glReadPixels Question

What does your current function look like?

I don't have one. I don't know how to make one, so that's my question.

glReadPixelsb(x, y, 1, 1, GL_RGB) works. Thanks for looking, everyone.

b == byte the -128->127 i think u perhaps want to use ub == unsigned byte which is 0->255

Where would I put that?
G

Instead of glReadPixelsb(x, y, 1, 1, GL_RGB) use glReadPixelsub(x, y, 1, 1, GL_RGB). :)

I see, but why would it make a difference?
G

When you use the glReadPixelsb(x, y, 1, 1, GL_RGB) function it returns an array of signed bytes. I.E. the byte has a both positive and negative side ranging from -128 to 127 as mentioned before. But since standard RGB values range from 0 to 255 you would want to use the function that returns unsigned bytes which also range from 0 to 255.

That's weird, the function works exactly as it should, perhaps because I'm using Python?

I don't know how your code looks like. But the bytes probably gets casted into unsigned bytes anyway when you store them.

IMHO, you should use glReadPixelsub(x, y, 1, 1, GL_RGB) anyway since it's probably unsigned bytes you want.

OK, will change that.