I'm having some trouble with image blurring, I believe due to anti aliasing in an opengl 3d scene. Basically the app is a picture viewer where the pictures are floating around in a 3d space. When I click on one of the floating images it moves to the foreground but even at zero in the z coordinates, opengl seems to render the image with a slight blur.
Is there an OpenGL expert around who can suggest a method for drawing pixel-perfect textures on top of a 3d scene? I've tried every combination of blend modes and orthographic projections I can think of.
The app works perfectly except for that last step where I need the picture to be pixel-for-pixel as it was when it was loaded.