Page MenuHome
Create Task
Maniphest T62863

2.8 - Dynamic Paint and Rigid body does not work
Confirmed, NormalPublicKNOWN ISSUE
Actions

Description

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: rB5f45cbb26ec8
Worked: 2.79

Exact steps for others to reproduce the error
This file is for 2.79.

dynamic_paint_paint-Rigid Body-2.79.blend357 KBDownload

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

Event Timeline

YAFU (YAFU) created this task.Mar 22 2019, 9:49 PM
Sebastian Parborg (zeddb) assigned this task to Sergey Sharybin (sergey).EditedMar 23 2019, 6:52 PM
Sebastian Parborg (zeddb) lowered the priority of this task from 90 to 50.
Sebastian Parborg (zeddb) added subscribers: Sergey Sharybin (sergey), Sebastian Parborg (zeddb).

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

@Sergey Sharybin (sergey) any idea what is going on?

(Blender reports a few dependency cycles)

Dalai Felinto (dfelinto) removed Sergey Sharybin (sergey) as the assignee of this task.Dec 23 2019, 4:34 PM
Dalai Felinto (dfelinto) added a project: Tracker Curfew.
Jeroen Bakker (jbakker) changed the subtype of this task from "Report" to "Known Issue".Jan 21 2020, 10:10 AM
Jeroen Bakker (jbakker) edited projects, added Physics; removed Tracker Curfew.
Jeroen Bakker (jbakker) added a subscriber: Jeroen Bakker (jbakker).

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

Jeroen Bakker (jbakker) added a comment.Jan 21 2020, 10:16 AM
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.

Sebastian Parborg (zeddb) moved this task from Backlog to Rigid Body on the Physics board.Oct 15 2020, 1:34 PM