Plain colored quad with glBlendFunc()

[simonhyttfors]

I've put glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); in my OpenGL initialization code so the transparent part of my textures remains so. But I now want to add a simple colored quad, without any texture. This won't show up as long as I keep the glBlendFunc line. How do I fix it?

[quew8]

Disable blend function, disable textures, draw quad, enable blend function, enable textures.

[Fool Running]

You should be able to keep the blend function enabled and just disable the textures. Just make sure you don't use a color with a zero alpha channel.

[quew8]

I was thinking along the lines of performance. If it's just the one non-blended quad, don't bother disabling blend. If there are a lot of them, I think disabling blend would be a fair amount quicker.

But maybe not. If nothing else, disabling blend is less error prone.