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Steffen Dünner (SteffenD)
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User Since
May 24 2016, 1:39 PM (160 w, 2 d)

Recent Activity

May 8 2019

Steffen Dünner (SteffenD) updated the task description for T64326: Screw modifier on curves crash Blender 2.80.
May 8 2019, 8:33 PM · BF Blender
Steffen Dünner (SteffenD) created T64326: Screw modifier on curves crash Blender 2.80.
May 8 2019, 8:30 PM · BF Blender

May 5 2019

Steffen Dünner (SteffenD) created T64182: Bevel shader doesn't work with Embree.
May 5 2019, 10:06 PM · Cycles

Apr 23 2019

Steffen Dünner (SteffenD) added a comment to T63813: Saving images closes Blender.

Awesome! 👍

Apr 23 2019, 7:13 PM · BF Blender
Steffen Dünner (SteffenD) added a comment to T63813: Saving images closes Blender.

OK, did a complete rebuild from scratch and vc16 libs: same crash
And just a few minutes ago a fresh build from the Buildbot came out ( 5a144c797a3b ) and it also crashes on 2 different workstations (the one in the description above and a Threadripper 1950x machine with a GTX 1080, both running Win10 x64).

Apr 23 2019, 5:10 PM · BF Blender
Steffen Dünner (SteffenD) added a comment to T63813: Saving images closes Blender.

Thanks for having a look at it. Just in case it helps, this is what I get if I start and crash Blender from the command line:

Apr 23 2019, 1:32 PM · BF Blender
Steffen Dünner (SteffenD) added a comment to T63813: Saving images closes Blender.

In my case it's the default PNG, 8-bits, RGBA with 15% compression, but it reliably crashes with JPEG and no matter what settings I use.
I already tried loading the factory defaults first but to no avail.

Apr 23 2019, 12:44 PM · BF Blender
Steffen Dünner (SteffenD) created T63813: Saving images closes Blender.
Apr 23 2019, 11:29 AM · BF Blender

Apr 19 2019

Steffen Dünner (SteffenD) added a comment to T63716: Low Roughness Value on Glass Material Causes Artifacts with GPU+CPU Renders.

Confirmed here. Linux Mint 19.1, GTX 1080ti

Apr 19 2019, 12:47 AM · BF Blender

Apr 15 2019

Steffen Dünner (SteffenD) added a comment to T63632: EXR file rendered without Z pass comes out black.

I remember reporting something very similar some time ago: https://developer.blender.org/T61607

Apr 15 2019, 9:58 PM · BF Blender
Steffen Dünner (SteffenD) created T63631: Shift + Click in Image Editor crashes Blender.
Apr 15 2019, 9:47 PM · BF Blender
Steffen Dünner (SteffenD) awarded D4686: Adaptive Sampling for Cycles. a Love token.
Apr 15 2019, 3:52 PM

Apr 7 2019

Steffen Dünner (SteffenD) awarded rB42876e5f2de1: OpenVDB: Add Filters and CSG operations to the Level Set C API a Love token.
Apr 7 2019, 4:45 PM

Apr 5 2019

Steffen Dünner (SteffenD) created T63300: Solid + Texture crash Blender.
Apr 5 2019, 10:19 AM · BF Blender

Feb 16 2019

Steffen Dünner (SteffenD) added a comment to T61609: Weird clip start from 3d ortographic views.

I can confirm it on my side. Linux Mint 19.1 / GTX 1080ti. Very latest build of 2.80.

Feb 16 2019, 10:25 PM · BF Blender
Steffen Dünner (SteffenD) created T61607: Multilayer EXRs without Z channel give weird results.
Feb 16 2019, 2:33 PM · BF Blender

Feb 7 2019

Steffen Dünner (SteffenD) added a comment to T53341: Weird bug with Particle Instance Modifier.

OK, just tried it and it works. New dependency graph?

Feb 7 2019, 1:01 AM · Modifiers, Physics, Rendering, BF Blender
Steffen Dünner (SteffenD) added a comment to T53341: Weird bug with Particle Instance Modifier.

@Steffen Dünner (SteffenD), do you mind testing latest build from builder.blender.org?

