i’m new in vertex/fragment programming and i’ve heard some concepts that i don’t understand but i wish to, so could anyone, please, explain-me what texture indirections and dependent-reads are?
that’s how i understand this:
dependent-reads:
- read texture A
- use values from A to lookup into texture B
texture indirections:
- read the vertex mapping into register A
- access texture using register A instead of using the vertex mapping directly.
btw. this only applies to fp’s.(vp’s don’t support texture accesses)
thanks