Consider temporary directory to be variant part of session configuration
which gets communicated to the tile manager on render reset.
This allows to be able to render with one temp directory, change the
directory, render again and have proper render result even with enabled
persistent data.
For the ease of access to the temp directory expose it via the render
engine API (engine.temp_directory).
Differential Revision: https://developer.blender.org/D13790
The issue was caused by the recent changes in the way how the
render result is drawn: the display driver now could hold an
OpenGL resources. Those resources are not shared across contexts
so whenever OpenGL context is destroyed those resources are to
be destroyed as well (and not attempted to be re-used for a next
render).
Do such destruction and entire driver re-creation since it does
simplifies things from API usage point of view without causing
measurable slowdown.
Steps to reproduce the issue:
- Set the render resolution to 2x of Full HD
- Enable persistent data
- Render (F12)
- Render again
Observe OpenGL state being corrupted. Easy to see in debug mode
where IMM abstraction level reports issues about the buffer size
not being the proper size. This was caused by the display driver
trying to use VAO from the previous OpenGL context.
Differential Revision: https://developer.blender.org/D13789
Must take into account SD_OBJECT_TRANSFORM_APPLIED to determine if the normal
was already in world space.
Differential Revision: https://developer.blender.org/D13639
The root of the issue is caused by Cycles ignoring OpenGL limitation on
the maximum resolution of textures: Cycles was allocating texture of the
final render resolution. It was exceeding limitation on certain GPUs and
driver.
The idea is simple: use multiple textures for the display, each of which
will fit into OpenGL limitations.
There is some code which allows the display driver to know when to start
the new tile. Also added some code to allow force graphics interop to be
re-created. The latter one ended up not used in the final version of the
patch, but it might be helpful for other drivers implementation.
The tile size is limited to 8K now as it is the safest size for textures
on many GPUs and OpenGL drivers.
This is an updated fix with a workaround for freezing with the NVIDIA
driver on Linux.
Differential Revision: https://developer.blender.org/D13385
This patch fixes a couple of new Metal kernel compilation errors: 1) a kernel parameter count overflow, and 2) missing address space qualifiers.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D13763
No need for it now since all the threading queries and
scheduling is done via TBB.
Should be no functional changes as all the removed code
is supposed to be unused.
Query TBB for the maximum allowed concurrency, which is free from a bug
in own concurrency detection code. One thing to keep in mind is that now
Cycles is limited by the number of threads in the TBB areana from which
Session is created. This isn't a problem for Blender since we do not limit
arena on Blender side. Could be something to watch out for in other Cycles
integrations.
Differential Revision: https://developer.blender.org/D13658
Just disable these tests on macOS for now as fixing seems hard, and we want to
be able to cross-compile and test x86_64 on Arm machines on the buildbot.
Enables the `bpy.ops.cycles.denoise_animation()` operator again and modifies it to support
temporal denoising with OptiX. This requires renders that were done with both the "Vector"
and "Denoising Data" passes.
Differential Revision: https://developer.blender.org/D11442
This adds support to render PointCloud motion blur from a standard
"velocity" attribute.
This implementation is similar to that of the Mesh geometry, and
perhaps some code could be deduplicated through a more generic API.
`mesh_need_motion_attribute` was renamed `object_need_motion_attribute`
as it does not really require a mesh and moved to `util.h` so that
it can be shared.
This fixes T94622.
Reviewed By: brecht
Maniphest Tasks: T94622
Differential Revision: https://developer.blender.org/D13719
Occured because "PATH_RAY_SHADOW_CATCHER_BACKGROUND" is expressed as an unsigned
integer, because too large for a signed integer, but the "PathRayFlag" enum type defaulted to a
signed integer still.
This implements the design detailed in T92696 to support virtual
filenames for UDIM textures. Currently, the following 2 substitution
tokens are supported:
| Token | Meaning |
| ----- | ---- |
| <UDIM> | 1001 + u-tile + v-tile * 10 |
| <UVTILE> | Equivalent to u<u-tile + 1>_v<v-tile + 1> |
Example for u-tile of 3 and v-tile of 1:
filename.<UDIM>_ver0023.png --> filename.1014_ver0023.png
filename.<UVTILE>_ver0023.png --> filename.u4_v2_ver0023.png
For image loading, the existing workflow is unchanged. A user can select
one or more image files, belonging to one or more UDIM tile sets, and
have Blender load them all as it does today. Now the <UVTILE> format is
"guessed" just as the <UDIM> format was guessed before.
