Unbaked Dynamic Paint Not Displayed in Rendered Output but Shows in Viewport #59997

Open
opened 2018-12-31 04:25:46 +01:00 by hsab · 13 comments

System Information
Operating system: Manjaro 18.0.1 Illyria / x86_64 Linux 4.14.90-1-MANJARO
Graphics card: Nvidia 1080 Ti

Blender Version
Broken: 2.80 (sub 39), Commit date: 2018-12-29 18:10, Hash 266b1e2cdb
Worked: 2.79 (sub 6), Commit date: 2018-10-22 16:17, Hash 86dbbd156f

Short description of error
Unless baked, dynamic paint does not affect the final rendered image but is properly displayed in viewport.
The default and expected behavior is to be able to render the effect regardless if baked or not. This is how 2.7x operated in the past.
Moreover this problem, which I assume has something to do with vertex colors [has caused other issues ]] with different [ https:*github.com/hsab/tensionmap | addons that depend on similar workflows of modifying the vertex color using the python API (eg. proximity, stress mapping etc.)
Not sure if #51214 is related since it's from April 2017. If so please close as a duplicate.

Exact steps for others to reproduce the error
Two blend files attached, one for 2.8 and one for 2.79.
2.79 file works as expected.
2.8 file is broken unless baked.

2.79.6 Render:
output.gif

2.80.0 render:
output.gif

dynamicpaint2.8.blend
dynamicpaint2.79.blend

**System Information** Operating system: Manjaro 18.0.1 Illyria / x86_64 Linux 4.14.90-1-MANJARO Graphics card: Nvidia 1080 Ti **Blender Version** Broken: 2.80 (sub 39), Commit date: 2018-12-29 18:10, Hash 266b1e2cdbc1 Worked: 2.79 (sub 6), Commit date: 2018-10-22 16:17, Hash 86dbbd156fa **Short description of error** Unless baked, dynamic paint does not affect the final rendered image but is properly displayed in viewport. The default and expected behavior is to be able to render the effect regardless if baked or not. This is how 2.7x operated in the past. Moreover this problem, which I assume has something to do with vertex colors [has caused other issues ]] with different [[ https:*github.com/hsab/tensionmap | addons ](https:*github.com/JacquesLucke/animation_nodes/issues/989) that depend on similar workflows of modifying the vertex color using the python API (eg. proximity, stress mapping etc.) Not sure if #51214 is related since it's from April 2017. If so please close as a duplicate. **Exact steps for others to reproduce the error** Two blend files attached, one for 2.8 and one for 2.79. 2.79 file works as expected. 2.8 file is broken unless baked. 2.79.6 Render: ![output.gif](https://archive.blender.org/developer/F6124373/output.gif) 2.80.0 render: ![output.gif](https://archive.blender.org/developer/F6124385/output.gif) [dynamicpaint2.8.blend](https://archive.blender.org/developer/F6124337/dynamicpaint2.8.blend) [dynamicpaint2.79.blend](https://archive.blender.org/developer/F6124339/dynamicpaint2.79.blend)
Author

Added subscriber: @knusk

Added subscriber: @knusk

#61574 was marked as duplicate of this issue

#61574 was marked as duplicate of this issue

Added subscriber: @ZedDB

Added subscriber: @ZedDB
Sergey Sharybin was assigned by Sebastian Parborg 2018-12-31 14:45:35 +01:00

I can reproduce this. But I think this is related to #59939 as it renders correctly IF you simply do not render out as animation (IE you render out a still frame).

I can reproduce this. But I think this is related to #59939 as it renders correctly IF you simply do not render out as animation (IE you render out a still frame).
Author

In #59997#590836, @ZedDB wrote:
I can reproduce this. But I think this is related to #59939 as it renders correctly IF you simply do not render out as animation (IE you render out a still frame).

Correct, rendering stills produces valid results. It is animation rendering that fails to deliver the expected paintmap. I thought #51214 was related to animation rendering, but seems like it was for stills. #59939 seems to be for movie editor and compositing and I'm not sure how it relates since I'm unfamiliar with the C code.

However I experience the same exact behavior when manipulating vertex colors using the Python API, particularly on meshes with modifiers. It'd be worthwhile to have a look at this as it is a more thorough report. Nonetheless, there's definitely an issue with non-static vertex colors and animation rendering.

> In #59997#590836, @ZedDB wrote: > I can reproduce this. But I think this is related to #59939 as it renders correctly IF you simply do not render out as animation (IE you render out a still frame). Correct, rendering stills produces valid results. It is animation rendering that fails to deliver the expected paintmap. I thought #51214 was related to animation rendering, but seems like it was for stills. #59939 seems to be for movie editor and compositing and I'm not sure how it relates since I'm unfamiliar with the C code. However I experience the same exact behavior when manipulating vertex colors using the Python API, particularly on meshes with modifiers. It'd be worthwhile to have a look at [this ](https://github.com/JacquesLucke/animation_nodes/issues/989) as it is a more thorough report. Nonetheless, there's definitely an issue with non-static vertex colors and animation rendering.

Added subscriber: @IlidioFernandesdosReisJorge

Added subscriber: @IlidioFernandesdosReisJorge
Sergey Sharybin removed their assignment 2019-03-15 12:50:36 +01:00
Clément Foucault was assigned by Sergey Sharybin 2019-03-15 12:50:36 +01:00

Added subscribers: @fclem, @Sergey

Added subscribers: @fclem, @Sergey

It works in LookDev mode.

@fclem, not sure if that's by design or some issue is involved?

It works in LookDev mode. @fclem, not sure if that's by design or some issue is involved?
Clément Foucault was unassigned by Sergey Sharybin 2019-03-15 12:51:29 +01:00
Sergey Sharybin self-assigned this 2019-03-15 12:51:29 +01:00

Eeeh, replied to the wrong task.

@fclem, ignore this one! Will be another one!

Eeeh, replied to the wrong task. @fclem, ignore this one! Will be another one!

Removed subscriber: @fclem

Removed subscriber: @fclem
Member

Added subscriber: @MichelAnders

Added subscriber: @MichelAnders
Sergey Sharybin was unassigned by Dalai Felinto 2019-12-23 16:35:31 +01:00
Member

Added subscriber: @Jeroen-Bakker

Added subscriber: @Jeroen-Bakker
Member

No active development is done to Dynamic Painting so marking this issue as known issue.

No active development is done to Dynamic Painting so marking this issue as known issue.
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Reference: blender/blender#59997
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