesh = obj.getMesh(m_i) # There can be more than one mesh...
       while mesh != None:
               for mat in range(mesh.getNumMaterials()):
                       for v_index in range(mesh.getVertexArrayLength(mat)):
                               vertex = mesh.getVertex(mat, v_index)
                               # Do something with vertex here...
                               # ... eg: colour the vertex red.
                               vertex.colour = [1.0, 0.0, 0.0, 1.0]
               m_i += 1
               mesh = obj.getMesh(m_i)