2.79 Rigid Body Sim. Does Not Behave The Same In 2.8 #57589

New Issue

Predrag Lazic · 2018-11-02T19:18:51+01:00

Predrag Lazic commented

2018-11-02 19:18:51 +01:00

System Information
OS: Manjaro 17.1.12 Hakoila
Kernel: x86_64 Linux 4.16.18-rt12-MANJARO
DE: KDE 5.50.0 / Plasma 5.13.5
CPU: Intel Core i5-2400S @ 4x 3.3GHz [60.0°C]
GPU: AMD TURKS (DRM 2.50.0 / 4.16.18-rt12-MANJARO, LLVM 6.0.1)
RAM: 2665MiB / 3925MiB

Blender Version
Broken: fe07839d01
Worked: f4dc9f9d68

Short description of error

Rigid Body Constraint Type: Point doesn't register in 2.8 (The ball on the bell doesn't move)
Driver Information for object name 'Empty' doesn't update in real time (N) panel.

Exact steps for others to reproduce the error
Attached File 18_blender_2.79_2018.11.02_RigidBodyBellFlower(02).blend
Enable auto-run python scripts checkbox in User Preferences
Play animation from beginning

**System Information** OS: Manjaro 17.1.12 Hakoila Kernel: x86_64 Linux 4.16.18-rt12-MANJARO DE: KDE 5.50.0 / Plasma 5.13.5 CPU: Intel Core i5-2400S @ 4x 3.3GHz [60.0°C] GPU: AMD TURKS (DRM 2.50.0 / 4.16.18-rt12-MANJARO, LLVM 6.0.1) RAM: 2665MiB / 3925MiB **Blender Version** Broken: fe07839d01b Worked: f4dc9f9d68b **Short description of error** 1. Rigid Body Constraint Type: Point doesn't register in 2.8 (The ball on the bell doesn't move) 2. Driver Information for object name 'Empty' doesn't update in real time (N) panel. **Exact steps for others to reproduce the error** Attached File [18_blender_2.79_2018.11.02_RigidBodyBellFlower(02).blend](https://archive.blender.org/developer/F5339667/18_blender_2.79_2018.11.02_RigidBodyBellFlower_02_.blend) Enable auto-run python scripts checkbox in User Preferences Play animation from beginning

Predrag Lazic commented

2018-11-02 19:18:51 +01:00

Added subscriber: @particl3s

blender-admin commented

2018-11-02 19:18:51 +01:00

#60007 was marked as duplicate of this issue

Philipp Oeser commented

2018-11-05 11:37:35 +01:00

Added subscribers: @Sergey, @lichtwerk

Sergey Sharybin was assigned by Philipp Oeser

2018-11-05 11:37:35 +01:00

Philipp Oeser commented

2018-11-05 11:37:35 +01:00

regarding 2. (driver in N Panels): you have to enable Timeline > Menu > Playback > Play Animation in: Property Editors. This was not the case in 2.79, not sure why this is needed in 2.8...
regarding 1. (RB point constraint): can confirm there is an issue [ball doesnt move]

also noticed that 2.8 detects a second dependency cycle [not sure if this is related though...]

2.8

Dependency cycle detected:
  'SCscene.RIGIDBODY_REBUILD()' depends on 'OBNurbsPath.GEOMETRY_UBEREVAL()' through 'Object Geom Eval -> Rigidbody Rebuild'
  'OBNurbsPath.GEOMETRY_UBEREVAL()' depends on 'OBNurbsPath.TRANSFORM_FINAL()' through 'Hook Modifier'
  'OBNurbsPath.TRANSFORM_FINAL()' depends on 'OBNurbsPath.TRANSFORM_OBJECT_UBEREVAL()' through 'Temp Ubereval'
  'OBNurbsPath.TRANSFORM_OBJECT_UBEREVAL()' depends on 'OBNurbsPath.RIGIDBODY_TRANSFORM_COPY()' through 'RBO Sync -> Uber (Temp)'
  'OBNurbsPath.RIGIDBODY_TRANSFORM_COPY()' depends on 'SCscene.RIGIDBODY_SIM()' through 'Rigidbody Sim Eval -> RBO Sync'
  'SCscene.RIGIDBODY_SIM()' depends on 'SCscene.RIGIDBODY_REBUILD()' through 'Rigidbody [Init -> SimStep]'
Dependency cycle detected:
  'SCscene.RIGIDBODY_SIM()' depends on 'OBIcosphere.001.TRANSFORM_PARENT()' through 'Base Ob Transform -> Rigidbody Sim Eval'
  'OBIcosphere.001.TRANSFORM_PARENT()' depends on 'OBIcosphere.001.TRANSFORM_LOCAL()' through 'ObLocal -> ObParent'
  'OBIcosphere.001.TRANSFORM_LOCAL()' depends on 'OBIcosphere.TRANSFORM_FINAL()' through 'Parent'
  'OBIcosphere.TRANSFORM_FINAL()' depends on 'OBIcosphere.TRANSFORM_OBJECT_UBEREVAL()' through 'Temp Ubereval'
  'OBIcosphere.TRANSFORM_OBJECT_UBEREVAL()' depends on 'OBIcosphere.RIGIDBODY_TRANSFORM_COPY()' through 'RBO Sync -> Uber (Temp)'
  'OBIcosphere.RIGIDBODY_TRANSFORM_COPY()' depends on 'SCscene.RIGIDBODY_SIM()' through 'Rigidbody Sim Eval -> RBO Sync'
Detected 2 dependency cycles

