Blender Git Loki

Cycles: Cleanup, removed unused #define.

Cycles: Preventing divisoin by zero in adaptive sampling error function

Cycles: Some refactoring of adapive sampling code.

Cycles: Improved PMJ+denoising by properly splitting shadow buffers.

Cycles: Improved denoising with adaptive sampling.

Cycles: Fixed some warnings.

Cycles: Fixed AOVs with adaptive sampling, wrong flags was being used

Cycles: Added automatic settings for adaptive sampling.

Cycles: Removed obsolte buffers flag

Merge remote-tracking branch 'origin' into cycles_adaptive_sampling

# Conflicts:
# intern/cycles/device/opencl/opencl_base.cpp
# intern/cycles/device/opencl/opencl_mega.cpp
# intern/cycles/kernel/kernels/opencl/kernel.cl

Cycles: Adaptive sampling now rescales Cryptomatte passes correclty.

Cycles: Fixed some more AOVs when used with adaptive sampling

Cycles: Moved the box filter for adaptive sampling to separate file

Ccyles: Added adaptive sampling box filter to OpenCL mega kernel.

Cycles: Small fixes for adaptive sampling

Cycles: Improve adaptive sampling with split kernel

Ccyles: Added adaptive sampling box filter to CUDA.

Cycles: Added adaptive sampling support for AOVs

Cycles: Added passes support for adaptive sampling

Support for denoising passes still missing.

Cycles: Fixed build errors with gcc