Blender Git Loki

Set ignore subdivision to true

Ignore Subdivision: read UVs and attributes

UVs: only do one loop if the UVs are constant

UVs: set the attribute data properly

Cycles: Implement convergence and filtering kernels for CUDA

On user level this means that adaptive sampling works on CUDA.

Missing part for all devices is passes scaling at the end of render.
Need to look whether there is some smarter trick we can do.

Cycles: Remove hardcoded CUDA functions from CUDADevice

Use more dynamic and flexible CUDADeviceKernels.

Cycles: Move adaptive sampling convergence test to own kernel

This change makes it so the check is only done after all contribution
is known at the sample. It also makes it so path tracing kernel is
faster because it doesn't do per-bounce convergence test.

Makes it so that CPU samples distribution works similar to the
master branch.

The timing on CPU is way closer to the master branch, but more accurate
measurement with proper compilation flags is needed.

GPU adaptive sampling is temporarily broken.

Cycles: Better display update scheduling for adaptive sampling

Adaptive sampling forces maximum number of samples per render work in
order to have all filtering points to happen. On a simple scenes this
could lead to very often updates, which heavily degrades performance.

Now the rendering scheduler will ignore display updates if they happen
too often even in the case when adaptive sampling is used.

Cycles: More accurate time tracking for display update

Cycles: Refactor render buffer update in PathTrace

Do it as a part of update_display() part of the render work, which
allows to leave decision on when such update is needed to the work
scheduler.

Currently should be no functional changes.

Cycles: Move need display update check to own function

Currently no functional changes, but allows to have more elaborate
logic in its implementation now.

Cycles: Make display update concept more generic for scheduler

Just a variable naming.

The idea is to make it so communication of render result to Blender
for offline rendering more closely follows what is happening for the
viewport rendering.

Cycles: Disambiguate `delayed` variable

Cycles: Use better naming in RenderScheduler

No functional changes.

Cycles: Reduce overhead of GPUDIsplay update on CPU

Access KernelGlobals once, avoiding TLS access for every pixel of the
scanline.

Probably unmeasurable, but still nice to avoid unnecessary TLS access.

Merge branch 'master' into eevee-gpencil

Merge branch 'master' into temp-gpencil-bezier-stroke-type

Merge branch 'master' into greasepencil-object

Fix crash with denoising on CPU

Must use unaligned since the current denoising passes are not ensured to be
aligned like other passes.

Cleanup/Refactor: Use flags instead of bool to configure the snap gizmo

This simplifies the addition of future improvements.

Also make it more practical to expose as a parameter of gizmo for Python.