CyclesProject
ActivePublic

Properties

Description

What is Cycles?
Cycles is a ray tracing renderer focused on interactivity and ease of use, while still supporting many production features.

Contacts

Documentation
Manuals for both Artists and Developers are available.

Development
Cycles is officially under the Blender Foundation umbrella, and so is developed on developer.blender.org. Source code is available either as standalone repository or as bundled into Blender sources.

To clone Cycles together with blender please consult BF Blender project.

To clone Cycles source from stadalone repository as read-only use:

git clone git://git.blender.org/cycles.git

To clone as read-write (needs ssh key):

git clone git@git.blender.org:cycles.git

Browse code
Online browse of sources is available for:

Module Owners: @Brecht Van Lommel (brecht) @Thomas Dinges (dingto) @Sergey Sharybin (sergey)
Developer Members: @Lukas Stockner (lukasstockner97) @Mai Lavelle (maiself) @Dalai Felinto (dfelinto) @Stefan Werner (swerner) @Alexander Gavrilov (angavrilov) @Martijn Berger (juicyfruit) @Nathan Letwory (jesterking)
User Members: @Matt Heimlich (m9105826) @Marco G (marcog)

Recent Activity

Today

Julien DUROURE (julien) added a project to T51664: backfacing is wrong with curves in cycles: Cycles.
Tue, May 30, 10:44 AM · Cycles, BF Blender
Aaron Carlisle (Blendify) updated subscribers of T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build.

We are leaving GCN 1.0 behind because of various errors like this that we cannot fix. @Mai Lavelle (maiself) may wish to comment further is she would like.

Tue, May 30, 3:36 AM · OpenGL / Gfx, Cycles, BF Blender
Tom (vejn) added a comment to T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build.

No this is on the hardware level and not software so the GCN (Graphics Core Next) version will not change.
You can view what GCN a card is on https://en.wikipedia.org/wiki/List_of_AMD_graphics_processing_units

Tue, May 30, 2:33 AM · OpenGL / Gfx, Cycles, BF Blender
Aaron Carlisle (Blendify) added a comment to T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build.

No this is on the hardware level and not software so the GCN (Graphics Core Next) version will not change.
You can view what GCN a card is on https://en.wikipedia.org/wiki/List_of_AMD_graphics_processing_units

Tue, May 30, 2:21 AM · OpenGL / Gfx, Cycles, BF Blender
Tom (vejn) added a comment to T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build.

Coukd you leave the compatibility requirement for 7870?
Maybe someday AMD will change the drivers so that issue will be fixed. I have been writing the feedback to them often.

Tue, May 30, 2:12 AM · OpenGL / Gfx, Cycles, BF Blender
LazyDodo (LazyDodo) closed T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build as "Invalid".
Tue, May 30, 1:50 AM · OpenGL / Gfx, Cycles, BF Blender
Tom (vejn) reopened T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build as "Open".
Tue, May 30, 1:41 AM · OpenGL / Gfx, Cycles, BF Blender
Aaron Carlisle (Blendify) closed T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build as "Invalid".

The AMD HD 7870 is only a GCN 1.0 card for 2.79 we bumped our requirement to GCN 2.0. For the final release, these cards will not be selectable from the menu.

Tue, May 30, 1:41 AM · OpenGL / Gfx, Cycles, BF Blender
Tom (vejn) edited the description of T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build.
Tue, May 30, 1:37 AM · OpenGL / Gfx, Cycles, BF Blender
Tom (vejn) edited the description of T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build.
Tue, May 30, 1:36 AM · OpenGL / Gfx, Cycles, BF Blender
Tom (vejn) edited the description of T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build.
Tue, May 30, 1:35 AM · OpenGL / Gfx, Cycles, BF Blender
Tom (vejn) edited the description of T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build.
Tue, May 30, 1:34 AM · OpenGL / Gfx, Cycles, BF Blender
Tom (vejn) edited the description of T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build.
Tue, May 30, 1:30 AM · OpenGL / Gfx, Cycles, BF Blender
Tom (vejn) edited the description of T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build.
Tue, May 30, 1:25 AM · OpenGL / Gfx, Cycles, BF Blender
Tom (vejn) created T51659: OpenCL issue with AMD 7870 and B3D 2.78.5 build.
Tue, May 30, 1:24 AM · OpenGL / Gfx, Cycles, BF Blender

Yesterday

Caetano (Caetano) added a comment to D2689: add limitation info.

