144 Commits

Author SHA1 Message Date
Brecht Van Lommel
6d25aad41f Cycles: Remove Alembic procedural
This was added for a fairly specialezed use case and is no longer being used
as far as we know. A future replacement would be to add a USD/Hydra procedural,
for which most of the groundwork already exists.

Pull Request: https://projects.blender.org/blender/blender/pulls/146021
2025-09-10 16:39:01 +02:00
Brecht Van Lommel
73fe848e07 Fix: Cycles log levels conflict with macros on some platforms
In particular DEBUG, but prefix all of them to be sure.

Pull Request: https://projects.blender.org/blender/blender/pulls/141749
2025-07-10 19:44:14 +02:00
Brecht Van Lommel
cf36acbc0c Refactor: Cycles: Replace remaining fprintf with logging
Pull Request: https://projects.blender.org/blender/blender/pulls/140244
2025-07-09 20:59:25 +02:00
Brecht Van Lommel
e394fd191b Refactor: Cycles: Sync various build fixes from the standalone repository
Pull Request: https://projects.blender.org/blender/blender/pulls/136576
2025-03-27 22:07:50 +01:00
Brecht Van Lommel
07b60c189b Cycles: Perform attribute subdivision on the host side
* Add SubdAttributeInterpolation class for linear attribute interpolation.
* Dicing computes ptex UV and face ID for interpolation.
* Simplify mesh storage of subd primitive counts
* Remove kernel code for subd attribute interpolation
* Remove patch table packing and upload

The old optimization adds a fair amount of complexity to the kernel, affecting
performance even when not using the feature. It's also not that useful as it
does not work for UVs that needs special interpolation. With this simpler code
it should be easier to make it feature complete.

Pull Request: https://projects.blender.org/blender/blender/pulls/135681
2025-03-11 20:58:07 +01:00
Lukas Stockner
39a6c222b2 Cycles: Split OSLManager out of OSLShaderManager
This is preparation for #129495.

Currently, all of OSL is managed by the OSLShaderManager. This makes it so that the general OSL setup is handled by a general OSLManager, and both the OSLShaderManager and (in the future) the Camera can use it to manage their scripts.

Pull Request: https://projects.blender.org/blender/blender/pulls/135050
2025-03-04 17:27:10 +01:00
Brecht Van Lommel
988c1798ac Refactor: Cycles: Replace new/delete with unique_ptr also for nodes
Using new unique_ptr_vector utility class.

Pull Request: https://projects.blender.org/blender/blender/pulls/132361
2025-01-03 10:23:32 +01:00
Brecht Van Lommel
9971648783 Refactor: Cycles: Replace new/delete by unique_ptr, in simple cases
Pull Request: https://projects.blender.org/blender/blender/pulls/132361
2025-01-03 10:23:30 +01:00
Brecht Van Lommel
57ff24cb99 Refactor: Cycles: Add const keyword to more function parameters
Pull Request: https://projects.blender.org/blender/blender/pulls/132361
2025-01-03 10:23:24 +01:00
Brecht Van Lommel
dd51c8660b Refactor: Cycles: Add const keyword where possible, using clang-tidy
Check was misc-const-correctness, combined with readability-isolate-declaration
as suggested by the docs.

Temporarily clang-format "QualifierAlignment: Left" was used to get consistency
with the prevailing order of keywords.

Pull Request: https://projects.blender.org/blender/blender/pulls/132361
2025-01-03 10:23:20 +01:00
Brecht Van Lommel
689633d802 Refactor: Cycles: Avoid unsafe memcpy and memcmp
Pull Request: https://projects.blender.org/blender/blender/pulls/132361
2025-01-03 10:23:15 +01:00
Brecht Van Lommel
d9150484a2 Cleanup: Cycles: Remove some unnecessary #if 0 and #if 1
Pull Request: https://projects.blender.org/blender/blender/pulls/132361
2025-01-03 10:23:09 +01:00
Brecht Van Lommel
60bec183cb Refactor: Cycles: Replace foreach() by range based for loops
Pull Request: https://projects.blender.org/blender/blender/pulls/132361
2025-01-03 10:23:05 +01:00
Brecht Van Lommel
d0c2e68e5f Refactor: Cycles: Automated clang-tidy fixups in Cycles
* Use .empty() and .data()
* Use nullptr instead of 0
* No else after return
* Simple class member initialization
* Add override for virtual methods
* Include C++ instead of C headers
* Remove some unused includes
* Use default constructors
* Always use braces
* Consistent names in definition and declaration
* Change typedef to using