Feb 7 2019, 12:06 AM · Modifiers, Physics, Rendering, BF Blender

Feb 4 2019

Steffen Dünner (SteffenD) added a comment to T61170: Eevee render engine is too buggy.

Have you tried loading the factory settings before? Might be an old startup.blend or preferences saved from an older version of 2.80.
It's also strange that your splash screen says "Branch: blender2.7" while a proper splash screen should look like this:

Feb 4 2019, 7:35 PM · BF Blender

Jan 25 2019

Steffen Dünner (SteffenD) awarded D4255: Cycles: Added feature overrides a Love token.
Jan 25 2019, 3:43 PM · Cycles

Jan 13 2019

Steffen Dünner (SteffenD) created T60468: GPU tiles no longer get denoised.
Jan 13 2019, 3:47 PM · BF Blender

Jan 6 2019

Steffen Dünner (SteffenD) added a watcher for Blender Studio: Steffen Dünner (SteffenD).
Jan 6 2019, 4:25 PM

Jan 4 2019

Steffen Dünner (SteffenD) added a comment to T60153: Blender Cloud Addon 1.11.0 Error Message.

Thanks for the quick help. Working perfectly now with 2.79 and 2.80 :)

Jan 4 2019, 1:58 PM · Infrastructure: Blender Cloud, Addons
Steffen Dünner (SteffenD) created T60153: Blender Cloud Addon 1.11.0 Error Message.
Jan 4 2019, 1:10 PM · Infrastructure: Blender Cloud, Addons

Dec 27 2018

Steffen Dünner (SteffenD) added a comment to T59899: Banding Issue.

Can you attach a PNG showing that problem? I have no problems here (2.79 and 2.80 no matter what version). I suspect it's an issue with your display driver (or its settings) or another piece of software that changes the display of images on your laptop.
Do the images @artem ivanov (ixd) posted look OK for you or do they also show banding?

Dec 27 2018, 5:10 PM · Cycles, Rendering, BF Blender: 2.8, Addons

Dec 20 2018

Steffen Dünner (SteffenD) added a comment to T59647: Multiresolution Subdivide Crash with render "Simplify" option.

OK, next step. It looks like it's not my user settings but my startup file that contains something that the Multiresolution modifier doesn't like.
If I load factory settings, all is OK. If I load factory settings and then manually load my startup.blend the crash is back...

Dec 20 2018, 3:16 PM · BF Blender
Steffen Dünner (SteffenD) added a comment to T59647: Multiresolution Subdivide Crash with render "Simplify" option.

Here's a debug output with the crash:

Dec 20 2018, 2:43 PM · BF Blender
Steffen Dünner (SteffenD) added a comment to T59647: Multiresolution Subdivide Crash with render "Simplify" option.

Hmm... for me it happens on 3 completely different computers, both with my own compile and the buildbot versions of 2.80.

Dec 20 2018, 2:31 PM · BF Blender
Steffen Dünner (SteffenD) created T59647: Multiresolution Subdivide Crash with render "Simplify" option.
Dec 20 2018, 1:24 AM · BF Blender

Dec 3 2018

Steffen Dünner (SteffenD) awarded T54987: Implement Multi-Object Properties Editing a Love token.
Dec 3 2018, 3:12 PM · User Interface
Steffen Dünner (SteffenD) added a comment to T54862: Multi-Object Properties Editing.

Oh I see. Thanks!

Dec 3 2018, 3:12 PM · Code Quest
Steffen Dünner (SteffenD) added a comment to T54862: Multi-Object Properties Editing.

This task is marked "Closed, Resolved" but the functionality is not yet inside 2.80. So is this still on the agenda?

Dec 3 2018, 3:06 PM · Code Quest

Nov 29 2018

Steffen Dünner (SteffenD) added a comment to T58183: Cycles combined CPU + GPU render crash.

Sorry, can't confirm your other crash problem

Nov 29 2018, 11:12 PM · Rendering, Cycles, BF Blender: 2.8
Steffen Dünner (SteffenD) added a comment to T58215: GPU compute crash .

Could be this? https://developer.blender.org/T58183

Nov 29 2018, 10:55 PM · Rendering, Cycles, BF Blender: 2.8
Steffen Dünner (SteffenD) added a comment to T58205: Blender closes/crash on Rendering .

