Blender Git Loki

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

SOC2021 Porting Modifiers To nodes all

This branch merges all branches from soc2021 porting modifiers to nodes
into one. The branche is mainly used to make a testbuild.

* BM_mesh_remap can now reorder loops
* Wrote yet another BKE_pbvh_reorder_bmesh function

Cleanup: Forces

Fix crash with Render Layers node after addition of Position pass

Fix black Combined pass when using Denoising Data passes

There is a conflict in the new passes code when having an identical Combined
and Noisy Image pass. For now leave out the Noisy Image pass in this case, it's
not obvious the extra memory and disk space usage is worth the convenience.

refactor procedure executor

cleanup

Fix: Incorrect acceleration. Store velocities of only the last substep, subtract previous velocity from current

Cycles X: abstract new GPU kernels to be less CUDA specific

With the idea of being able to reuse this for HIP and hopefully other devices.
Also cleans up compat.h for CUDA and OptiX a bit and makes them more consistent.

Cleanup: Constraints and panels

Cycles X: Use display pass directly from Film

Previously the display pass was used from the KernelFilm, which
requires a device update between display pass modification and GPU
display update. Such update is avoidable by using display pass from
film.

With the current state of the code should not be user level changes,
but this allows to have more instant display pass update when GPU
display is used for non-interactive rendering.

Possible improvement would be to separate display pass from node graph
so that change to film's display pass does not cause `device_update`.

Differential Revision: https://developer.blender.org/D12243

Fix Cycles X crash in volume scatter without lights

Check whether there is direct light in the scene before picking a light.

Differential Revision: https://developer.blender.org/D12257

Merge branch 'master' into asset-greasepencil

Merge branch 'master' into mf-procedure

initial evaluate curve node

cleanup

Version bump: 2.93.4-rc

fix use after free in socket inspection

For now I just evaluate constant fields immediately. The issue was that
parts of the fields was freed already when socket inspection runs.

initial sample mesh surface

This is a field based alternative for the attribute transfer node.
The main goal here is to experiment with how attribute transfer
should be done with fields.