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Changing outputs from Separate RGB node into Displacement (using microdisplacement) does not trigger geometry update. #77727

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opened 2020-06-10 16:07:24 +02:00 by Valera Barashkov · 9 comments
Valera Barashkov commented 2020-06-10 16:07:24 +02:00
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System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 446.14

Blender Version
Broken: version: 2.83.0, branch: master, commit date: 2020-06-03 14:38, hash: 211b6c29f7
Worked: (newest version of Blender that worked as expected)

Short description of error
Changing outputs from Separate RGB node into Displacement (using microdisplacement) does not trigger geometry update. Have to tab into edit mode to force mesh update.
rgb_disp_bug.blend

Exact steps for others to reproduce the error
Add plane with microdisplacement enabled.
Connect Image node to Separate RGB node and one of the channels into Displacement node.
Change view to Rendered mode.
Change channels from R to G to B to R and notice no geometry updates happen in the view port. (Make sure to use an image with different channels)

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 446.14 **Blender Version** Broken: version: 2.83.0, branch: master, commit date: 2020-06-03 14:38, hash: `211b6c29f7` Worked: (newest version of Blender that worked as expected) **Short description of error** Changing outputs from Separate RGB node into Displacement (using microdisplacement) does not trigger geometry update. Have to tab into edit mode to force mesh update. [rgb_disp_bug.blend](https://archive.blender.org/developer/F8606442/rgb_disp_bug.blend) **Exact steps for others to reproduce the error** Add plane with microdisplacement enabled. Connect Image node to Separate RGB node and one of the channels into Displacement node. Change view to Rendered mode. Change channels from R to G to B to R and notice no geometry updates happen in the view port. (Make sure to use an image with different channels)
Valera Barashkov commented 2020-06-10 16:07:24 +02:00
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Added subscriber: @valera-8

Added subscriber: @valera-8
Jacques Lucke commented 2020-06-10 17:08:37 +02:00
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Added subscriber: @JacquesLucke

Added subscriber: @JacquesLucke
Jacques Lucke commented 2020-06-10 17:08:37 +02:00
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Changed status from 'Needs Triage' to: 'Needs User Info'

Changed status from 'Needs Triage' to: 'Needs User Info'
Jacques Lucke commented 2020-06-10 17:08:37 +02:00
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Please prepare a simple .blend file that we can test this with. Do you have to use an image, or does it work with procedural noise as well?

Please prepare a simple .blend file that we can test this with. Do you have to use an image, or does it work with procedural noise as well?
Valera Barashkov commented 2020-06-10 19:47:57 +02:00
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Procedural noise does not work as well. See attached .blender please.
rgb_disp_bug.blend

Procedural noise does not work as well. See attached .blender please. [rgb_disp_bug.blend](https://archive.blender.org/developer/F8606442/rgb_disp_bug.blend)
Philipp Oeser commented 2020-06-11 09:50:25 +02:00
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Added subscriber: @lichtwerk

Added subscriber: @lichtwerk
Philipp Oeser commented 2020-06-11 09:50:25 +02:00
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Changed status from 'Needs User Info' to: 'Confirmed'

Changed status from 'Needs User Info' to: 'Confirmed'
Philipp Oeser commented 2020-06-11 09:50:25 +02:00
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Can confirm.

Can confirm.
Philipp Oeser removed the
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Lukas Tönne commented 2024-06-20 12:47:41 +02:00
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This actually works now! Closing.

This actually works now! Closing.
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Reference: blender/blender#77727
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