Pull Request: https://projects.blender.org/blender/blender/pulls/132361
2025-01-03 10:22:55 +01:00
Brecht Van Lommel
5c46063607 Refactor: Cycles: Make kernel headers work by themselves
Shuffle around some code and add more includes so that individual
header files compile without errors.

Pull Request: https://projects.blender.org/blender/blender/pulls/132361
2025-01-03 10:22:50 +01:00
Brecht Van Lommel
3c2a6fbb9c Refactor: Cycles: Use nullptr instead of NULL
Pull Request: https://projects.blender.org/blender/blender/pulls/132361
2025-01-03 10:22:43 +01:00
howetuft
5e40dcc95d Cycles: Expose object node in XML API
The Object node is not currently exposed in the XML API, but rather
implicitly created along with Mesh nodes. This prevents accessing
features that are dependent on this node, like caustics settings.

Pull Request: https://projects.blender.org/blender/cycles/pulls/8
2024-06-26 20:39:03 +02:00
howetuft
dc35852107 Cycles: Expose vertex normals and tangent space attributes in XML API
The vertex normals and tangent space attributes are not currently exposed by
the XML API, in the Mesh node. This notably prevents the XML API user
from applying normal maps to meshes in tangent space.

To overcome this situation, this commit adds three attributes to the Mesh node:
N: vertex normals
tangent: tangents
tangent_sign: tangent signs

Nota: at the moment, these attributes are only available for non-subdivided
meshes.

Pull Request: https://projects.blender.org/blender/cycles/pulls/9
2024-06-26 20:39:02 +02:00
Campbell Barton
5b9740c913 Cleanup: use braces for sources in intern/
Omitted intern/itasc as some of these sources are from KDL:
https://www.orocos.org/kdl.html
2023-09-17 09:05:40 +10:00
Campbell Barton
c12994612b License headers: use SPDX-FileCopyrightText in intern/cycles 2023-06-14 16:53:23 +10:00
Charles Flèche
e7b1be52e0 Cycles: add Alembic procedural to Cycles standalone xml
Example:

<alembic filepath="/tmp/cube.abc" scale="1.45">
  <object path="/Cube/Cube" />
</alembic>

Differential Revision: https://developer.blender.org/D14391
2022-03-23 20:06:12 +01:00
Brecht Van Lommel
9cfc7967dd Cycles: use SPDX license headers
* Replace license text in headers with SPDX identifiers.
* Remove specific license info from outdated readme.txt, instead leave details
  to the source files.
* Add list of SPDX license identifiers used, and corresponding license texts.
* Update copyright dates while we're at it.

Ref D14069, T95597
2022-02-11 17:47:34 +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
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
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
Campbell Barton
f1e4903854 Cleanup: full sentences in comments, improve comment formatting 2021-06-26 21:50:48 +10:00
Brecht Van Lommel
68dd7617d7 Cycles: add utility functions for zero float2/float3/float4/transform
Ref D8237, T78710
2021-02-17 16:26:24 +01:00
Charles Flèche
76ab0381d1 Fix Cycles standalone compilation following API changes
The changes to the socket API were not applied to the standalone app.

Also modify Camera.compute_auto_viewplane() to use Camera.full_width and Camera.full_height as it is not possible to publicly access Camera.width and Camera.height anymore, so the aspect ratio could be computed with stale data.

