CyclesProject
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Details

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

Bastien Montagne (mont29) assigned T56396: Cycles - Non-Deformation Motion Blur is inconsistant to Brecht Van Lommel (brecht).
Wed, Aug 15, 11:16 AM · Cycles, BF Blender
Carlo Andreacchio (candreacchio) added a comment to T56396: Cycles - Non-Deformation Motion Blur is inconsistant.

Issue is not present in rB78c2063685cb6e0d0bcb895cf4eb70686455d596
Issue is present in rBdb333d9ea4881d9f48e3cc4b1ec59b4dafb27cc0

Wed, Aug 15, 9:33 AM · Cycles, BF Blender
Carlo Andreacchio (candreacchio) added a comment to T56396: Cycles - Non-Deformation Motion Blur is inconsistant.

This was not the behaviour in rB7f86afec9d6

Wed, Aug 15, 9:01 AM · Cycles, BF Blender
Carlo Andreacchio (candreacchio) created T56396: Cycles - Non-Deformation Motion Blur is inconsistant.
Wed, Aug 15, 8:58 AM · Cycles, BF Blender
Lukas Stockner (lukasstockner97) added a dependent revision for D3538: Cycles: Added Cryptomatte passes.: D3607: Cycles: Implement render passes that contain all lighting from lights in a specified group.
Wed, Aug 15, 2:33 AM · Cycles
Lukas Stockner (lukasstockner97) added a dependent revision for D3538: Cycles: Added Cryptomatte passes.: D3606: Image Editor: Add option for showing a matte based on Cryptomatte render passes.
Wed, Aug 15, 12:10 AM · Cycles

Yesterday

Stefan Werner (swerner) closed T56359: Blender 2.8 Alpha 2 - GPU Rendering in Cycles Crashes with dual AMD WX 7100 card setup... as Resolved by committing rBa9700e7ad276: Fix T56359: Unitialized variable in Cycles OpenCL could cause crashes..
Tue, Aug 14, 10:52 PM · BF Blender: 2.8, Cycles, Rendering
Stefan Werner (swerner) claimed T56359: Blender 2.8 Alpha 2 - GPU Rendering in Cycles Crashes with dual AMD WX 7100 card setup....
Tue, Aug 14, 10:47 PM · BF Blender: 2.8, Cycles, Rendering
Lukas Stockner (lukasstockner97) added a comment to D3538: Cycles: Added Cryptomatte passes..

Some more inline comments.

Tue, Aug 14, 8:19 PM · Cycles
Brecht Van Lommel (brecht) closed T56357: Blender 2.79 (builder.blender.org) does not detect CUDA device with newer nvidia-drivers. as Archived.
Tue, Aug 14, 12:44 PM · Cycles, BF Blender: 2.8, BF Blender
Meino Cramer (mcq) added a comment to T56357: Blender 2.79 (builder.blender.org) does not detect CUDA device with newer nvidia-drivers..

Thanks for the link to CUDA-Z! Very helpful tool.
It is a system wide problem and not blender-related.
I passed this error to the GENTOO developer crew.
This task/ticket can closed.

Tue, Aug 14, 12:37 PM · Cycles, BF Blender: 2.8, BF Blender
Brecht Van Lommel (brecht) lowered the priority of T56357: Blender 2.79 (builder.blender.org) does not detect CUDA device with newer nvidia-drivers. from Normal to Incomplete.
Tue, Aug 14, 11:29 AM · Cycles, BF Blender: 2.8, BF Blender
Brecht Van Lommel (brecht) added a comment to T56357: Blender 2.79 (builder.blender.org) does not detect CUDA device with newer nvidia-drivers..

Please check:

  • If there is a separate package that needs to be installed for CUDA support.
  • If there exists a libcuda.so.1 or libcuda.so in your computer and where it is located.
Tue, Aug 14, 11:28 AM · Cycles, BF Blender: 2.8, BF Blender
Bastien Montagne (mont29) assigned T56355: bump map off/wrong for panoramic camera to Brecht Van Lommel (brecht).

Confirmed, @Brecht Van Lommel (brecht) not sure if that’s known limitation or actual bug?

Tue, Aug 14, 9:59 AM · Cycles, BF Blender
Yevgeny Makarov (jenkm) added a comment to T56363: Blender crash when deleting a curve object.

@Bastien Montagne (mont29) If you save the file, it will not crash anymore. You need to reproduce exactly this steps.

Tue, Aug 14, 9:40 AM · BF Blender
Bastien Montagne (mont29) triaged T56363: Blender crash when deleting a curve object as Incomplete priority.

Please follow our submission template and guidelines, also read these tips about bug reports, and make a complete, valid bug report, with required info, precise description of the issue (only ONE issue per report!), precise steps to reproduce it, small and simple .blend and/or other files to do so if needed, etc.

