Blender Git Loki

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

Fix mistake in glReadPixels

Don't copy workspace when copying window

This kinda works, however screens are still completly broken after that
:) But: getting there!

Fix incorrect extern, also remove redundant rect

Merge branch 'master' into temp-select-pick

Rename select_method -> algorithm

Various fixes

Use projection matrix from OpenHMD even if "Rotation from HMD" is disabled

Was actually applying IPD wrongly, should be correct now.

Cleanup, minor fixes

dissolve constraint now only dissolves constraints between different clusters if clusters are used

additionally added a python-settable variable to indicate whether the dynamic fracture data has been loaded externally or not (just set it from the handler)

Use cache

Cache depth buffer for reuse

Merge branch 'master' into cycles_split_kernel

Merge branch 'master' into HMD_viewport

Cycles: Fix building of CUDA split kernel

Cycles: Fix indentation

Cycles: Fix strict warning about unused variable

Cycles: Calculate size of split state buffer kernel side

By calculating the size of the state buffer in the kernel rather than the host
less code is needed and the size actually reflects the requested features.

Will also be a little faster in some cases because of larger global work size.

Cycles: Fix crash after failed kernel build

Pointers to kernels were uninitialized leading to freeing of random memory
addresses. Another reason it would be good to use smart pointers.

Cycles: Faster building of split kernel

Simple change to make it so that only kernels that have been modified are
rebuilt. Might only be useful during development.