Blender Git Loki

Sculpt dyntopo

* Added a limited "fast draw" mode to pbvh drawing
that tries to limit data sent to the GPU.
- Facesets and mask data are disabled.
- Indexed mode is forced.
- Does not work (at all) for multires.

* Finally fixed some outstanding bmesh sculpt undo bugs:
- Forgot to mark pbvh nodes to update their bounds, which
produced a bug I had thought was caused by something else.
- Hopefully fixed a long-standing occasional memory corruption
bug.

Merge branch 'master' into soc-2021-curve-fillet

Sculpt dyntopo: fix various faceset init operator bugs
that crept in.

Merge branch 'master' into asset-greasepencil

Merge branch 'master' into soc-2021-vse-strip-thumbnails

Compositor: Enable can_be_constant on vector nodes

Compositor: Full frame Normalize node

Compositor: Full frame Normal node

Compositor: Full frame Map Value node

Compositor: Full frame Map Range node

Cycles X: remove diffusion / christensen-burley subsurface scattering

Only leaves Random Walk. It has not been decided yet if we will restore
diffusion, but for now remove it to avoid broken options in the UI.

Fix missing Noisy Image pass when using Denoising Data

Make logic consistent between Python and C++ code.

Cycles X: remove legacy Cubic and Gaussian SSS methods

Also some internal refactoring to not have a separate principled BSSRDF
closure, but rather set roughness to FLT_MAX if not using it.

Fix: transform matrix for drawing colliding walls on box shape

Made changes according to patch suggestions

Cleanup: split subsurface scatter function into two

Fix : Switching off overlay now turns off thumbnails also

Cleanup: Changed the place of non primitive collision shapes functions to draw_cache.c

Fix: Check for colliding faces after stepping through the simulation instead of in the draw engine

-This is a more accurate way to find colliding faces
-Store just the faces instead of the forces

Fix T87967: M2T video seeking is broken

Bug caused by integer overflow in ffmpeg_generic_seek_workaround().
Function max_ii() was used to limit int_64tvalue.

After fixing the issue there was another issue, where near-infinite loop
was caused by requested_pos being very large and stream being cut in a
way, that it was missing keyframe at beginning.
This was fixed by checking if we are reading beyond file content.

Reviewed By: zeddb

Differential Revision: https://developer.blender.org/D11888