Sounds a lot like this: https://developer.blender.org/T58183

Nov 29 2018, 10:46 PM · Cycles, BF Blender: 2.8, Rendering
Steffen Dünner (SteffenD) added a comment to T58183: Cycles combined CPU + GPU render crash.

OK, I think I'm onto something! :)

Nov 29 2018, 10:40 PM · Rendering, Cycles, BF Blender: 2.8

Nov 26 2018

Steffen Dünner (SteffenD) awarded D3900: Cycles: Add option to add an additional lobe to the GGX closure to correct for missing energy a Love token.
Nov 26 2018, 2:13 AM

Nov 21 2018

Steffen Dünner (SteffenD) awarded T54862: Multi-Object Properties Editing a Love token.
Nov 21 2018, 10:33 PM · Code Quest

Oct 29 2018

Steffen Dünner (SteffenD) added a comment to T57487: Crash with Cryptomatte.

Perhaps related/duplicate of T57485

Oct 29 2018, 9:03 PM · BF Blender
Steffen Dünner (SteffenD) added a comment to T57487: Crash with Cryptomatte.

Funny. I just compiled the very latest master (17d91bcb611b) and it doesn't crash this easily any more.
But it still crashes reliably in CPU mode with "Accurate Mode" off.
Blender 2.80 same thing.

Oct 29 2018, 1:48 PM · BF Blender
Steffen Dünner (SteffenD) created T57487: Crash with Cryptomatte.
Oct 29 2018, 1:38 PM · BF Blender

Oct 9 2018

Steffen Dünner (SteffenD) added a comment to T57109: Flickering artifacts in (animated) DOF areas.

Also happens under Linux Mint with a GTX 780 and with a Xeon / GTX 1080ti.

Oct 9 2018, 2:34 PM · Cycles, BF Blender
Steffen Dünner (SteffenD) added a comment to T57109: Flickering artifacts in (animated) DOF areas.

I gave it a closer look and my initial thought also was that the denoiser freaks out. When you disable the denoiser you can see that there's a lot of noise in the rendered image (where it would be a miracle if any denoiser could properly resolve that BTW). But: it's not the denoiser's fault because the flickering artifacts are already present in the "raw" render!
I could reduce the whole scene to only 3 Lego bricks (around the sink) which still gave me the error. The artifacts don't appear if I override all materials with a simple Principled shader. So it looks like the (quite complex) materials (or at least one of them) is faulty or maybe some bump or normal shader doesn't play nicely with a scaling of 0.001 the whole scene is at. Plus I think that setting the render camera limits to 1mm - 2km doesn't help numerical precision either.
It might also be a combination of things that cause this, but the Denoiser is innocent.

Oct 9 2018, 2:10 PM · Cycles, BF Blender

Sep 22 2018

Steffen Dünner (SteffenD) awarded D3712: Cloth: improved collisions a Love token.
Sep 22 2018, 12:14 AM · Physics, BF Blender: 2.8

Aug 31 2018

Steffen Dünner (SteffenD) awarded D3608: Cycles: Expose noisy image pass by default when rendering with denoiser a Love token.
Aug 31 2018, 12:08 AM

Aug 28 2018

Steffen Dünner (SteffenD) awarded D2388: Cycles: initial work to support motion blur from Alembic caches. a Love token.
Aug 28 2018, 1:37 PM · Alembic

Aug 22 2018

Steffen Dünner (SteffenD) awarded D1987: AO, Samples and Alpha Overrides a Love token.
Aug 22 2018, 11:30 AM · Cycles

Aug 6 2018

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?!

Aug 6 2018, 3:23 PM · Cycles, BF Blender

Aug 5 2018

Steffen Dünner (SteffenD) added a comment to T56234: Artifacts when render in Hybrid mode in version 2.8.

I guess the problem is not a bug in Cycles but rather a small mistake in your material:

Aug 5 2018, 4:45 PM · Cycles, BF Blender

Aug 3 2018

Steffen Dünner (SteffenD) awarded D3538: Cycles: Added Cryptomatte passes. a Love token.
Aug 3 2018, 10:08 PM · Cycles

Jun 6 2018

Steffen Dünner (SteffenD) added a comment to T55351: Sss gpu render speed degradation.

