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CyclesProject
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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) @Sergey Sharybin (sergey)
Developer Members: @Lukas Stockner (lukasstockner97) @Stefan Werner (swerner) @Mai Lavelle (maiself)

Recent Activity

Yesterday

Philipp Oeser (lichtwerk) added a project to T67718: Point density texture crashes: Cycles.
Wed, Aug 21, 9:42 PM · Cycles, BF Blender
Philipp Oeser (lichtwerk) added a project to T67724: Textures on metaballs have different scale in Eevee and Cycles: Cycles.
Wed, Aug 21, 9:41 PM · Cycles, BF Blender
Foxner (Foxner) updated the task description for T69005: Cycles crashes and doesn't work until Blender is restarted..
Wed, Aug 21, 8:51 PM · Cycles, Rendering, BF Blender
Philipp Oeser (lichtwerk) added projects to T69005: Cycles crashes and doesn't work until Blender is restarted.: Rendering, Cycles.
Wed, Aug 21, 8:49 PM · Cycles, Rendering, BF Blender
Omar Ahmad (OmarSquircleArt) updated the task description for T68823: GSoC 2019 - Cycles/EEVEE Improvements.
Wed, Aug 21, 8:33 PM · Nodes, Rendering, Cycles, BF Blender
Patrick Mours (pmoursnv) added a comment to D5363: Add OptiX device implementation to Cycles.

Cleaned up some unnecessary changes

Wed, Aug 21, 5:59 PM · Cycles
Omar Ahmad (OmarSquircleArt) updated the task description for T68823: GSoC 2019 - Cycles/EEVEE Improvements.
Wed, Aug 21, 5:34 PM · Nodes, Rendering, Cycles, BF Blender
Patrick Mours (pmoursnv) added a comment to D5363: Add OptiX device implementation to Cycles.

@Michael March (cowmix): Yes, drivers >= 435.80 will work.

Wed, Aug 21, 5:03 PM · Cycles
Omar Ahmad (OmarSquircleArt) updated the task description for T68823: GSoC 2019 - Cycles/EEVEE Improvements.
Wed, Aug 21, 1:57 PM · Nodes, Rendering, Cycles, BF Blender
dark999 (dark999) added a comment to T68866: Blender crashes - tile size.

IMO internal GPU problem as memory or maybe too data to elaborate or so, however this is not a forum or chat, this is a Bug Tracker.
To make some chat Blender related ,you can use https://blender.chat/home #support or #today channel for technical discussions you can go in https://devtalk.blender.org/

Wed, Aug 21, 1:44 PM · Rendering, Cycles, BF Blender
Andrej Karol (mar-k-lar) added a comment to T68866: Blender crashes - tile size.

oh, didnt realise that, my bad, thank you for your help. yet I would still like to know what causes the error... is it memory issue than? just curious...

Wed, Aug 21, 12:20 PM · Rendering, Cycles, BF Blender
dark999 (dark999) added a comment to T68866: Blender crashes - tile size.

your link is 2 year old and is related to Cycles to Rhino, Cycles had have a lot of improvement untill today, best tile size for Cycles in Blender depend on many parameter, for my porpuse best render tile size is 64 and my Workstation never had crash related to this render tile size

Wed, Aug 21, 11:44 AM · Rendering, Cycles, BF Blender
Andrej Karol (mar-k-lar) added a comment to T68866: Blender crashes - tile size.

because I found this: https://discourse.mcneel.com/t/cycles-finding-the-optimal-tile-size/42276

Wed, Aug 21, 10:51 AM · Rendering, Cycles, BF Blender
Brecht Van Lommel (brecht) updated the task description for T66305: Render & Cycles Module.
Wed, Aug 21, 12:57 AM · Cycles, Rendering, BF Blender
Brecht Van Lommel (brecht) added a comment to T68914: Cycles adaptive subdivision.

Let's use that one instead.

Wed, Aug 21, 12:56 AM · Cycles, BF Blender
Brecht Van Lommel (brecht) merged T68914: Cycles adaptive subdivision into T53901: Cycles adaptive subdivision tasks.
Wed, Aug 21, 12:55 AM · Cycles
Brecht Van Lommel (brecht) merged task T68914: Cycles adaptive subdivision into T53901: Cycles adaptive subdivision tasks.
Wed, Aug 21, 12:55 AM · Cycles, BF Blender
Brecht Van Lommel (brecht) renamed T53901: Cycles adaptive subdivision tasks from Cycles microdisplacement tasks to Cycles adaptive subdivision tasks.
Wed, Aug 21, 12:54 AM · Cycles
Mai Lavelle (maiself) added a comment to T68914: Cycles adaptive subdivision.

Some existing related tasks: T53901

Wed, Aug 21, 12:21 AM · Cycles, BF Blender
Brecht Van Lommel (brecht) added a project to T68914: Cycles adaptive subdivision: Cycles.
Wed, Aug 21, 12:14 AM · Cycles, BF Blender

