Rigid Body not works well with curve modifier #44375

New Issue

yellow foxz · 2015-04-13T21:29:35+02:00

yellow foxz commented

2015-04-13 21:29:35 +02:00

Blender Version
2.74

Short description of error
watch the cube not moving together with conveyor, cube should moving in direction same as conveyor moves. this is the result of using curve modifier, Do you have any idea how to make cube moves same direction of conveyor ?.

Exact steps for others to reproduce the error
Cicle_Conveyor.blend play animation

**Blender Version** 2.74 **Short description of error** watch the cube not moving together with conveyor, cube should moving in direction same as conveyor moves. this is the result of using curve modifier, Do you have any idea how to make cube moves same direction of conveyor ?. **Exact steps for others to reproduce the error** [Cicle_Conveyor.blend](https://archive.blender.org/developer/F161635/Cicle_Conveyor.blend) play animation

yellow foxz commented

2015-04-13 21:29:36 +02:00

Changed status to: 'Open'

yellow foxz commented

2015-04-13 21:29:36 +02:00

Added subscriber: @yellowfoxz

Sergej Reich was assigned by Julian Eisel

2015-04-13 22:12:27 +02:00

Julian Eisel commented

2015-04-13 22:12:27 +02:00

Added subscribers: @sreich, @JulianEisel

Julian Eisel commented

2015-04-13 22:12:27 +02:00

Assigning to @sreich to get his input. Do you think that's a bug, Sergej?

yellow foxz commented

2015-04-14 07:40:14 +02:00

coveyor.blend same as this one , how to solve this problem, box should falls by gravity at the end of conveyor .

[coveyor.blend](https://archive.blender.org/developer/F161744/coveyor.blend) same as this one , how to solve this problem, box should falls by gravity at the end of conveyor .

Sergej Reich commented

2015-04-14 15:13:34 +02:00

There are two things here:
If you want the rigid body to deform, you have to check the "Deforming" checkbox.
The second problem is that you actually move the deforming rigid body, so even if it looks like it's standing still to the simulation the object is moving in the direction it's animated (I understand that that's what you need to do for the curve deformation to work). So the second file will work, but the circle will still fail.

It should be possible to fix this, but currently it's a limitation.

There are two things here: If you want the rigid body to deform, you have to check the "Deforming" checkbox. The second problem is that you actually move the deforming rigid body, so even if it looks like it's standing still to the simulation the object is moving in the direction it's animated (I understand that that's what you need to do for the curve deformation to work). So the second file will work, but the circle will still fail. It should be possible to fix this, but currently it's a limitation.

Julian Eisel commented

2015-04-14 15:40:47 +02:00

Changed status from 'Open' to: 'Archived'

Julian Eisel closed this issue

2015-04-14 15:40:47 +02:00

Julian Eisel commented

2015-04-14 15:40:47 +02:00

Closing as todo then.

Thanks for the report nevertheless @yellowfoxz :)

Closing as todo then. Thanks for the report nevertheless @yellowfoxz :)

Christopher Burns commented

2021-04-15 16:08:02 +02:00