Depending on your hardware and the scene configuration you might need to fiddle a bit with the tile size to find the sweet spot.
In my case it's almost always 32x32 or 64x64 but that can vary. Like with your scene it's 16x16 although I didn't test 8x8.

Jun 6 2018, 5:04 PM · BF Blender
Steffen Dünner (SteffenD) added a comment to T55351: Sss gpu render speed degradation.

First question: Are you using "Hybrid" rendering in master?

Jun 6 2018, 4:35 PM · BF Blender

May 31 2018

Steffen Dünner (SteffenD) awarded T54951: Properties Editor Design a Love token.
May 31 2018, 9:34 PM · BF Blender: 2.8, User Interface, Code Quest

May 24 2018

Steffen Dünner (SteffenD) awarded D1543: Cycles: Add Support for IES files as textures for light strength a Love token.
May 24 2018, 1:08 AM

May 4 2018

Steffen Dünner (SteffenD) awarded D1973: Cycles: Use proper XYZ <-> Scene Linear conversion instead of assuming sRGB a Burninate token.
May 4 2018, 6:57 PM

Apr 20 2018

Steffen Dünner (SteffenD) awarded T54706: Property Override Design a Love token.
Apr 20 2018, 4:00 PM · Code Quest

Apr 17 2018

Steffen Dünner (SteffenD) added a watcher for Code Quest: Steffen Dünner (SteffenD).
Apr 17 2018, 11:49 PM

Mar 25 2018

Steffen Dünner (SteffenD) added a comment to T54420: Blender cycles volumetric rendering bug.

Hi there,

Mar 25 2018, 4:45 PM · Cycles

Mar 21 2018

Steffen Dünner (SteffenD) added a comment to T54388: Glass material and smooth shading generates unwanted dark area.

This is not a bug.

Mar 21 2018, 3:03 PM · BF Blender

Mar 14 2018

Steffen Dünner (SteffenD) created T54316: Problem with linked objects / texture coordinates.
Mar 14 2018, 11:27 AM · BF Blender

Feb 19 2018

Steffen Dünner (SteffenD) created T54105: Wrong shading with "Random Walk" in combination with branched path tracing.
Feb 19 2018, 5:37 PM · BF Blender

Feb 5 2018

Steffen Dünner (SteffenD) added a comment to T53513: Particle Size Weirdness.

After finishing the job that caused me to post this "bug report", I somehow lost sight of this ticket. But on second thought it might actually be worth to re-open it again for the exact reason that ronan mentioned.
Render size and simulation size should both be available but the render size should never affect the simulation. Quite the same as changing the instanced object or group doesn't affect the simulation. You should still be allowed to change render settings after caching a simulation.

Feb 5 2018, 6:58 PM · BF Blender

Jan 25 2018

Steffen Dünner (SteffenD) added a watcher for Libmv: Steffen Dünner (SteffenD).
Jan 25 2018, 2:43 PM
Steffen Dünner (SteffenD) added a comment to T53902: Packed Scene with Textures will be rendered wrong.

I don't know it this helps but if I open an image editor and manually set the color space of both the normal and the roughness maps to "Linear" instead of "sRGB" the packed version also renders fine.
Seems to ignore the non-color data setting of the image texture nodes.

Jan 25 2018, 12:17 PM · BF Blender

Jan 19 2018

Steffen Dünner (SteffenD) added a comment to T53839: .abc Loads On Ubuntu Fails To Load On Windows 7.

Well, here is what Houdini 16.5 says to the attached .abc file.

Jan 19 2018, 9:00 PM · Alembic, BF Blender

Jan 15 2018

Steffen Dünner (SteffenD) created T53789: Simple Deform giving different results since the new axis option was added.
Jan 15 2018, 1:46 PM · Modifiers, BF Blender

Jan 12 2018

Steffen Dünner (SteffenD) added a comment to T53767: Rendering with Volume Absorption aborts with CUDA Error.

Gave it 10 more tries, no crash. It also works reliably with the brand new "Transparent Glass" feature. :)

Jan 12 2018, 1:43 PM · Rendering, BF Blender
Steffen Dünner (SteffenD) added a comment to T53767: Rendering with Volume Absorption aborts with CUDA Error.

