Blender Git Loki

Manipulator: handle keymaps for selected items

Was only handling keymap items when the cursor
was hovering over a manipulator.

Fix Cycles multi scatter GGX different render results with Clang and GCC.

The order of evaluation of function arguments is undefined, and the order
was reversed between these compilers. This was causing regressions tests
to give different results between Linux and macOS.

Manipulator: setup_keymap callback

Also remove manipulator_group argument, the info's in the class.

Fix T52152: allow zero roughness for Cycles principled BSDF, don't clamp.

Fix Cycles denoising NaNs with a 1 sample renders.

This was causing different render results with different compilers. We
can't do much useful with 1 sample, but better for debugging.

Fix use of uninitialized value in Cycles, probably did not cause a bug.

Manipulator: use select keymap when enabled

Fix error in previous merge

Merge branch 'master' into blender2.8

Transform: remove unused argument

UI: Add Open Image button to Mask Stencil Image panel

In the future we should make these two buttons on one line
However because we need `gen_context = 'PAINT_STENCIL'`
this is a little hard and we need to find a proper solution.
One might be using `context_pointer_set`

Patch by @craig_jones with edits by @blendify

Differential Revision: https://developer.blender.org/D2710

UI: Add Open Image button to Mask Stencil Image panel

In the future we should make these two buttons on one line
However because we need `gen_context = 'PAINT_STENCIL'`
this is a little hard and we need to find a proper solution.
One might be using `context_pointer_set`

Patch by @craig_jones with edits by @blendify

Differential Revision: https://developer.blender.org/D2710

Merge branch 'master' into blender2.8

# Conflicts:
# source/blender/editors/transform/transform_snap_object.c

Another solution to bug T38358 and related

Moving the ray_start_local to the new position does not lose as much precision as moving the ray_org_local to the corresponding position.

The problem of inaccuracy is within the functions: `bvhtree_ray_cast_data_precalc` and` fast_ray_nearest_hit`. And not directly in the values of the rays.

Fix manipulator handles getting added each refresh

The same manipulator map handler would accumulate,
slowing down interactions.

Fix compilation error with Collada enabled

Merge branch 'master' into blender2.8

Fix strict compiler warning in BGE when linking directly to SDL

Fix function declaration of some modifiers

Those functions did not use evaluation context.

Also fixed lots of unused variables warnings caused by commented out code which
needs to be ported away from DerivedMesh and to evaluation context.

Depsgraph: Cleanup, remove unused function argument