Baking to Vertex Colors bakes without result to look at (if sculpt vertex color layer is present but experimental option is disabled) #86455

New Issue

Simon Thommes · 2021-03-10T13:14:38+01:00

Simon Thommes commented

2021-03-10 13:14:38 +01:00

System Information
Operating system: Linux-5.8.0-7630-generic-x86_64-with-glibc2.32 64 Bits
Graphics card: Quadro RTX 6000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.32.03

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-10 11:41, hash: 4fece16d45
(also in 2.92.0 release)
Worked: never (?)
Short description of error
I have no idea what is causing this. An object in the attached example file refuses to bake to vertex colors.

As you can see baking the cube works perfectly fine, when there is no vertex color layer I get an error message.
With the handkerchief object nothing besides the progress bar seems to happen. Not even the error message appears when there is no vertex color layer on the object.

vertex_color_baking-2021-03-10_13.07.20.mp4

Exact steps for others to reproduce the error
See video and file:
vertex_color_baking.blend

**System Information** Operating system: Linux-5.8.0-7630-generic-x86_64-with-glibc2.32 64 Bits Graphics card: Quadro RTX 6000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.32.03 **Blender Version** Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-10 11:41, hash: `4fece16d45` (also in 2.92.0 release) Worked: never (?) **Short description of error** I have no idea what is causing this. An object in the attached example file refuses to bake to vertex colors. As you can see baking the cube works perfectly fine, when there is no vertex color layer I get an error message. With the handkerchief object nothing besides the progress bar seems to happen. Not even the error message appears when there is no vertex color layer on the object. [vertex_color_baking-2021-03-10_13.07.20.mp4](https://archive.blender.org/developer/F9882938/vertex_color_baking-2021-03-10_13.07.20.mp4) **Exact steps for others to reproduce the error** See video and file: [vertex_color_baking.blend](https://archive.blender.org/developer/F9882940/vertex_color_baking.blend)

Simon Thommes commented

2021-03-10 13:14:38 +01:00

Added subscriber: @SimonThommes

Philipp Oeser commented

2021-03-10 13:20:15 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-03-10 13:20:15 +01:00

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

Philipp Oeser commented

2021-03-10 13:20:15 +01:00

Enable Sculpt Vertex Colors in Experimental [there is one layer present - if there is, it will try to bake to that]
Remove it, then you get the usual error

Does this work for you?

Enable `Sculpt Vertex Colors` in Experimental [there is one layer present - if there is, it will try to bake to that] Remove it, then you get the usual error Does this work for you?

Simon Thommes commented

2021-03-10 13:37:06 +01:00

Ah, yea that's it. Thanks @lichtwerk !

... It probably shouldn't work like that though, right?

Ah, yea that's it. Thanks @lichtwerk ! ... It probably shouldn't work like that though, right?

Philipp Oeser commented

2021-03-10 13:54:14 +01:00

Well, as far as I can tell this is baking to sculpt vertex colors correctly, no?
The fact that these are in a constant fight against each other is a bit of a pain (if enabled, sculpt vertex colors take preference - they display in the viewport when Vertex is chosen for Color in the Shading popup etc even though you might be painting "regular" vertex colors)

Some of this was fixed, see #78225, some of it is mentioned in #72866, this adds up to it

Vertex color drawing in the workbench should perhaps be mode specific. By default use Sculpt Vertex Colors, and when in attribute vertex color mode use the Vertex Colors

Well, as far as I can tell this is baking to sculpt vertex colors correctly, no? The fact that these are in a constant fight against each other is a bit of a pain (if enabled, sculpt vertex colors take preference - they display in the viewport when Vertex is chosen for Color in the Shading popup etc even though you might be painting "regular" vertex colors) Some of this was fixed, see #78225, some of it is mentioned in #72866, this adds up to it > Vertex color drawing in the workbench should perhaps be mode specific. By default use Sculpt Vertex Colors, and when in attribute vertex color mode use the Vertex Colors

Philipp Oeser commented

2021-03-10 14:01:44 +01:00

Changed status from 'Needs User Info' to: 'Needs Developer To Reproduce'

Philipp Oeser commented

2021-03-10 14:01:44 +01:00

Added subscriber: @brecht

Philipp Oeser commented

2021-03-10 14:01:44 +01:00

Left a note in #72866 about this.

On a technical level, we could check U.experimental.use_sculpt_vertex_colors in baking code an discard that an existing vertex color layer if this is present.
@brecht: that would make sense, right? (will happily provide a patch if so)

Left a note in #72866 about this. On a technical level, we could check `U.experimental.use_sculpt_vertex_colors` in baking code an discard that an existing vertex color layer if this is present. @brecht: that would make sense, right? (will happily provide a patch if so)

Brecht Van Lommel commented

2021-03-10 14:03:16 +01:00

Checking the experimental option makes sense to me.

Philipp Oeser self-assigned this 2021-03-10 14:08:25 +01:00

Philipp Oeser commented

2021-03-10 14:08:25 +01:00

Changed status from 'Needs Developer To Reproduce' to: 'Confirmed'

Philipp Oeser changed title from ~~Baking to Vertex Colors does not execute without any error message~~ to Baking to Vertex Colors bakes without result to look at (if sculpt vertex color layer is present but experimental option is disabled)

2021-03-10 14:09:42 +01:00

Simon Thommes commented

2021-03-10 14:33:41 +01:00

Yea, I know that the clash between regular and sculpt vertex colors is a separate issue. It's just that in this case, as a user I was not aware that there even was a sculpt vertex color layer and it was baking to that. Having to know that you have to enable an experimental feature (which also isn't exposed in 2.92.0 afaik) seems backwards.

But yea, just checking for the setting sounds good, thank you! :)

Yea, I know that the clash between regular and sculpt vertex colors is a separate issue. It's just that in this case, as a user I was not aware that there even was a sculpt vertex color layer and it was baking to that. Having to know that you have to enable an experimental feature (which also isn't exposed in 2.92.0 afaik) seems backwards. But yea, just checking for the setting sounds good, thank you! :)

blender-admin commented

2021-03-11 13:42:37 +01:00

This issue was referenced by 960337f17a

This issue was referenced by 960337f17abd3938f2c126d3a0a83aef8f6c354b

Philipp Oeser commented

2021-03-12 09:26:13 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Philipp Oeser closed this issue

2021-03-12 09:26:13 +01:00

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Baking to Vertex Colors bakes without result to look at (if sculpt vertex color layer is present but experimental option is disabled) #86455