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March 25, 2013

Vertex Color Map

setting vertex colors

first, run this code only on primitive objects until you understand what it does. this is for setting vertex colors of a vertex color map

getting vertex colors

getting vertex colors is similar but in reverse, remember that 1 vertex can be shared by several polygons and each polygon can set a different color for that vertex/index. Notice how the plane divided into 4 below has one central vertex which is shared by 4 surrounding polygons, each polygon has a different color for that vertex.

Material from vertex color map

this requires setting viewport shading from solid to texture.