Last night it crashed for me (Linux Mint 18.3, 12GB RAM, GTX780 3GB), but now with the very current master it works:

Jan 12 2018, 1:02 PM · Rendering, BF Blender

Jan 11 2018

Steffen Dünner (SteffenD) added a comment to rBc621832d3d35: Cycles: CUDA support for rendering scenes that don't fit on GPU..

OK, I tried to reproduce my problem today with the very latest own build and couldn't reproduce it. I can now slowly but successfully render the benchmark scene on my +10 years old system with only 12GB of RAM and a GTX780 3GB (on Linux Mint that is).
I don't know what fixed it, but at least this is now working properly. Great work! :D

Jan 11 2018, 8:08 PM

Jan 4 2018

Steffen Dünner (SteffenD) added a comment to rBc621832d3d35: Cycles: CUDA support for rendering scenes that don't fit on GPU..

In my case it's not so easy I guess. I just gave it another try on my 10+ years old dual Xeon system with Linux Mint 18.3 and the very latest master of Blender (own compile).
It's just the Gooseberry benchmark scene switched to use GPU only. I also made sure to only use the GPU (GTX780 3GB) not the CPU or both.
The result is that it starts rendering although the scene would use more than twice the amount of GPU RAM. This is great.
The problem is that the final result is very very dark. I interrupted the rendering but here's a screenshot:

Jan 4 2018, 8:02 PM
Steffen Dünner (SteffenD) added a comment to rBc621832d3d35: Cycles: CUDA support for rendering scenes that don't fit on GPU..

I cant manage to get the Gooseberry benchmark to render.

Jan 4 2018, 2:42 PM

Dec 27 2017

Steffen Dünner (SteffenD) added a comment to T53597: CUDA error: Launch failed in cuCtxSynchronize(), line 1372 (SOLUTION: Changing some registry parameters. See the thread for solution details.).

I'm not at home at the moment so I can't help with testing stuff, but the TdrDelay issue affects almost any application using CUDA. Allegorithmic Substance Designer and Painter now even display warnings if they find default values in the registry and strongly advise you to change the settings accordingly.
Here's a helpful article on that https://support.allegorithmic.com/documentation/display/SPDOC/GPU+drivers+crash+with+long+computations

Dec 27 2017, 4:01 PM · BF Blender, Rendering, Cycles

Dec 20 2017

Steffen Dünner (SteffenD) added a comment to T53597: CUDA error: Launch failed in cuCtxSynchronize(), line 1372 (SOLUTION: Changing some registry parameters. See the thread for solution details.).

Hi Christoph,

Dec 20 2017, 5:10 PM · BF Blender, Rendering, Cycles

Dec 8 2017

Steffen Dünner (SteffenD) created T53513: Particle Size Weirdness.
Dec 8 2017, 2:58 PM · BF Blender

Nov 20 2017

Steffen Dünner (SteffenD) added a comment to T53341: Weird bug with Particle Instance Modifier.

Thanks, I actually had render crashes in this project, but it was too weird to reproduce easily. Also I am currently too swamped with work. Hopefully you can kill all these bugs ;)

Nov 20 2017, 11:20 AM · Modifiers, Physics, Rendering, BF Blender

Nov 18 2017

Steffen Dünner (SteffenD) updated the task description for T53341: Weird bug with Particle Instance Modifier.
Nov 18 2017, 1:36 AM · Modifiers, Physics, Rendering, BF Blender
Steffen Dünner (SteffenD) created T53341: Weird bug with Particle Instance Modifier.
Nov 18 2017, 1:27 AM · Modifiers, Physics, Rendering, BF Blender

Nov 13 2017

Steffen Dünner (SteffenD) created T53313: New Bevel shader darkens transparent materials.
Nov 13 2017, 5:34 PM · BF Blender

Nov 3 2017

Steffen Dünner (SteffenD) updated subscribers of T53247: Weird shading problems with the new CPU+GPU mixed mode.

@Brecht Van Lommel (brecht) You are a wizard! Thanks a lot!

