Blender Git Loki

Cycles: Rename collaborative denoising option

Merge remote-tracking branch 'origin/master' into soc-2016-cycles_denoising

Cycles: Cache NLM weights

Cycles: Add options for NLM and collaborative filtering

Cycles: Fix Collaborative CUDA WLR denoising

Cycles: Rename Denoising DNA flags for clarity

Cycles: Move collaborative division into the kernel

Cycles: Fix CUDA compilation with NLM

Cycles: Experimental collaborative denoising

Right now tile borders are very visible, but that'll be fixed!

Cycles: Implement SSE4.1-vectorized NLM weights

Cycles: Fix a compiler warning

Cycles: Fix kernel C++ files

Cycles: Support denoising weighting adjustment

Cycles: Allow to use the NLM-weighted first-order regression filtering

Cycles: Store CPU kernel function pointers in objects to clean up the code

With the number of kernel functions that's currently needed, it was just getting to messy.
This commit is based on D1825.

Cycles: Split up the estimate_params kernel

Cycles: Implement NLM-weight filtering kernel

Cycles: Add a NLM filter for testing purposes

Cycles: Split up the denoising feature row functions

Cycles: Fix a unused variable warning