Transparency Anti-aliasing

OpenGL OpenGL: Advanced Coding

Dave_Lyne January 2, 2008, 3:35pm 1

Hi,

Is TAA (Transparency anti-aliasing) possible via the OpenGL API? Are there some extensions to enable this?

Thanks,

David.

MalcolmB January 2, 2008, 4:24pm 2

It’s part of the multisample spec.
http://www.opengl.org/registry/specs/ARB/multisample.txt

Look for ALPHA_TO_COVERAGE.

sqrt_1 January 2, 2008, 6:54pm 3

Note that Humus did a demo of this way back in 2005:

http://www.humus.ca/index.php?page=3D&ID=61