Question by joep71 · Jul 03, 2017 at 01:15 PM · shader grid opengl vertex color

Fading GL rendered grid

I made a grid with GL functions. This is the function to draw a single line:

 void drawLine(Vector3 a, Vector3 b, Color col){
     GL.Begin(GL.LINES);
     GL.Color(col);
     GL.Vertex3(a.x, a.y, a.z);
     GL.Vertex3(b.x, b.y, b.z);
     GL.End();
 }

I want these lines to fade into the background. So I need a shader that both is affected by fog and has the vertex color (GL.Color(col)). Does anyone know how to make it?

This is what i have now (It isn't affected by the fog): alt text