Nov 3 2017, 8:52 PM · BF Blender
Steffen Dünner (SteffenD) created T53247: Weird shading problems with the new CPU+GPU mixed mode.
Nov 3 2017, 7:52 PM · BF Blender
Steffen Dünner (SteffenD) created T53243: No more UI feedback with animated channels, or disabled properties e.g..
Nov 3 2017, 2:20 PM · Animation, User Interface, BF Blender

Oct 24 2017

Steffen Dünner (SteffenD) added a comment to T53146: Memory consumption during rendering is no longer updated.

Awesome!

Oct 24 2017, 6:03 PM · BF Blender
Steffen Dünner (SteffenD) added a comment to T53146: Memory consumption during rendering is no longer updated.

I used the new CPU + GPU option in this case.

Oct 24 2017, 5:11 PM · BF Blender
Steffen Dünner (SteffenD) created T53146: Memory consumption during rendering is no longer updated.
Oct 24 2017, 3:17 PM · BF Blender

Oct 23 2017

Steffen Dünner (SteffenD) added a comment to T53134: Some tiles remain noisy with denoising in CPU+GPU render from master.

Confirmed here. Win10 x64, GTX1080Ti

Oct 23 2017, 5:47 PM · BF Blender

Oct 16 2017

Steffen Dünner (SteffenD) added a comment to T53087: save exr and tga get difference result.

This is perfectly normal and expected.

Oct 16 2017, 7:40 PM · BF Blender

Oct 9 2017

Steffen Dünner (SteffenD) renamed T53035: Switching to "Paint" closes Blender from Switching to "Paint" to Switching to "Paint" closes Blender.
Oct 9 2017, 3:43 PM · BF Blender
Steffen Dünner (SteffenD) created T53035: Switching to "Paint" closes Blender.
Oct 9 2017, 3:41 PM · BF Blender

Oct 7 2017

Steffen Dünner (SteffenD) added a comment to rB2d92988f6bc4: Cycles: CUDA bicubic and tricubic texture interpolation support..

Tiny comment:

Oct 7 2017, 9:10 PM

Sep 20 2017

Steffen Dünner (SteffenD) added a comment to T52851: Per-frame traking is broken.

Have you tried the latest Buildbot builds?
I had a similar bug that was fixed some time ago: https://developer.blender.org/T52479

Sep 20 2017, 4:23 PM · Motion Tracking, BF Blender

Sep 16 2017

Steffen Dünner (SteffenD) added a comment to T52781: Memleak (?) with Denoiser.

OIC, thanks for your fast response.

Sep 16 2017, 7:11 PM · BF Blender
Steffen Dünner (SteffenD) updated the task description for T52781: Memleak (?) with Denoiser.
Sep 16 2017, 5:36 PM · BF Blender
Steffen Dünner (SteffenD) updated the task description for T52781: Memleak (?) with Denoiser.
Sep 16 2017, 5:35 PM · BF Blender
Steffen Dünner (SteffenD) updated the task description for T52781: Memleak (?) with Denoiser.
Sep 16 2017, 5:35 PM · BF Blender
Steffen Dünner (SteffenD) created T52781: Memleak (?) with Denoiser.
Sep 16 2017, 3:54 PM · BF Blender

Sep 9 2017

Steffen Dünner (SteffenD) added a comment to T52687: Almost all fields for add nodes in compositor listed as "unknown".

Confirmed on my side.

Sep 9 2017, 1:00 PM · BF Blender
Steffen Dünner (SteffenD) added a comment to T52689: Regression: Compositing nodes are "Unknown".

Obviously a duplicate of https://developer.blender.org/T52687

Sep 9 2017, 12:59 PM · BF Blender
Steffen Dünner (SteffenD) created T52689: Regression: Compositing nodes are "Unknown".
Sep 9 2017, 11:45 AM · BF Blender

Sep 7 2017

Steffen Dünner (SteffenD) created T52675: Regression: Node Groups in comp crash Blender.
Sep 7 2017, 4:15 PM · BF Blender

Aug 29 2017

Steffen Dünner (SteffenD) added a comment to T52534: Compositing: Artefacts on tile borders when using filters.

Thanks for confirming this. Yes, it "works" when scaling first, but in my case all the filters were set to a specific look and I was about to start the playout for the final delivery of several shots in 4k when all of a sudden I noticed this bug.
In the end I started resizing all of the render pictures with Fusion.

Aug 29 2017, 12:28 PM · BF Blender