When using `--cycles-resumable-num-chunks N` to render a subset of the
samples, having N close to the total number of samples causes rounding
issues.
For example, a file configured for 250 samples and 150 chunks should
have 1.6666 sample per chunk. The old code rounded this to 2 samples per
chunk, which would result in too many samples being rendered. When
rendering a single chunk this doesn't matter much, but when larger chunk
ranges are rendered with `--cycles-resumable-start-chunk` and
`--cycles-resumable-end-chunk` the rounding errors start to add up.
By multiplying with the number of chunks to render first, and only round
to integers after that, this issue is solved. In the above example,
rendering 3 chunks will correctly render 5 samples rather than 6.
When the requested number of chunks is larger than the number of samples
there will be duplicate samples (that is, sample N appearing both in
chunk M and M+1). In this case a warning is printed to stderr.
This is needed for T50977 Progressive render: use non-uniform sample
chunks.
Reviewed by: sergey
Differential Revision: https://developer.blender.org/D4282
We've had many reported crashes on Windows where we suspect there is a
corrupted OpenCL driver. The purpose here is to keep Blender generally
usable in such cases.
Now it always shows None / CUDA / OpenCL in the preferences, and only when
selecting one will it reveal if there are any GPUs available. This should
avoid crashes when opening the preferences or on startup.
Differential Revision: https://developer.blender.org/D4265
This is a quick workaround to prevent the crashes with multi-view.
The ultimate solution can be plenty, and would turn around refactoring
Cycles to handle multi-view internally, so that depsgraph could be freed
before render with no problems.
Reviewers: brecht, sergey
For the complete discussion check: https://developer.blender.org/D4239
The integrator maximum number of closures was not set properly for the CPU/mega
kernels to match the actual available memory. Before relatively recent code
refactoring we did not use this value in those kernels so it worked fine.
this can now be found in the sidebar View panel
- uses existing 'lock_camera_and_layers' but renames the property to
'use_local_camera'
- uses RNA_def_property_boolean_negative_sdna to flip the value
- remove the local view code in
rna_SpaceView3D_lock_camera_and_layers_set
- update Python code
- update Addons code will be separate commit
Fixes T60756
Reviewers: billreynish, brecht
Maniphest Tasks: T60756
Differential Revision: https://developer.blender.org/D4247
Even though it makes sense logically to have displacement actually displace
the mesh, this is causing a lot of confusion for existing users that are used
to the previous behavior. Further, since Eevee does not support displacement
yet and the discrepancy between the viewport and final render is problematic.
This fixes following errors:
- The code didn't work correctly for edges reconstructed by
the OpenSubdiv's topology refiner (due to indexing
difference).
- Sharpness of non-manifold and boundary edges was not
working correctly.
Xorg's XIWarpPointer doesn't support multi-head display while
XWarpPointer does.
Revert since this is a known TODO in Xorg and setting a custom
xinput matrix seems not to be used often.
Resolves T50383
Xorg's XIWarpPointer doesn't support multi-head display while
XWarpPointer does.
Revert since this is a known TODO in Xorg and setting a custom
xinput matrix seems not to be used often.
Resolves T50383