In the future make sure to wrap long lines to 120 characters.

Mon, May 29, 8:09 PM · Cycles, Documentation
Aaron Carlisle (Blendify) closed D2689: add limitation info by committing rBM3569: Add additional limitation info to cycles adaptive subdiv.
Mon, May 29, 1:47 AM · Cycles, Documentation
Aaron Carlisle (Blendify) added a comment to D2689: add limitation info.

Looks good will apply. In the future make sure to wrap long lines to 120 characters.

Mon, May 29, 1:39 AM · Cycles, Documentation

Sun, May 28

Caetano (Caetano) updated the diff for D2689: add limitation info.

Actually now I think this last behavior I added is not a limitation but how it's meant to be. We just have to know how to take advantage of it.
So I updated the diff to add a warning instead of a limitation (among changing some words and fixing some typos)

Sun, May 28, 3:08 PM · Cycles, Documentation
Caetano (Caetano) added a comment to D2689: add limitation info.
Sun, May 28, 3:02 PM · Cycles, Documentation

Sat, May 27

Bastien Montagne (mont29) closed T51542: Cycles nodes.cpp suggestion as "Invalid".

More than a week without reply. Due to the policy of the tracker archiving for until required info/data are provided.

Sat, May 27, 6:52 PM · Cycles
Bastien Montagne (mont29) closed T51634: Cycles Clamp Considerations as "Invalid".

Thanks for the suggestion, but we do not accept feature requests or suggestions on this tracker (use forums or bf-funboard ML for that).

Sat, May 27, 2:49 PM · Cycles, BF Blender
Aaron Carlisle (Blendify) accepted D2689: add limitation info.
Sat, May 27, 4:07 AM · Cycles, Documentation
Caetano (Caetano) added a comment to D2689: add limitation info.

Actually I would correct "mesh datablocks" to "object data" since it doesn't only apply to meshes but also curves, surfaces and text objects.

Sat, May 27, 12:26 AM · Cycles, Documentation
Caetano (Caetano) added a reviewer for D2689: add limitation info: Aaron Carlisle (Blendify).
Sat, May 27, 12:16 AM · Cycles, Documentation
Caetano (Caetano) updated the summary of D2689: add limitation info.
Sat, May 27, 12:12 AM · Cycles, Documentation
Caetano (Caetano) added a project to D2689: add limitation info: Cycles.
Sat, May 27, 12:04 AM · Cycles, Documentation

Fri, May 26

Chris Cook (CCook) changed Type from Bug to Design on T51634: Cycles Clamp Considerations.
Fri, May 26, 3:22 PM · Cycles, BF Blender
Chris Cook (CCook) created T51634: Cycles Clamp Considerations.
Fri, May 26, 1:43 PM · Cycles, BF Blender
Alex P (eneen) added a comment to T50458: Hosek/Wilkie sky model weird coloration.

I think it's related:
Luxrender currently has option for custom ground color, really nice feature for larger scenes where there is need to model plane to hide sky leaking from ground. It works independently to albedo.

Fri, May 26, 11:38 AM · Cycles, Rendering, BF Blender

Thu, May 25

Alan Taylor (skororu) closed T51606: Immediate crash when switching to rendered viewport shading, Cycles, Mac as "Resolved".
Thu, May 25, 9:23 AM · Platform: Mac OS X, Cycles, BF Blender
Mai Lavelle (maiself) closed T49465: Cycles OpenCL throws CL_INVALID_BUILD_OPTIONS on AMD R9 280x on Linux as "Invalid".

Closing for a few reasons:

Thu, May 25, 3:41 AM · Cycles, BF Blender
Mai Lavelle (maiself) merged T51442: Compiling OpenCL program base: CL_DEVICE_NOT_AVAILABLE into T49465: Cycles OpenCL throws CL_INVALID_BUILD_OPTIONS on AMD R9 280x on Linux.
Thu, May 25, 3:19 AM · Cycles, BF Blender

Wed, May 24

Alma Talp (AlmaTalp) added a comment to T51554: OpenCL render error with example.

BTW, have you tried with a former Blender version like 2.78a release (hash:e8299c8) on Win7 64 Pro and RX 480?

