Michael Klein (Renderbricks)
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User Since
Mar 10 2017, 7:13 PM (27 w, 4 d)

Recent Activity

Mon, Sep 4

Michael Klein (Renderbricks) added a comment to T52625: CPU render will look different to GPU render and fails randomly.

You can remove the bevel node on those materials if you want to verify it. To me it looks like specular highlights from bevel blurred by depth of field, which can be quite noisy.

Mon, Sep 4, 1:52 PM · Cycles

Sun, Sep 3

Michael Klein (Renderbricks) added a comment to T52625: CPU render will look different to GPU render and fails randomly.

From profiling this looks like a performance issue with the OpenImageIO texture cache and .hdr files, the workaround would be to save the background image texture as a .exr file.

The render differences look like they're just bevel differences, there can also be some differences in image texture filtering when rendering with OSL.

Sun, Sep 3, 10:36 AM · Cycles
Michael Klein (Renderbricks) added a comment to T52625: CPU render will look different to GPU render and fails randomly.

CPU vs GPU.

Sun, Sep 3, 12:34 AM · Cycles
Michael Klein (Renderbricks) added a comment to T52625: CPU render will look different to GPU render and fails randomly.

Render on cpu:
Start normal, didn't finish because of the long render time it would naturally a 2K image would take, so i canceled the render.
Render on Gpu:
Starts and renders and denoises, there is evident difference on the edges but couldn't notice anything particularly different.

Maybe a developer notice it right away or maybe a simpler smaller example its needed to test, not sure.

Sun, Sep 3, 12:09 AM · Cycles

Sat, Sep 2

Michael Klein (Renderbricks) edited the description of T52625: CPU render will look different to GPU render and fails randomly.
Sat, Sep 2, 4:33 PM · Cycles
Michael Klein (Renderbricks) edited the description of T52625: CPU render will look different to GPU render and fails randomly.
Sat, Sep 2, 4:28 PM · Cycles
Michael Klein (Renderbricks) created T52625: CPU render will look different to GPU render and fails randomly.
Sat, Sep 2, 4:27 PM · Cycles

Aug 12 2017

Michael Klein (Renderbricks) added a comment to T52360: CPU slow-downs extremely but speed-ups when moving render window.

OK. What I do now . I start the render and zoom in. When I zoom out the tiles slow down and the estimated render time is over 12 hours. When I zoom in at a maximum the tiles speed up and the estimated render time is now 5 hours. Looks like this is a fair workaround. :-)

Aug 12 2017, 12:49 PM · Cycles, BF Blender
Michael Klein (Renderbricks) added a comment to T52360: CPU slow-downs extremely but speed-ups when moving render window.

Hi Brecht,

Aug 12 2017, 12:19 PM · Cycles, BF Blender
Michael Klein (Renderbricks) added a comment to T52360: CPU slow-downs extremely but speed-ups when moving render window.

No. That's not the point. Watch my recoreded video and you will see that the speed of the tiles in the transparent areas slow-down extremely. When moving the window they start to render in an expected and correct speed. It's not correct that the tiles will take ages in the transparent area. The same issue you'll have randomly in the areas with geometry. When moving the window the rendering speeds up to the maximum speed. When minimizing the window the geometry area seems be rendered efficiently till it comes to the transparent area. The slow-downs and sometimes freezes of tiles is not normal.

Aug 12 2017, 11:31 AM · Cycles, BF Blender
Michael Klein (Renderbricks) renamed T52360: CPU slow-downs extremely but speed-ups when moving render window from "CPU slow-downs and speed-ups when moving render window" to "CPU slow-downs extremely but speed-ups when moving render window".
Aug 12 2017, 1:46 AM · Cycles, BF Blender
Michael Klein (Renderbricks) added a comment to T52360: CPU slow-downs extremely but speed-ups when moving render window.

Here's a video capture showing the issue:

Aug 12 2017, 1:35 AM · Cycles, BF Blender
Michael Klein (Renderbricks) created T52360: CPU slow-downs extremely but speed-ups when moving render window.
Aug 12 2017, 12:58 AM · Cycles, BF Blender

Aug 9 2017

Michael Klein (Renderbricks) added a comment to T52275: Denoiser will blur sharp reflections.

I found an interim solution by using Branched Path Tracing. This looks much better. I could also set just Glossy higher and turn Indirect off in the Denoiser. But just using Branched works good actually.

Aug 9 2017, 7:09 PM · Cycles, BF Blender
Michael Klein (Renderbricks) added a comment to T52275: Denoiser will blur sharp reflections.

Metallic and black color (no diffuse) is working fine. Specular and SSS with more diffuse will cause a blurred result.

Aug 9 2017, 1:56 PM · Cycles, BF Blender
Michael Klein (Renderbricks) added a comment to T52275: Denoiser will blur sharp reflections.

Hello Lukas,

Aug 9 2017, 1:49 PM · Cycles, BF Blender

Aug 7 2017

Michael Klein (Renderbricks) added a comment to T52275: Denoiser will blur sharp reflections.

Thanks for your detailed answer. I rated this as a bug because the floor reflection is correctly sharp while the wall reflection is sharp in the render progress and will be blurred extremely by the denoising what will falsify the result.

Aug 7 2017, 7:34 PM · Cycles, BF Blender
Michael Klein (Renderbricks) triaged T52275: Denoiser will blur sharp reflections as "High" priority.
Aug 7 2017, 6:32 PM · Cycles, BF Blender

Aug 6 2017

Michael Klein (Renderbricks) added a project to T52275: Denoiser will blur sharp reflections: Rendering.
Aug 6 2017, 2:43 PM · Cycles, BF Blender
Michael Klein (Renderbricks) edited the description of T52275: Denoiser will blur sharp reflections.
Aug 6 2017, 1:32 PM · Cycles, BF Blender
Michael Klein (Renderbricks) created T52275: Denoiser will blur sharp reflections.
Aug 6 2017, 1:12 PM · Cycles, BF Blender

Mar 20 2017

Michael Klein (Renderbricks) edited the description of T51006: Second report: FBX Export broken +++ all colors will be white.
Mar 20 2017, 1:30 PM · Addons
Michael Klein (Renderbricks) edited the description of T51006: Second report: FBX Export broken +++ all colors will be white.
Mar 20 2017, 1:30 PM · Addons
Michael Klein (Renderbricks) created T51006: Second report: FBX Export broken +++ all colors will be white.
Mar 20 2017, 1:29 PM · Addons

Mar 12 2017

Michael Klein (Renderbricks) added a comment to T50915: FBX Export broken +++ all colors will be white.

Mar 12 2017, 2:57 PM · Import/Export, Addons

Mar 10 2017

Michael Klein (Renderbricks) created T50915: FBX Export broken +++ all colors will be white.
Mar 10 2017, 7:20 PM · Import/Export, Addons