BlackSheep

WebGL Gradient Shader

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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.

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