Tue, Aug 14, 9:35 AM · BF Blender
Bastien Montagne (mont29) assigned T56359: Blender 2.8 Alpha 2 - GPU Rendering in Cycles Crashes with dual AMD WX 7100 card setup... to Brecht Van Lommel (brecht).

@Brecht Van Lommel (brecht) after CUDA issues, OpenCL one…

Tue, Aug 14, 9:26 AM · BF Blender: 2.8, Cycles, Rendering
Bastien Montagne (mont29) assigned T56357: Blender 2.79 (builder.blender.org) does not detect CUDA device with newer nvidia-drivers. to Brecht Van Lommel (brecht).

@Brecht Van Lommel (brecht) I guess that one is for you? ;)

Tue, Aug 14, 9:19 AM · Cycles, BF Blender: 2.8, BF Blender
Yevgeny Makarov (jenkm) added a comment to T56363: Blender crash when deleting a curve object.

2.79.6 Win7 32

Tue, Aug 14, 7:22 AM · BF Blender
Riccardo Fasoli (fasoric) added a comment to T56363: Blender crash when deleting a curve object.

i tried and even on blender-2.80-0e8bd6ba8a2 crashes.

Tue, Aug 14, 1:13 AM · BF Blender
Paul McManus (PaulMc) created T56363: Blender crash when deleting a curve object.
Tue, Aug 14, 1:10 AM · BF Blender

Mon, Aug 13

Brandon Hix (Acolyte) renamed T56359: Blender 2.8 Alpha 2 - GPU Rendering in Cycles Crashes with dual AMD WX 7100 card setup... from GPU Rendering in Cycles Crashes with dual AMD WX 7100 card setup... to Blender 2.8 Alpha 2 - GPU Rendering in Cycles Crashes with dual AMD WX 7100 card setup....
Mon, Aug 13, 11:48 PM · BF Blender: 2.8, Cycles, Rendering
Brandon Hix (Acolyte) renamed T56359: Blender 2.8 Alpha 2 - GPU Rendering in Cycles Crashes with dual AMD WX 7100 card setup... from GPU Rendering in Cycles Crashes with dual WX 7100 card setup... to GPU Rendering in Cycles Crashes with dual AMD WX 7100 card setup....
Mon, Aug 13, 11:44 PM · BF Blender: 2.8, Cycles, Rendering
Brandon Hix (Acolyte) updated the task description for T56359: Blender 2.8 Alpha 2 - GPU Rendering in Cycles Crashes with dual AMD WX 7100 card setup....
Mon, Aug 13, 9:48 PM · BF Blender: 2.8, Cycles, Rendering
Brandon Hix (Acolyte) updated the task description for T56359: Blender 2.8 Alpha 2 - GPU Rendering in Cycles Crashes with dual AMD WX 7100 card setup....
Mon, Aug 13, 9:48 PM · BF Blender: 2.8, Cycles, Rendering
Brandon Hix (Acolyte) added projects to T56359: Blender 2.8 Alpha 2 - GPU Rendering in Cycles Crashes with dual AMD WX 7100 card setup...: Rendering, Cycles.
Mon, Aug 13, 9:46 PM · BF Blender: 2.8, Cycles, Rendering
Daniel Mikolajcak (dmiko) added a comment to T49431: Adaptive subdiv tears mesh apart along uv seams.

Hi guys,
some observations and wishes for microdisplacement.

  • I wish you could have continuous displacement even in flat shading, especially for quick set ups of walls etc. (I think Vray has this option)
  • the only workflow that does not rip geometry is smooth shading, subdivision to avoid artefacts, and box uv projection (3.)
  • UV unwrapping produces beautiful edges (4.) unless you place a UV seam which rips the geometry, This should be fixed easily since box projection (3.) projects different image portion on cube face too, but does not rip the geometry.
Mon, Aug 13, 7:12 PM · BF Blender, Cycles
Robert Moerland (rjm) renamed T56355: bump map off/wrong for panoramic camera from bump map off for panoramic camera to bump map off/wrong for panoramic camera.
Mon, Aug 13, 6:24 PM · Cycles, BF Blender
Robert Moerland (rjm) created T56355: bump map off/wrong for panoramic camera.
Mon, Aug 13, 6:24 PM · Cycles, BF Blender
Brecht Van Lommel (brecht) lowered the priority of T54180: Cycles Blender 2.8 tasks from Normal to Low.
Mon, Aug 13, 2:51 PM · Code Quest, BF Blender: 2.8, Cycles
Brecht Van Lommel (brecht) edited projects for T54696: Blender Internal displacement baking move to Cycles, added: Cycles; removed Code Quest.
Mon, Aug 13, 2:50 PM · Cycles
Brecht Van Lommel (brecht) edited projects for T54697: Vertex color baking for Cycles, added: Cycles; removed Code Quest.
Mon, Aug 13, 2:49 PM · Cycles
Stefan Werner (swerner) added a comment to T56234: Artifacts when render in Hybrid mode in version 2.8.

