2.8 - Dynamic Paint and Rigid body does not work #62863

New Issue

YAFU · 2019-03-22T21:49:54+01:00

YAFU commented

2019-03-22 21:49:54 +01:00

System Information
Operating system: Linux-5.0.1-050001-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: GeForce GTX 960/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 418.43

Blender Version
Broken: version: 2.80 (sub 51), branch: master, commit date: 2019-03-22 16:20, hash: 5f45cbb26e
Worked: 2.79

Exact steps for others to reproduce the error
This file is for 2.79.
dynamic_paint_paint-Rigid Body-2.79.blend
I can not see paint results in LookDev/Rendered mode in 2.8. I also could not recreate the scene from scratch in 2.8

**System Information** Operating system: Linux-5.0.1-050001-generic-x86_64-with-debian-buster-sid 64 Bits Graphics card: GeForce GTX 960/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 418.43 **Blender Version** Broken: version: 2.80 (sub 51), branch: master, commit date: 2019-03-22 16:20, hash: `5f45cbb26e` Worked: 2.79 **Exact steps for others to reproduce the error** This file is for 2.79. [dynamic_paint_paint-Rigid Body-2.79.blend](https://archive.blender.org/developer/F6866852/dynamic_paint_paint-Rigid_Body-2.79.blend) I can not see paint results in LookDev/Rendered mode in 2.8. I also could not recreate the scene from scratch in 2.8

YAFU commented

2019-03-22 21:49:54 +01:00

Added subscriber: @YAFU

Sebastian Parborg commented

2019-03-23 18:52:03 +01:00

Added subscribers: @Sergey, @ZedDB

Sergey Sharybin was assigned by Sebastian Parborg

2019-03-23 18:52:03 +01:00

Sebastian Parborg commented

2019-03-23 18:52:03 +01:00

I can confirm that dynamic paint starts working if I remove the rigid body from the half pipe.

@Sergey any idea what is going on?

(Blender reports a few dependency cycles)

I can confirm that dynamic paint starts working if I remove the rigid body from the half pipe. @Sergey any idea what is going on? (Blender reports a few dependency cycles)

Sergey Sharybin was unassigned by Dalai Felinto

2019-12-23 16:34:50 +01:00

Jeroen Bakker commented

2020-01-21 10:10:41 +01:00

Added subscriber: @Jeroen-Bakker

Jeroen Bakker commented

2020-01-21 10:10:41 +01:00

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

Jeroen Bakker commented

2020-01-21 10:16:15 +01:00

Detected 2 dependency cycles
Dependency cycle detected:
  OBPlane/Geometry Component/GEOMETRY_EVAL() depends on
  OBSphere/Transform Component/TRANSFORM_FINAL() via 'Dynamic Paint Brush'
  OBSphere/Transform Component/RIGIDBODY_TRANSFORM_COPY() via 'Rigidbody Sync -> Transform Final'
  SCScene/Transform Component/RIGIDBODY_SIM() via 'Rigidbody Sim Eval -> RBO Sync'
  OBPlane/Geometry Component/GEOMETRY_EVAL() via 'Object Geom Eval -> Rigidbody Rebuild'
Dependency cycle detected:
  OBPlane/PointCache Component/POINT_CACHE_RESET() depends on
  OBSphere/Transform Component/TRANSFORM_FINAL() via 'Point Cache'
  OBSphere/Transform Component/RIGIDBODY_TRANSFORM_COPY() via 'Rigidbody Sync -> Transform Final'
  SCScene/Transform Component/RIGIDBODY_SIM() via 'Rigidbody Sim Eval -> RBO Sync'
  OBPlane/Geometry Component/GEOMETRY_EVAL() via 'Object Geom Eval -> Rigidbody Rebuild'
  OBPlane/PointCache Component/POINT_CACHE_RESET() via 'Point Cache -> Geometry'

Perhaps the evaluation of dynamic paint should be splitted into more fine grained dependencies. eg painting might not influence geometry, only the custom data.

``` Detected 2 dependency cycles Dependency cycle detected: OBPlane/Geometry Component/GEOMETRY_EVAL() depends on OBSphere/Transform Component/TRANSFORM_FINAL() via 'Dynamic Paint Brush' OBSphere/Transform Component/RIGIDBODY_TRANSFORM_COPY() via 'Rigidbody Sync -> Transform Final' SCScene/Transform Component/RIGIDBODY_SIM() via 'Rigidbody Sim Eval -> RBO Sync' OBPlane/Geometry Component/GEOMETRY_EVAL() via 'Object Geom Eval -> Rigidbody Rebuild' Dependency cycle detected: OBPlane/PointCache Component/POINT_CACHE_RESET() depends on OBSphere/Transform Component/TRANSFORM_FINAL() via 'Point Cache' OBSphere/Transform Component/RIGIDBODY_TRANSFORM_COPY() via 'Rigidbody Sync -> Transform Final' SCScene/Transform Component/RIGIDBODY_SIM() via 'Rigidbody Sim Eval -> RBO Sync' OBPlane/Geometry Component/GEOMETRY_EVAL() via 'Object Geom Eval -> Rigidbody Rebuild' OBPlane/PointCache Component/POINT_CACHE_RESET() via 'Point Cache -> Geometry' ``` Perhaps the evaluation of dynamic paint should be splitted into more fine grained dependencies. eg painting might not influence geometry, only the custom data.

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2.8 - Dynamic Paint and Rigid body does not work #62863