Parenting object leave collission box. #41285

New Issue

Marcin Nijaki · 2014-08-01T16:57:29+02:00

Marcin Nijaki commented

2014-08-01 16:57:29 +02:00

System Information
Windows 8.1 Intel HD 4400

Blender Version
Broken: 2.70a

In BGE when object1 is set to be parent object2, in old object2 location leave a collision box which can be "invisible wall".

Exact steps for others to reproduce the error
collission_bug.blend In this file (run game engine), when you grab cube (G key) and try go forward (W) you be blocked by old location collission box. You must has active "Show physics visualization" to see this.

**System Information** Windows 8.1 Intel HD 4400 **Blender Version** Broken: 2.70a In BGE when object1 is set to be parent object2, in old object2 location leave a collision box which can be "invisible wall". **Exact steps for others to reproduce the error** [collission_bug.blend](https://archive.blender.org/developer/F100918/collission_bug.blend) In this file (run game engine), when you grab cube (G key) and try go forward (W) you be blocked by old location collission box. You must has active "Show physics visualization" to see this.

Marcin Nijaki commented

2014-08-01 16:57:29 +02:00

Changed status to: 'Open'

Marcin Nijaki commented

2014-08-01 16:57:29 +02:00

Added subscriber: @marcino15

Raf Colson commented

2014-08-02 00:41:08 +02:00

Added subscriber: @raco

Raf Colson commented

2014-08-02 00:41:08 +02:00

I can confirm this. First thing that came to mind is that this was already reported, but couldn't find it in the tracker. So I'm glad it is reported anyhow.

NikoLeopold commented

2014-10-28 01:22:22 +01:00

Added subscriber: @NikoLeopold

NikoLeopold commented

2014-10-28 01:22:22 +01:00

confirmed in 2.72.

Jacob Merrill commented

2014-11-04 19:32:43 +01:00

Added subscriber: @JacobMerrill-1

Jacob Merrill commented

2014-11-04 19:32:43 +01:00

yeah it was part of my compound object problems, (this assumes the object is a rigid body)

after you parent it do this
store=object.parent
object.removeParent
object.suspendDynamics
object.disableRigidBodySimulation
object.setParent(store,1,0)

(this is for a compound object)

yeah it was part of my compound object problems, (this assumes the object is a rigid body) after you parent it do this store=object.parent object.removeParent object.suspendDynamics object.disableRigidBodySimulation object.setParent(store,1,0) (this is for a compound object)

Jacob Merrill commented

2014-11-04 21:58:19 +01:00

hmm, I can't seem to "Bump" physics to force it to update like I do in wrectified...

I'll keep trying and try and get a .blend working with the work around.

hmm, I can't seem to "Bump" physics to force it to update like I do in wrectified... I'll keep trying and try and get a .blend working with the work around.

Jacob Merrill commented

2014-11-04 22:05:52 +01:00

Ok, just add

object.worldPosition.z+=100

right before parenting,

I know it's not a real fix, but it works...

Ok, just add object.worldPosition.z+=100 right before parenting, I know it's not a real fix, but it works...

Jacob Merrill commented

2014-11-04 22:24:45 +01:00

ok,

Actual fix

set character to compound,

and use

object.setParent(character,True,False)

tada

ok, Actual fix set character to compound, and use object.setParent(character,True,False) tada![collission_bug_workAroundusingCompound.blend](https://archive.blender.org/developer/F121975/collission_bug_workAroundusingCompound.blend)

Jacob Merrill commented

2015-01-10 05:24:45 +01:00

This bug still exists, it emerged in my latest BGMC game , metroid 64

parenting a object to another left a ghost of the object behind,

https://www.youtube.com/watch?v=qUwCsiwEyp8

This bug still exists, it emerged in my latest BGMC game , metroid 64 parenting a object to another left a ghost of the object behind, https://www.youtube.com/watch?v=qUwCsiwEyp8

Praful Raj Nimmagadda commented

2015-01-26 18:41:46 +01:00

Added subscriber: @Praful