Cycles gets stuck rendering final tile at 100% CPU #43562
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Reference: blender/blender#43562
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System Information
Operating system and graphics card
Blender Version
Broken: 2.73a
bbf09d9
Short description of error
Cycles gets stuck rendering the final tile of this blend file , using 100% CPU. This only seems to happen above a certain sample count; when using a low sample count such as 10 it does not occur.
Exact steps for others to reproduce the error
Open the linked .blend file and render it.
Changed status to: 'Open'
Added subscriber: @comcal116
Added subscribers: @sebastian_k, @JulianEisel
Assigning to sergey as requested on IRC
Appears to be related to volumetrics, as disabling them causes the render to complete successfully. I've also tested this on OS X and Windows, so it doesn't appear to be a platform-specific issue.
Added subscriber: @zeauro
It looks like a problematic geometry. Disabling last bevel modifier is sufficient to render.
Added subscriber: @Blendify
Please fill out the information on your computer
GPU or CPU rendering all this is need to help with this bug
I am not able to reproduce when rendering on CPU
On one machine I tested I was using an Intel i7 3770K and on another an Intel i5 4288U.
so both are rendering on cpu
how long about is it getting "Stuck"
Forever - the last tile never finishes rendering and uses 100% CPU for the thread rendering the tile.
well i have completed the render could you try changing these settings
well i have completed the render could you try changing these settings
Have tried rendering on cpu and gpu not at the same time of course
The render does not get stuck but the view does get stuck saying it is "paused"
is that a feature?
No, the viewport wasn't paused when I tested it; that's only how the file was saved. I can't render the scene on my GPU since it uses too much memory for my card. It'd be great if someone could test this on a GPU with more VRAM.
@zeauro was able to reproduce the issue above, so I don't think it's just my setup.
can confirm but it happen when i tried to abort the render
If it can help, my CPU is an i7 4770K. I am under ubuntu 14.04 64 bits.
It is weird that it is not the same tile that freeze when I use official 2.73a and master
810c7ee
.This issue was referenced by
25f33e058a
Changed status from 'Open' to: 'Resolved'
Closed by commit
25f33e058a
.This issue was referenced by blender/cycles@7a87d44d8e