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Epaminontas Nontas (Nontas)
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Thu, Nov 28, 4:39 PM (2 w, 2 d)

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Sat, Nov 30

Epaminontas Nontas (Nontas) added a comment to T66529: [Cycles] Motion Blur of fast rotating objects "randomly" glitches.

Just to report a temporary workaround. While you render your project in JPG or PNG files or any image files, you go through a photo viewer to see which frames have the motion blur glitch. When you locate the frames you go back in the blender project and you render the glitched frames using the following render motion blur settings: Position "Start on Frame" , Rolling shutter "Top-Bottom" , and Rolling shutter duration around 0.68. In this way the motion blur probably will behave normal for the selected frame. I wouldn't recommend those settings for all the project frames, but only for the glitched frames. This temporary workaround works for me so far. But I really hope to see a fix for this soon, I believe it's ULTRA critical important. Motion blur is so extremely important.

Sat, Nov 30, 1:15 AM · Cycles, BF Blender

Thu, Nov 28

Epaminontas Nontas (Nontas) added a comment to T66529: [Cycles] Motion Blur of fast rotating objects "randomly" glitches.

@Brecht Van Lommel (brecht) , @Sergey Sharybin (sergey), @Lukas Stockner (lukasstockner97)
Could you guys take a look at this issue? Imho this is not medium priority, it's pretty crucial for productions to be able to render mo blur properly.

Thu, Nov 28, 9:44 PM · Cycles, BF Blender
Epaminontas Nontas (Nontas) added a comment to T66529: [Cycles] Motion Blur of fast rotating objects "randomly" glitches.

I also confirm this bug. It's very annoying and there is no workaround. When enabling motion blur there are random glitches exactly as described to above videos from Giacomo and Yegor. I also have tried various motion blur settings , like position "Center on frame " or "Start on Frame" and Rolling shutter to "None" or "Top-Bottom" or even increasing the parameter "Steps" for individual objects.
I believe it's a major importance for this bug to get fixed. Motion blur is very vital.
I am using Blender 2.81 official release.

Thu, Nov 28, 4:48 PM · Cycles, BF Blender