The callables generated by OSL reference other external functions
(defined in the OSL services module), in which case OptiX cannot
calculate the right stack size just based on the callable alone, it needs to
know all functions linked together in the pipeline to get to an accurate
result. `optixProgramGroupGetStackSize` has an optional pipeline
argument for this purpose, so make use of that to ensure the correct
stack size is calculated.
Ref #122779
Pull Request: https://projects.blender.org/blender/blender/pulls/123368
This makes it more verbose, and a little clearer that devices prior to 8cx Gen3 are not supported in >=v4.0. It makes the error message from #113674 more prominent than just being printed to cout.
Spurred by an email I got from someone trying to run blender on a Surface Pro X, and getting the not very helpful (to old devices) error.
Pull Request: https://projects.blender.org/blender/blender/pulls/122732
The base-4 Owen scrambling hash needs a seed value that's somewhat random-
looking, so the default value of 0 causes problems. Hashing the input seed
avoids this.
To avoid changing the noise pattern in pre-4.2 scenes, this hash is only
applied to blue-noise patterns.
Pull Request: https://projects.blender.org/blender/blender/pulls/123274
This PR hooks up the vulkan backend with the render graph
for drawing. It can run Blender better than the previous
implementation so we also flipped it to be the default
implementation.
**Some highlights**
- Adds support for framebuffer load/store operations
- Adds support for framebuffer subpass transitions
- Fixes workbench shadows
- Performance is just below OpenGL performance when comparing
fps. But the screen feels more fluent when using complex
scenes.
- Current performance is without doing any optimizations so
will improve in the future.
- EEVEE will not crash but has artifacts and many parts that
require more work.
**Related to**
- #121648
- #118330
**Known Limitation**
- Similar to previous implementation resources can be freed when
still in use crashing Blender. This is typically the case when
playing back an animation or updating a material icon.
**Next steps**
- Remove old implementation
- Get EEVEE to work
- Fix double resource freeing
- Improve performance by identifying hotspots and change them
Pull Request: https://projects.blender.org/blender/blender/pulls/121787
`num_distribution` in `KernelIntegrator` has type `int`, which holds a
maximal value of 2147483647. However, when computing the distribution,
`size_t` is used, which can go beyond this value and result in a
negative value when converted to `int`.
This PR handles this case as an error, stops rendering and suggests
alternative solutions.
Also early return when `use_light_tree`. The block was there because
`num_distribution` was needed for light tree before bfd1836861.
Pull Request: https://projects.blender.org/blender/blender/pulls/123177
Extract
- Cycles denoiser enum.
- Extensions user preferences UI.
- Node operator poll message from new node function.
Improve
- Split "(Enabled|Disabled) on startup, overriding the preference."
into two messages.
Disambiguate
- "Add" when describing the action of adding something should use the
Operator context.
- "Dimensions", in noise textures.
- "Transform" as a noun, the matrix transform type of Geometry Nodes,
as opposed to the verb to move things in space.
- "Parent" as a noun or verb (the parent of an object, to parent an
object to another).
Some issues reported by Satoshi Yamasaki, deathblood, and Gabriel Gazzán.
Pull Request: https://projects.blender.org/blender/blender/pulls/122969
* Always define root directories in LIBDIR even when not needed,
to silence some warnings.
* Only show warnings about not finding libs when oneAPI is enabled.
* Prefix message for context.
Light linking was never working correctly in volume segment with light
tree, because `sd->object` was not assigned, thus
`light_link_receiver_nee(kg, sd)` always returned `OBJECT_NONE`, causing
the light tree sample to fail. This problem was revealed by fdc2962beb
since now the same light is used for volume segment and volume.
Also ensure we don't sample position on the light if sampling from
volume segment is failed, by setting `emitter_id` to `EMITTER_NONE` in
such cases.
Pull Request: https://projects.blender.org/blender/blender/pulls/122999
Since #118841 there are more cases where Cycles would check for the
graphics interop support. This could lead to a crash when graphics
interop functions are called without having active graphics context.
This change makes it so there is no graphics interop calls when doing
headless render. In order to achieve this the device creation is now
aware of the headless mode.
Pull Request: https://projects.blender.org/blender/blender/pulls/122844
Additional requirement is to have OpenImageDenoiser, and the devices
should not support OIDN denoiser.
Reproduced here in the studio with a system on Linux with either double
Quadro GP100 cards, and Limnux with Quadro 6000 + Quadro 6000 ADA.
The reason for the crash is that the find_best_device() might return
nullptr, and it was never checked.
Pull Request: https://projects.blender.org/blender/blender/pulls/122823
Currently, during baking each pixel stores a seed input that comes from the
Blender side. This is only needed for vertex color baking, however -
for regular image baking, we can just as well hash the pixel coordinates.
Therefore, we can save some memory (4 byte per pixel) by splitting the seed
info out into a separate pass and only storing it when needed.
Pull Request: https://projects.blender.org/blender/blender/pulls/122806
Previously, Cycles would render up to 4SPP during viewport navigation when
using reduced resolution, even when the overall number of samples was set
lower.
This causes problems with the blue-noise pattern, so ensure that the
number of samples is always clamped to the configured maximum.
