glass material bug #97149

Closed
opened 2022-04-07 19:21:08 +02:00 by harsh tandon · 18 comments

system: amd ryzen9
graphic card: nvidia 2080gti

I am working on a scene in blender of a glass bottle render. as i animated the whole scene when going to render i could see glass having cloudy texture which changes with every frame.
below i have uploaded frames 0, 1 and 2
as you can see the bottom of the bottle with glass material changes with every frame. and in video looks like a bad glitch

Video showing the flickering (file from #97180)
video.mp4
bottle test1 (2).blend

Original frames and file:

0002.png
0001.png
0000.png

system: amd ryzen9 graphic card: nvidia 2080gti I am working on a scene in blender of a glass bottle render. as i animated the whole scene when going to render i could see glass having cloudy texture which changes with every frame. below i have uploaded frames 0, 1 and 2 as you can see the bottom of the bottle with glass material changes with every frame. and in video looks like a bad glitch Video showing the flickering (file from #97180) [video.mp4](https://archive.blender.org/developer/F12984349/video.mp4) [bottle test1 (2).blend](https://archive.blender.org/developer/F12984340/bottle_test1__2_.blend) Original frames and file: ![0002.png](https://archive.blender.org/developer/F12981263/0002.png) ![0001.png](https://archive.blender.org/developer/F12981262/0001.png) ![0000.png](https://archive.blender.org/developer/F12981261/0000.png)
Author

Added subscriber: @harsh.tandongd

Added subscriber: @harsh.tandongd

#97192 was marked as duplicate of this issue

#97192 was marked as duplicate of this issue

#97180 was marked as duplicate of this issue

#97180 was marked as duplicate of this issue

Added subscriber: @mano-wii

Added subscriber: @mano-wii

Changed status from 'Needs Triage' to: 'Needs User Info'

Changed status from 'Needs Triage' to: 'Needs User Info'

I can see the weird reflection in the images, but I don't understand the bug.
Is it really a bug, or is it a bad material or scene setup?
We need a .blend file demonstrating the problem to evaluate and forward to the developers.

A guideline for making a good bug report can be found at https://wiki.blender.org/wiki/Process/Bug_Reports

I can see the weird reflection in the images, but I don't understand the bug. Is it really a bug, or is it a bad material or scene setup? We need a .blend file demonstrating the problem to evaluate and forward to the developers. A guideline for making a good bug report can be found at https://wiki.blender.org/wiki/Process/Bug_Reports
Author

In #97149#1337575, @mano-wii wrote:
I can see the weird reflection in the images, but I don't understand the bug.
Is it really a bug, or is it a bad material or scene setup?
We need a .blend file demonstrating the problem to evaluate and forward to the developers.

bottle test1.blend
pls find attached the blend file.
only bottle is rotating and camera around it. all the lights have no animation.

> In #97149#1337575, @mano-wii wrote: > I can see the weird reflection in the images, but I don't understand the bug. > Is it really a bug, or is it a bad material or scene setup? > We need a .blend file demonstrating the problem to evaluate and forward to the developers. [bottle test1.blend](https://archive.blender.org/developer/F12981360/bottle_test1.blend) pls find attached the blend file. only bottle is rotating and camera around it. all the lights have no animation.

Changed status from 'Needs User Info' to: 'Needs Triage'

Changed status from 'Needs User Info' to: 'Needs Triage'

I cannot reproduce the problem.
Actually the result here is quite different from the one shown in the description:

0000.png

0002.png

0001.png

I cannot reproduce the problem. Actually the result here is quite different from the one shown in the description: ![0000.png](https://archive.blender.org/developer/F12981398/0000.png) ![0002.png](https://archive.blender.org/developer/F12981397/0002.png) ![0001.png](https://archive.blender.org/developer/F12981396/0001.png)
Author

In #97149#1337588, @mano-wii wrote:
I cannot reproduce the problem.
Actually the result here is quite different from the one shown in the description:

0000.png

0002.png

0001.png

there is a slight difference at the bottom of the bottle{F12981477}

> In #97149#1337588, @mano-wii wrote: > I cannot reproduce the problem. > Actually the result here is quite different from the one shown in the description: > > ![0000.png](https://archive.blender.org/developer/F12981398/0000.png) > > ![0002.png](https://archive.blender.org/developer/F12981397/0002.png) > > ![0001.png](https://archive.blender.org/developer/F12981396/0001.png) there is a slight difference at the bottom of the bottle{[F12981477](https://archive.blender.org/developer/F12981477/11111.png)}
Author

bottle test1.blend

please see the following file. why am i getting this issue?

[bottle test1.blend](https://archive.blender.org/developer/F12981478/bottle_test1.blend) please see the following file. why am i getting this issue?

Added subscriber: @deadpin

Added subscriber: @deadpin
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Added subscriber: @PratikPB2123

Added subscriber: @PratikPB2123
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Added subscriber: @OmarEmaraDev

Added subscriber: @OmarEmaraDev
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Changed status from 'Needs Triage' to: 'Needs User Info'

Changed status from 'Needs Triage' to: 'Needs User Info'
Member

The objects Cylinder.002 and Cylinder.004 both have overlapping base at the base of the bottle, which might be causing those artifacts, can you try to separate them a bit and check if the issue still persists? If the issue is still there, can you reattach the file after separating them?

The objects `Cylinder.002` and `Cylinder.004` both have overlapping base at the base of the bottle, which might be causing those artifacts, can you try to separate them a bit and check if the issue still persists? If the issue is still there, can you reattach the file after separating them?
Member

Changed status from 'Needs User Info' to: 'Archived'

Changed status from 'Needs User Info' to: 'Archived'
Member

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.
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Reference: blender/blender#97149
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