Material-based displacement on source geometry fails to bake #82454

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opened 2020-11-06 10:36:25 +01:00 by Piotr Adamowicz · 10 comments

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 451.67

Blender Version
Broken: version: 2.91.0 Beta, branch: master, commit date: 2020-11-04 00:13, hash: 101c3d4ce4
Worked: ?

Short description of error
While baking in Selected to Active mode, applying a displacement shader to source geometry fails to actually displace the geometry, resulting in an incorrect bake.

Exact steps for others to reproduce the error

  1. Open attached .blend file.
  2. Bake the texture.
  3. Compare to viewport render of the scene.
    displacement_bake.blend
**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 451.67 **Blender Version** Broken: version: 2.91.0 Beta, branch: master, commit date: 2020-11-04 00:13, hash: `101c3d4ce4` Worked: ? **Short description of error** While baking in Selected to Active mode, applying a displacement shader to source geometry fails to actually displace the geometry, resulting in an incorrect bake. **Exact steps for others to reproduce the error** 1. Open attached .blend file. 2. Bake the texture. 3. Compare to viewport render of the scene. [displacement_bake.blend](https://archive.blender.org/developer/F9217032/displacement_bake.blend)

Added subscriber: @MadMinstrel

Added subscriber: @MadMinstrel
Piotr Adamowicz changed title from Displacement doesn't work when baking to Material-based displacement on source geometry fails to bake 2020-11-06 10:39:51 +01:00

Added subscriber: @CoastKid

Added subscriber: @CoastKid

Added subscriber: @JerahmyPocott

Added subscriber: @JerahmyPocott

Added subscriber: @iss

Added subscriber: @iss

I guess this would also be TODO like #53901.

I guess this would also be TODO like #53901.
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Added subscribers: @dfelinto, @lichtwerk

Added subscribers: @dfelinto, @lichtwerk
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Changed status from 'Needs Triage' to: 'Confirmed'

Changed status from 'Needs Triage' to: 'Confirmed'
Member

Can confirm the behavior.

Displacement would need to be evaluated first, then raycast for baking against the result.
Atm. the raycast seems to go against the undisplaced.
Not sure though how easily this is doable, @dfelinto ?

Can confirm the behavior. Displacement would need to be evaluated first, then raycast for baking against the result. Atm. the raycast seems to go against the undisplaced. Not sure though how easily this is doable, @dfelinto ?

Added subscriber: @brecht

Added subscriber: @brecht

Not supported by the current baking system, not considered a bug.

Not supported by the current baking system, not considered a bug.
Philipp Oeser removed the
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label 2023-02-09 14:01:59 +01:00
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Reference: blender/blender#82454
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