How can I create a grayscale texture pattern, using data on some points of surface?

[attachment=13295:Capture123228_bw.png]

What exactly are you trying to accomplish?

Are you reading the grayscale values from a 1D/2D texture or do you have per-vertex values/tangents that you want to render with a banding/clamped look?

What exactly are you trying to accomplish?

Are you reading the grayscale values from a 1D/2D texture or do you have per-vertex values/tangents that you want to render with a banding/clamped look?

I want to build texture pattern (as in picture) using data on points.