glClearColor with Gradient

OpenGL OpenGL: Advanced Coding
1

Hello, I would like to know if it is possible to have a background with a color gradient instead of a single color as with glClearColor.

2

Well, here’s some advanced code for drawing a background gradient:

DisableZwrites();

setColor(upperGradientColor);
drawVertex2d(-1.f, -1.f);
drawVertex2d( 1.f, -1.f);

setColor(lowerGradientColor);
drawVertex2d( 1.f, 1.f);
drawVertex2d(-1.f, 1.f);

drawClouds();

EnableZwrites();

(yes, that was pseudocode… please don’t try to compile it)