Wed, May 24, 10:31 PM · BF Blender, Cycles
LazyDodo (LazyDodo) closed T51579: Crash immediately while trying to Cycle-Render imported *.obj Objects from SILO as "Resolved".
Wed, May 24, 7:15 PM · Cycles, BF Blender
Martin (MEDT) added a comment to T51579: Crash immediately while trying to Cycle-Render imported *.obj Objects from SILO.

Yes!

Wed, May 24, 7:12 PM · Cycles, BF Blender
LazyDodo (LazyDodo) added a comment to T51579: Crash immediately while trying to Cycle-Render imported *.obj Objects from SILO.

so problem is fixed?

Wed, May 24, 6:55 PM · Cycles, BF Blender
Martin (MEDT) added a comment to T51579: Crash immediately while trying to Cycle-Render imported *.obj Objects from SILO.

@LazyDodo (LazyDodo)
What build do you want?
I just tested Blender
2.78 2017-05-23 15.27 7b25ffb
2.80 2017-05-23 16:39 eef9277
and it worked fine too.

Wed, May 24, 6:51 PM · Cycles, BF Blender
Alan Taylor (skororu) edited the description of T51606: Immediate crash when switching to rendered viewport shading, Cycles, Mac.
Wed, May 24, 12:18 PM · Platform: Mac OS X, Cycles, BF Blender
Alan Taylor (skororu) created T51606: Immediate crash when switching to rendered viewport shading, Cycles, Mac.
Wed, May 24, 12:17 PM · Platform: Mac OS X, Cycles, BF Blender
Pascal Schön (VanCantus) added a comment to T51589: Principled Subsurface Scattering, wrong shadow color.

For your other issue, I added a new Diff (D2685) which corrects it.

Wed, May 24, 8:45 AM · Cycles, BF Blender
Pascal Schön (VanCantus) added a comment to T51589: Principled Subsurface Scattering, wrong shadow color.

I added a fix for this problem. It was just a small problem for diffuse ancestors. Here I was setting the subsurface value to 0.0 which led to a principled diffuse shader closure call. Here the base color was used to evaluate the closure. I just needed to set the mixed color to base color in this case.

Wed, May 24, 7:51 AM · Cycles, BF Blender
Diffusion closed T51589: Principled Subsurface Scattering, wrong shadow color as "Resolved" by committing rBe20a33b89d75: Fix T51589: Principled Subsurface Scattering, wrong shadow color.
Wed, May 24, 7:47 AM · Cycles, BF Blender
Jakub Vondra (wondrs) removed a watcher for Cycles: Jakub Vondra (wondrs).
Wed, May 24, 2:17 AM

Tue, May 23

daniel (midan) added a comment to T43835: strange cracks appear on model.

the problem still occurs in latest build 9b29233

Tue, May 23, 6:22 PM · Cycles, BF Blender

Mon, May 22

LazyDodo (LazyDodo) added a comment to T51579: Crash immediately while trying to Cycle-Render imported *.obj Objects from SILO.

so 2.78c is fine, but the builds from builder.blender.org crash?

Mon, May 22, 11:39 PM · Cycles, BF Blender
Martin (MEDT) added a comment to T51579: Crash immediately while trying to Cycle-Render imported *.obj Objects from SILO.

The latest stable release renders.

Mon, May 22, 8:11 PM · Cycles, BF Blender
Sergey Sharybin (sergey) added a comment to T51579: Crash immediately while trying to Cycle-Render imported *.obj Objects from SILO.

Please don't mix multiple reports into a single one, reports unrelated issues as separate reports. Otherwise things runs out of control quite quick.

Mon, May 22, 7:54 PM · Cycles, BF Blender
Martin (MEDT) added a comment to T51579: Crash immediately while trying to Cycle-Render imported *.obj Objects from SILO.

I checked these objects and tried to delete all their vertices with blender.
But some vertices are not deleteable!
But now, with these undeleteable vertices it is possible to render.

Mon, May 22, 7:41 PM · Cycles, BF Blender
Martin (MEDT) added a comment to T51579: Crash immediately while trying to Cycle-Render imported *.obj Objects from SILO.

Now it is the second bug I got with my GTX 1070. ( The first one: Unable to render volumetics T50808)
Is there still a problem with the card drivers? Should I contact NVIDIA?
What is the difference between Luxrender, Blender Render and Cycles - CUDA?

Mon, May 22, 6:32 PM · Cycles, BF Blender