Tue, Aug 20

Maciej Jutrzenka (Kramon) added a comment to T66305: Render & Cycles Module.
Tue, Aug 20, 10:36 PM · Cycles, Rendering, BF Blender
Dalai Felinto (dfelinto) updated the task description for T66305: Render & Cycles Module.
Tue, Aug 20, 9:40 PM · Cycles, Rendering, BF Blender
Dalai Felinto (dfelinto) created T68923: Vertex color baking with Cycles.
Tue, Aug 20, 9:33 PM · Cycles, BF Blender
Dalai Felinto (dfelinto) created T68922: Displacement baking with Cycles.
Tue, Aug 20, 9:32 PM · Cycles, BF Blender
Dalai Felinto (dfelinto) created T68920: Reduce shadow terminator artifacts.
Tue, Aug 20, 9:30 PM · Cycles, BF Blender
Dalai Felinto (dfelinto) created T68919: Scrambling distance.
Tue, Aug 20, 9:28 PM · Cycles, BF Blender
Dalai Felinto (dfelinto) created T68918: Blue noise dithering.
Tue, Aug 20, 9:28 PM · Cycles, BF Blender
Dalai Felinto (dfelinto) created T68917: Texture cache and mipmaps.
Tue, Aug 20, 9:27 PM · Cycles, BF Blender
Dalai Felinto (dfelinto) created T68916: Many light sampling.
Tue, Aug 20, 9:25 PM · Cycles, BF Blender
Dalai Felinto (dfelinto) renamed T68915: Light groups from Light group to Light groups.
Tue, Aug 20, 9:24 PM · Cycles, BF Blender
Dalai Felinto (dfelinto) created T68915: Light groups.
Tue, Aug 20, 9:24 PM · Cycles, BF Blender
Omar Ahmad (OmarSquircleArt) updated the task description for T68823: GSoC 2019 - Cycles/EEVEE Improvements.
Tue, Aug 20, 6:35 PM · Nodes, Rendering, Cycles, BF Blender
Sybren A. Stüvel (sybren) added a comment to T49234: Alembic Import issues.

@Kévin Dietrich (kevindietrich) I suspected as much. Thanks for confirming ;-)

Tue, Aug 20, 5:58 PM · Alembic, Cycles, Import/Export, BF Blender
Dalai Felinto (dfelinto) updated the task description for T66305: Render & Cycles Module.
Tue, Aug 20, 5:28 PM · Cycles, Rendering, BF Blender
Michael March (cowmix) added a comment to D5363: Add OptiX device implementation to Cycles.

The instructions reference the pre-release drivers.

Tue, Aug 20, 4:08 PM · Cycles
Philipp Oeser (lichtwerk) added projects to T68866: Blender crashes - tile size: Cycles, Rendering.
Tue, Aug 20, 2:32 PM · Rendering, Cycles, BF Blender
Kévin Dietrich (kevindietrich) added a comment to T49234: Alembic Import issues.

@Sybren A. Stüvel (sybren), sorry for the late response but I am not actively working on anything Blender related at the moment.

Tue, Aug 20, 12:16 PM · Alembic, Cycles, Import/Export, BF Blender

Mon, Aug 19

Charlie Jolly (charlie) added a comment to D3789: Cycles & Eevee Vector Rotate Node: Standalone node with access to XYZ sockets..

Missed one function name in last changes

Mon, Aug 19, 7:45 PM · Nodes, Eevee, Cycles
Charlie Jolly (charlie) added a comment to D3789: Cycles & Eevee Vector Rotate Node: Standalone node with access to XYZ sockets..

Variable renaming for better readability

Mon, Aug 19, 7:40 PM · Nodes, Eevee, Cycles
Charlie Jolly (charlie) added a comment to D3789: Cycles & Eevee Vector Rotate Node: Standalone node with access to XYZ sockets..

Rename and tidy up with comments from @Omar Ahmad (OmarSquircleArt)

Mon, Aug 19, 6:43 PM · Nodes, Eevee, Cycles
Omar Ahmad (OmarSquircleArt) added inline comments to D3789: Cycles & Eevee Vector Rotate Node: Standalone node with access to XYZ sockets..
Mon, Aug 19, 6:01 PM · Nodes, Eevee, Cycles
Charlie Jolly (charlie) added a comment to D3789: Cycles & Eevee Vector Rotate Node: Standalone node with access to XYZ sockets..
Mon, Aug 19, 4:57 PM · Nodes, Eevee, Cycles
Charlie Jolly (charlie) added a comment to D3789: Cycles & Eevee Vector Rotate Node: Standalone node with access to XYZ sockets..

Change XYZ sockets to a single vector socket

Mon, Aug 19, 4:57 PM · Nodes, Eevee, Cycles
Philipp Oeser (lichtwerk) added projects to T68808: Multiple CPU cores limited to 60 on blender 2.80?: Cycles, Rendering.
Mon, Aug 19, 3:02 PM · Rendering, Cycles, BF Blender
Philipp Oeser (lichtwerk) added projects to T68809: Cycles segfaults with ROCm OpenCL: Cycles, Rendering.
Mon, Aug 19, 3:01 PM · Rendering, Cycles, BF Blender
Omar Ahmad (OmarSquircleArt) updated the task description for T68823: GSoC 2019 - Cycles/EEVEE Improvements.
Mon, Aug 19, 2:34 PM · Nodes, Rendering, Cycles, BF Blender
michael campbell (3di) added a comment to T68823: GSoC 2019 - Cycles/EEVEE Improvements.

As EEVEE doesnt support object motion blur, a vector pass would also be a great addition to EEVEE if possible. Would save having to render each frame twice (once in eevee and once in cycles for the vector pass).

Mon, Aug 19, 2:33 PM · Nodes, Rendering, Cycles, BF Blender
Omar Ahmad (OmarSquircleArt) created T68823: GSoC 2019 - Cycles/EEVEE Improvements.
Mon, Aug 19, 1:35 PM · Nodes, Rendering, Cycles, BF Blender

Fri, Aug 16

Brecht Van Lommel (brecht) closed T55054: Cyles: TextureInterpolator Undefined linker behavior - performance regression. as Resolved by committing rBea8e0df67271: Fix T55054: possible use of unsupported instructions in Cycles texture code.
Fri, Aug 16, 4:49 PM · BF Blender: Regressions, Cycles
Patrick Mours (pmoursnv) added a comment to D5363: Add OptiX device implementation to Cycles.

Fixed modified branched connect to light functions

Fri, Aug 16, 4:28 PM · Cycles