How to create a ramp like this?

[jerry7]

How to create a ramp like this in render tree? i can't make it with the gradient shader .

[g.m.]

You could set the gradient type to horizontal, add a cylindrical texture projection, then set uv generation to implicit on the texture_projection_def ppg. Maybe you need to change the projection plane of the texture support. Probably there's another way of doing this. Hope this helps.

[Hirazi Blue]

Not sure if I understand you correctly, but couldn't you achieve this by setting the "Gradient Type" to "Radial Rainbow" and then editing the color markers accordingly?

[g.m.]

The radial rainbow didn't work for me, but maybe this screenshot explains my method better.

[jerry7]

it maybe can't apply to a sphere with many tiles.

[g.m.]

You could use the picture from your first post to create a texture in photoshop or is it necessary to do it in xsi?

[jerry7]

I want make a spin animation. Thank you anyway!