I'm seeing CUDA renders on macOS giving wrong results starting with rBd611cf923358 (determined via git bisect, MBP Retina, 15-inch, Late 2013, GeForce GT 750M, Xcode 9.2, CUDA 9.2). The code in rBd611cf923358 looks innocent to me, may be that commit just exposed a compiler bug on macOS?

Mon, Aug 13, 12:11 PM · Cycles, BF Blender
Brecht Van Lommel (brecht) moved T54656: Cycles/Eevee texture nodes for modifiers, painting and more from Tasks to Optional Targets on the Code Quest board.
Mon, Aug 13, 11:38 AM · Cycles, Code Quest
Drew Sikes (DTStheTDS) created T56343: 2.8/2.79 Bug: Glare Effect in Compositing Not Working with Transparency in Cycles/Eevee .
Mon, Aug 13, 4:37 AM · Compositing, BF Blender
Gabe E. Nydick (gnydick) added a comment to T55329: Multiple CUDA gpu are not being identified or used correctly.

I'm not sure why you can't do much, seems like blender isn't interacting with the cuda libraries to detect gpus. Can you explain more?

Mon, Aug 13, 1:01 AM · Cycles, BF Blender

Sat, Aug 11

ED (EDUART) added a comment to T56234: Artifacts when render in Hybrid mode in version 2.8.

Hi! Any thoughts on this one?

Sat, Aug 11, 1:53 PM · Cycles, BF Blender

Fri, Aug 10

Brecht Van Lommel (brecht) updated the task description for T54180: Cycles Blender 2.8 tasks.
Fri, Aug 10, 12:28 PM · Code Quest, BF Blender: 2.8, Cycles

Wed, Aug 8

Brecht Van Lommel (brecht) closed T56277: Layer weight node can't be baked as Archived.

Layer weight is a camera view dependent effect, and for baking we assume every pixel is being viewed head on. The corresponding layer weight value is 0.0, so the baking result is black.

Wed, Aug 8, 6:42 PM · Cycles, BF Blender
Serge Lyatin (SergeL) created T56277: Layer weight node can't be baked.
Wed, Aug 8, 5:56 PM · Cycles, BF Blender

Tue, Aug 7

Brecht Van Lommel (brecht) closed T56244: Doesnt render on GPU as Archived.

Thanks for testing, seems it was just running out of memory then.

Tue, Aug 7, 3:37 PM · Cycles, BF Blender

Mon, Aug 6

MK (tm9000) added a comment to T56244: Doesnt render on GPU.

i just found the problem:
the page file was too small (was set to 256MB), made it bigger and now it renders perfectly.

Mon, Aug 6, 9:46 PM · Cycles, BF Blender
MK (tm9000) added a comment to T56244: Doesnt render on GPU.

i tried to locate the object that is causing the issue.

Mon, Aug 6, 8:29 PM · Cycles, BF Blender
L. E. Segovia (amyspark) added a comment to T54796: GSoC 2018 project: Implementing a Hair Shader for Cycles.

Hey all,

Mon, Aug 6, 8:26 PM · Cycles
ED (EDUART) added a comment to T56234: Artifacts when render in Hybrid mode in version 2.8.

I am not strong in this kind of things)) can anyone on Mac try this one?

Mon, Aug 6, 3:36 PM · Cycles, BF Blender
Steffen Dünner (SteffenD) added a comment to T56234: Artifacts when render in Hybrid mode in version 2.8.

I just gave it another try. Both with 2.79 latest master and 2.80 latest. This time under Windows. No artefacts there as well. So it might be a Mac thing, maybe OpenCL related?!

Mon, Aug 6, 3:23 PM · Cycles, BF Blender
ED (EDUART) added a comment to T56234: Artifacts when render in Hybrid mode in version 2.8.

And also there is no artifacts if i render CPU only. Its only in Hybrid mode

Mon, Aug 6, 3:15 PM · Cycles, BF Blender
ED (EDUART) added a comment to T56234: Artifacts when render in Hybrid mode in version 2.8.

Yes, sorry its my fault about the material =( but when i correct this its also the same artifacts here in the latest version of 2.79((( and if i render this in older 2.79.4 version its ok, even with the mistake in the material! maybe this issue on Mac Os, because you said that you have Linux Mint

Mon, Aug 6, 3:13 PM · Cycles, BF Blender
s12a (s12a) added a comment to T56244: Doesnt render on GPU.

@Bastien Montagne (mont29)
Indeed what I'm seeing appears to be 2.8-specific. Sorry, this is probably a different bug.

Mon, Aug 6, 9:26 AM · Cycles, BF Blender
Bastien Montagne (mont29) assigned T56248: DDS Normal maps not rendering for certain DDS versions to Brecht Van Lommel (brecht).

That’s probably and OIIO library issue, @Brecht Van Lommel (brecht)?

Mon, Aug 6, 9:03 AM · Cycles, BF Blender