2.7 with new dependency graph

Dependency cycle detected:
  'SCscene.RIGIDBODY_SIM()' depends on 'OBIcosphere.001.TRANSFORM_PARENT()' through 'Base Ob Transform -> Rigidbody Sim Eval'
  'OBIcosphere.001.TRANSFORM_PARENT()' depends on 'OBIcosphere.001.TRANSFORM_LOCAL()' through '[ObLocal -> ObParent]'
  'OBIcosphere.001.TRANSFORM_LOCAL()' depends on 'OBIcosphere.TRANSFORM_FINAL()' through 'Parent'
  'OBIcosphere.TRANSFORM_FINAL()' depends on 'OBIcosphere.OBJECT_UBEREVAL()' through 'Temp Ubereval'
  'OBIcosphere.OBJECT_UBEREVAL()' depends on 'OBIcosphere.TRANSFORM_RIGIDBODY()' through 'RBO Sync -> Uber (Temp)'
  'OBIcosphere.TRANSFORM_RIGIDBODY()' depends on 'SCscene.RIGIDBODY_SIM()' through 'Rigidbody Sim Eval -> RBO Sync'

@Sergey: mind having a look?

regarding `2. (driver in N Panels)`: you have to enable `Timeline` > `Menu` > `Playback` > `Play Animation in: Property Editors`. This was not the case in 2.79, not sure why this is needed in 2.8... regarding `1. (RB point constraint)`: can confirm there is an issue [ball doesnt move] also noticed that 2.8 detects a second dependency cycle [not sure if this is related though...] 2.8 ``` Dependency cycle detected: 'SCscene.RIGIDBODY_REBUILD()' depends on 'OBNurbsPath.GEOMETRY_UBEREVAL()' through 'Object Geom Eval -> Rigidbody Rebuild' 'OBNurbsPath.GEOMETRY_UBEREVAL()' depends on 'OBNurbsPath.TRANSFORM_FINAL()' through 'Hook Modifier' 'OBNurbsPath.TRANSFORM_FINAL()' depends on 'OBNurbsPath.TRANSFORM_OBJECT_UBEREVAL()' through 'Temp Ubereval' 'OBNurbsPath.TRANSFORM_OBJECT_UBEREVAL()' depends on 'OBNurbsPath.RIGIDBODY_TRANSFORM_COPY()' through 'RBO Sync -> Uber (Temp)' 'OBNurbsPath.RIGIDBODY_TRANSFORM_COPY()' depends on 'SCscene.RIGIDBODY_SIM()' through 'Rigidbody Sim Eval -> RBO Sync' 'SCscene.RIGIDBODY_SIM()' depends on 'SCscene.RIGIDBODY_REBUILD()' through 'Rigidbody [Init -> SimStep]' Dependency cycle detected: 'SCscene.RIGIDBODY_SIM()' depends on 'OBIcosphere.001.TRANSFORM_PARENT()' through 'Base Ob Transform -> Rigidbody Sim Eval' 'OBIcosphere.001.TRANSFORM_PARENT()' depends on 'OBIcosphere.001.TRANSFORM_LOCAL()' through 'ObLocal -> ObParent' 'OBIcosphere.001.TRANSFORM_LOCAL()' depends on 'OBIcosphere.TRANSFORM_FINAL()' through 'Parent' 'OBIcosphere.TRANSFORM_FINAL()' depends on 'OBIcosphere.TRANSFORM_OBJECT_UBEREVAL()' through 'Temp Ubereval' 'OBIcosphere.TRANSFORM_OBJECT_UBEREVAL()' depends on 'OBIcosphere.RIGIDBODY_TRANSFORM_COPY()' through 'RBO Sync -> Uber (Temp)' 'OBIcosphere.RIGIDBODY_TRANSFORM_COPY()' depends on 'SCscene.RIGIDBODY_SIM()' through 'Rigidbody Sim Eval -> RBO Sync' Detected 2 dependency cycles ``` 2.7 with new dependency graph ``` Dependency cycle detected: 'SCscene.RIGIDBODY_SIM()' depends on 'OBIcosphere.001.TRANSFORM_PARENT()' through 'Base Ob Transform -> Rigidbody Sim Eval' 'OBIcosphere.001.TRANSFORM_PARENT()' depends on 'OBIcosphere.001.TRANSFORM_LOCAL()' through '[ObLocal -> ObParent]' 'OBIcosphere.001.TRANSFORM_LOCAL()' depends on 'OBIcosphere.TRANSFORM_FINAL()' through 'Parent' 'OBIcosphere.TRANSFORM_FINAL()' depends on 'OBIcosphere.OBJECT_UBEREVAL()' through 'Temp Ubereval' 'OBIcosphere.OBJECT_UBEREVAL()' depends on 'OBIcosphere.TRANSFORM_RIGIDBODY()' through 'RBO Sync -> Uber (Temp)' 'OBIcosphere.TRANSFORM_RIGIDBODY()' depends on 'SCscene.RIGIDBODY_SIM()' through 'Rigidbody Sim Eval -> RBO Sync' ``` @Sergey: mind having a look?

Sergey Sharybin commented

2019-01-03 10:44:50 +01:00

Added subscribers: @MaxAnn, @ZedDB