Commit Graph

17 Commits

Author SHA1 Message Date
Hans Goudey
c9fb08e075 Merge branch 'blender-v3.0-release' 2021-11-16 14:55:13 -06:00
Brecht Van Lommel
cfd0e96e47 Fix T93125: Cycles wrong remaining render time with high number of samples
Avoid integer overflow.
2021-11-16 20:49:32 +01:00
Sergey Sharybin
ba6427adfa Merge branch 'blender-v3.0-release' 2021-11-16 17:25:48 +01:00
Sergey Sharybin
b3529ecf0e Fix CUDA error when using tiny border in viewport
Need to clamp scaled render buffers window to be above zero
when applying resolution divider.
2021-11-16 17:25:18 +01:00
Andrii
c63e735f6b Cycles: Add sample offset option
This patch exposes the sampling offset option to Blender. It is located in the "Sampling > Advanced" panel.
For example, this can be useful to parallelize rendering and distribute different chunks of samples for each computer to render.

---

I also had to add this option to `RenderWork` and `RenderScheduler` classes so that the sample count in the status string can be calculated correctly.

Reviewed By: leesonw

Differential Revision: https://developer.blender.org/D13086
2021-11-11 09:39:25 +01:00
Brecht Van Lommel
fd25e883e2 Cycles: remove prefix from source code file names
Remove prefix of filenames that is the same as the folder name. This used
to help when #includes were using individual files, but now they are always
relative to the cycles root directory and so the prefixes are redundant.

For patches and branches, git merge and rebase should be able to detect the
renames and move over code to the right file.
2021-10-26 15:37:04 +02:00
Brecht Van Lommel
d7d40745fa Cycles: changes to source code folders structure
* Split render/ into scene/ and session/. The scene/ folder now contains the
  scene and its nodes. The session/ folder contains the render session and
  associated data structures like drivers and render buffers.
* Move top level kernel headers into new folders kernel/camera/, kernel/film/,
  kernel/light/, kernel/sample/, kernel/util/
* Move integrator related kernel headers into kernel/integrator/
* Move OSL shaders from kernel/shaders/ to kernel/osl/shaders/

For patches and branches, git merge and rebase should be able to detect the
renames and move over code to the right file.
2021-10-26 15:36:39 +02:00
Sergey Sharybin
123255be6b Fix T91994: Cycles crash when rendering on multiple devices
The overscan change from D12599 lacked proper handling of window
when slicing buffer for multiple devices.
2021-10-07 15:07:25 +02:00
Sergey Sharybin
6e268a749f Fix adaptive sampling artifacts on tile boundaries
Implement an overscan support for tiles, so that adaptive sampling can
rely on the pixels neighbourhood.

Differential Revision: https://developer.blender.org/D12599
2021-10-05 16:19:14 +02:00
Brecht Van Lommel
1a134c4c30 Cycles: refactor API for render output
* Add OutputDriver, replacing function callbacks in Session.
* Add PathTraceTile, replacing tile access methods in Session.
* Add more detailed comments about how this driver should be implemented.
* Add OIIOOutputDriver for Cycles standalone to output an image.

Differential Revision: https://developer.blender.org/D12627
2021-09-30 20:53:27 +02:00
Brecht Van Lommel
a754e35198 Cycles: refactor API for GPU display
* Split GPUDisplay into two classes. PathTraceDisplay to implement the Cycles side,
  and DisplayDriver to implement the host application side. The DisplayDriver is now
  a fully abstract base class, embedded in the PathTraceDisplay.
* Move copy_pixels_to_texture implementation out of the host side into the Cycles side,
  since it can be implemented in terms of the texture buffer mapping.
* Move definition of DeviceGraphicsInteropDestination into display driver header, so
  that we do not need to expose private device headers in the public API.
* Add more detailed comments about how the DisplayDriver should be implemented.

The "driver" terminology might not be obvious, but is also used in other renderers.

Differential Revision: https://developer.blender.org/D12626
2021-09-30 20:48:08 +02:00
Brian Savery
044a77352f Cycles: add HIP device support for AMD GPUs
NOTE: this feature is not ready for user testing, and not yet enabled in daily
builds. It is being merged now for easier collaboration on development.

HIP is a heterogenous compute interface allowing C++ code to be executed on
GPUs similar to CUDA. It is intended to bring back AMD GPU rendering support
on Windows and Linux.

https://github.com/ROCm-Developer-Tools/HIP.

As of the time of writing, it should compile and run on Linux with existing
HIP compilers and driver runtimes. Publicly available compilers and drivers
for Windows will come later.

See task T91571 for more details on the current status and work remaining
to be done.

Credits:

Sayak Biswas (AMD)
Arya Rafii (AMD)
Brian Savery (AMD)

Differential Revision: https://developer.blender.org/D12578
2021-09-28 19:18:55 +02:00
Sergey Sharybin
728ae33f37 Cycles: Improve handling of tile file error
Expose them to the interface, and stop rendering as soon as possible.

Differential Revision: https://developer.blender.org/D12617
2021-09-28 16:58:27 +02:00
Campbell Barton
754d56dcc1 Cleanup: spelling in comments 2021-09-23 15:42:44 +10:00
Sergey Sharybin
9f6313498a Fix missing samples count pass when using tiles
Samples count pass is normalized to the overall number of samples.
This means that we need to store actual value of the samples in the
tile buffer file.

A bit annoying to pull all those settings to BufferParams and need
to find a more generic solution, but for now this is easiest and a
quickest solution.

Differential Revision: https://developer.blender.org/D12597
2021-09-22 15:07:55 +02:00
Campbell Barton
4d66cbd140 Cleanup: spelling in comments 2021-09-22 14:54:01 +10:00
Brecht Van Lommel
0803119725 Cycles: merge of cycles-x branch, a major update to the renderer
This includes much improved GPU rendering performance, viewport interactivity,
new shadow catcher, revamped sampling settings, subsurface scattering anisotropy,
new GPU volume sampling, improved PMJ sampling pattern, and more.

Some features have also been removed or changed, breaking backwards compatibility.
Including the removal of the OpenCL backend, for which alternatives are under
development.

Release notes and code docs:
https://wiki.blender.org/wiki/Reference/Release_Notes/3.0/Cycles
https://wiki.blender.org/wiki/Source/Render/Cycles

Credits:
* Sergey Sharybin
* Brecht Van Lommel
* Patrick Mours (OptiX backend)
* Christophe Hery (subsurface scattering anisotropy)
* William Leeson (PMJ sampling pattern)
* Alaska (various fixes and tweaks)
* Thomas Dinges (various fixes)

For the full commit history, see the cycles-x branch. This squashes together
all the changes since intermediate changes would often fail building or tests.

Ref T87839, T87837, T87836
Fixes T90734, T89353, T80267, T80267, T77185, T69800
2021-09-21 14:55:54 +02:00