WebGL Gradient Shader

[BlackSheep 0]

Hey everyone,

 

I am trying to learn WebGL and would like to have shader that gives a mesh a gradient effect from top to bottom. For example, the bottom of a ball having no blue color and the top having all blue. I know I need to modify the fragment color with the y component of gl_Position but my implementations have thus far given me a black screen. Any help would be appreciated.

[Mefteg 23]

Hello,

 

It will help us to help you if you can give a link to your work and/or copy a part of your code in the thread.