Differential Revision: https://developer.blender.org/D9961
2021-01-26 14:39:32 +01:00
Stefan Werner
17cf500101 Cycles: Fixed Cycles standalone build.
The node refactor in 429afe0c62 was missing in the standalone code.
2020-09-01 14:13:17 +02:00
Dalai Felinto
2d1cce8331 Cleanup: make format after SortedIncludes change 2020-03-19 09:33:58 +01:00
Brecht Van Lommel
9910803574 Fix Cycles link error with debug + asan after RTTI changes 2020-03-11 17:05:15 +01:00
Brecht Van Lommel
d9c5f0d25f Cleanup: split Cycles Hair and Mesh classes, with Geometry base class 2020-02-07 12:18:15 +01:00
Brecht Van Lommel
ad489b7164 Cleanup: add type inheritance for Cycles nodes 2020-02-07 12:18:15 +01:00
Campbell Barton
108045faa0 ClangFormat: format '#if 0' code in intern/ 2019-04-17 08:17:13 +02:00
Campbell Barton
e12c08e8d1 ClangFormat: apply to source, most of intern
Apply clang format as proposed in T53211.

For details on usage and instructions for migrating branches
without conflicts, see:

https://wiki.blender.org/wiki/Tools/ClangFormat
2019-04-17 06:21:24 +02:00
Brecht Van Lommel
b2e2db94bd Fix T60379: Cycles viewport adaptive subdivision hangs after updates.
The camera world to raster computation was using wrong values. Also fixes
update when changing subdivision scene settings.
2019-04-04 21:22:31 +02:00
Stefan Werner
304a89eccf Cycles: Changed standalone XML parser to read UV as float2 2019-03-05 15:29:50 +01:00
Campbell Barton
1daa20ad9f Cleanup: strip trailing space for cycles 2018-07-06 10:17:58 +02:00
Brecht Van Lommel
b66efbecf4 Code refactor: make Transform always affine, dropping last row.
This save a little memory and copying in the kernel by storing only a 4x3
matrix instead of a 4x4 matrix. We already did this in a few places, and
those don't need to be special exceptions anymore now.
2018-03-10 04:54:05 +01:00
Brecht Van Lommel
b6fe80ca19 Fix Cycle standalone build. 2018-03-02 19:56:22 +01:00
Sergey Sharybin
8e1dd7ed81 Cycles: Remove unneeded include statements
Also try to move them from headers to implementation files as much as possible.
2018-01-19 15:19:45 +01:00
Sergey Sharybin
d1a761c4d4 Cycles: Fix compilation error of standalone application 2017-11-13 10:49:05 +01:00
Sergey Sharybin
db7a78a2be Cycles: Fix compilation error with latest OIIO
There was some changes about namespaces, which causes ambiguities.

Replaces using namespace with an explicit symbols we need. Is good idea to NOT
pull in the whole namespace anyway!
2017-11-10 10:04:33 +01:00
Sergey Sharybin
66ef0b8834 Cycles: Fix compilation error of app after the include directories change 2017-03-29 16:54:41 +02:00
Sergey Sharybin
14f6e27f6a Cycles: Cleanup, style 2017-01-13 15:24:56 +01:00
Brecht Van Lommel
111e2f5aba Fix T49904: Cycles standalone missing default generated texture coordinates. 2016-11-12 17:33:07 +01:00
Brecht Van Lommel
188ecee642 Fix T49985: cycles standalone using wrong socket names for XML reading. 2016-11-12 17:33:07 +01:00
Mai Lavelle
74bd809962 Cycles Standalone: Fix support for subdivision meshes
Changes from microdisplacement work broke previous support for subdivision
meshes, sometimes leading to crashes; this makes things work again. Files
that contain "patch" nodes will need to be updated to use meshes instead, as
specifying patches was both inefficient and completely unsupported by the new
subdivision code.
2016-08-24 10:39:00 -04:00
Mai Lavelle
4d1bf1472e Cycles Standalone: Fix building after microdisp changes 2016-08-10 14:08:13 -04:00