If guessing fails, the user can simply go into the Image Editor and type
the proper substitution in the filename. Once typing is complete,
Blender will reload the files and correctly fill the tiles. This
workflow is new as attempting to fix the guessing in current versions
did not really work, and the user was often stuck with a confusing
situation.
For image saving, the existing workflow is changed slightly. Currently,
when saving, a user has to be sure to type the filename of the first
tile (e.g. filename.1001.png) to save the entire UDIM set. The number
could differ if they start at a different tile etc. This is confusing.
Now, the user should type a filename containing the appropriate
substitution token. By default Blender will fill in a default name using
the <UDIM> token but the user is free to save out images using <UVTILE>
if they wish.
Differential Revision: https://developer.blender.org/D13057
This add support for rendering of the point cloud object in Blender, as a native
geometry type in Cycles that is more memory and time efficient than instancing
sphere meshes. This can be useful for rendering sand, water splashes, particles,
motion graphics, etc.
Points are currently always rendered as spheres, with backface culling. More
shapes are likely to be added later, but this is the most important one and can
be customized with shaders.
For CPU rendering the Embree primitive is used, for GPU there is our own
intersection code. Motion blur is suppored. Volumes inside points are not
currently supported.
Implemented with help from:
* Kévin Dietrich: Alembic procedural integration
* Patrick Mourse: OptiX integration
* Josh Whelchel: update for cycles-x changes
Ref T92573
Differential Revision: https://developer.blender.org/D9887
This replaces lost functionality from the old GN Attribute Map Range node.
This also adds vector support to the shader version of the node.
Notes:
This breaks forward compatibility as this node now uses data storage.
Reviewed By: HooglyBoogly, brecht
Differential Revision: https://developer.blender.org/D12760
This fixes crash T94022 when selecting live viewport render with both GPU & CPU devices selected. It is caused by incorrect `KernelBVHLayout` assignment. Similar to `BVH_LAYOUT_MULTI_OPTIX` for Optix, this patch adds a `BVH_LAYOUT_MULTI_METAL` to correctly redirect to the correct Metal BVH layout type.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D13561
This adds the remaining bits to enable Metal on macOS. There are still
performance optimizations and other improvements planned, but it should
now be ready for early testing.
This is currently only enabled on in Arm builds for M1 GPUs. It is not
yet working on AMD or Intel GPUs.
Ref T92212
Differential Revision: https://developer.blender.org/D13503
When rendering volume surfaces in unbounded worlds the volume stepping can produce large values. If used with a magic texture node the values can results in a Inf float which when used in a sin or cos produces a NaN.
To fix this the input values are mapped into the periodic range of the sin and cos functions (-2*PI 2*PI) this stops the possibility of a Inf occurring and thus the NaN. It also improves the accuracy and smoothness of the result due to loss of precision when large values are summed with smaller ones effectively removing the parts of the smaller number (i.e. those in the -2PI to 2PI range) that result in variation of the output of sin and cos.
Reviewed By: brecht
Maniphest Tasks: T92036
Differential Revision: https://developer.blender.org/D12821
Sample offset was not accounted for in the adaptive sampling code and caused
issues, like immediately applied adaptive filtering, with non-zero values.
Differential Revision: https://developer.blender.org/D13510
This patch adds support for merging images rendered with adaptive sampling to
the merge operator (which is currently only exposed in the Python API).
To do this an sample count buffer is created for each render layer from the
sample count pass if it exists, or from the metadata otherwise. This is then
used for averaging passes.
Differential Revision: https://developer.blender.org/D13457
Use structured binding and for-each loop, remove reduntant type casts, use
find_if instead of loop.
Differential Revision: https://developer.blender.org/D13456
Adds hysteresis to the resolution divider algorithm to avoid having the resolution bounce around when on the boundary of two resolutions.
Reviewed By: brecht, leesonw
Differential Revision: https://developer.blender.org/D12385
This patch suppresses OS version warnings and hides currently unsupported Metal GPUs when enumerating devices.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D13506
This reverts commit 5e37f70307.
It is leading to freezing of the entire desktop for a few seconds when stopping
3D viewport rendering on my Linux / NVIDIA system.
