Colormap 3

Hi!

I'm in your constructs, mapping your colors.

Here's how to do a particle emitter that goes through 3 colors instead of two:

Have a normal particle emitter. Have it go from black to white or from white to black.

Then apply colormap3 effect and set the 3 colors and position of the middle point.

Tada!

http://www.udec.cl/~jfuente_alba/colormap3.fx

http://www.udec.cl/~jfuente_alba/colormap3_test.cap

Can be easily extended to 4 or 5 colors, though I don't know how to make it so you can define the number of colors in the ramp. I'll soon extend to 4 and 5. That'll probably be enough.

Can someone check the shader code and see if I made any horrible mistakes in there? I'm quite new to shader code. Maybe the pixel shader version?

Now, if anyone can imagine a way to have this work with textured particles please do tell.

I can't imagine it without modifying the particle emitter to use a texture as a mask for it's own interpolated color.