I'm using GL_R8 for internal format, GL_RED for format and GL_UNSIGNED_BYTE for type.

What is the most efficient way to transfer planar YUVA images for rendering in OpenGL?

Currently I'm using 4 separate textures (Y, U, V, A) to which I upload to from 4 separate PBOs during each...

I'm doing some GPGPU computing using Opengl and a Nvidia Quadro 2000M card.

While profiling I noticed that my glTexImage2D calls for texture uploads from PBOs are taking 20% of the cpu time, as...