Quote Originally Posted by chronozphere
What kind of picture are you using :?

It seems to me, that you are using a completely green picture. If that's true, it's quite logical that you get these results. You must make sure that all transparent parts of the picture are black.

If i were you, i would render a white background, and try to "Add" blend a black picture with a green ball in the middle, over it. If you see black rectangles, something went wrong. If you only see white, and those green balls, Additive blending is working correctly

Hope this helps.

P.S. Can you post the picture that you are trying to blend??


The pic is white, and i colorize it with glcolor()