I am also trying to use vertex colors, but I would like to use both diffuse and specular colors for each vertex. I can get the diffuse ones to work, but the specular color does not seem to have any effect. I assumed that you would have to do the same thing as with diffuse colors, like:
IFXVector4 diffuseColor(0.0f,1.0f,0.0f,1.0f);
IFXVector4 specularColor(0.0f,1.0f,0.0f,1.0f);...
2009-06-23 19:14:45 UTC in Universal 3D Sample Software