Color Matrix ...

Dear All,

can the color matrix in OpenGL also be used for color conversion of mesh-vertices (I want to do image-based rendering, using line, resp. triangle strips for image resampling and the images that are to be “warped” come from an MPEG decoder, they are therefore YUV 4:2:0)? Or can it only be used with images? If it can’t, is there another fast way to convert colors of vertices?

Best regards