Here's how I would do it, not sure how similar it is to Brams.
For the parts of the model which need to be changed by the colour texture ... make sure they are grey scale only, leave the rest as is.
Using the second UV channel , change the coords for those vertices which are to remain untouched to 0,0 and those which will be effected by the second colour texture to .5, .5. The color texture should be pure white with a coloured square in the middle. Leave at least a 2 pixel white edge. An 8x8 texture size would be fine for this.
Simply apply the second texture using multiply blend.
You could either change the colour by overwriting the coloured rect in the middle of the second texture or just make one larger animtexture and re-texture the model each time using a different frame.
Make sense?
Stevie
For the parts of the model which need to be changed by the colour texture ... make sure they are grey scale only, leave the rest as is.
Using the second UV channel , change the coords for those vertices which are to remain untouched to 0,0 and those which will be effected by the second colour texture to .5, .5. The color texture should be pure white with a coloured square in the middle. Leave at least a 2 pixel white edge. An 8x8 texture size would be fine for this.
Simply apply the second texture using multiply blend.
You could either change the colour by overwriting the coloured rect in the middle of the second texture or just make one larger animtexture and re-texture the model each time using a different frame.
Make sense?
Stevie