animated object with curve modifier cannot effect rigid body objects
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Description

System Information
windows 7, intel I7 8gbram nvidia 750

Blender Version
2.78

Short description of error
It seems that when you animated an object with rigid body with a curve modifier and it collides with other rigid bodies then it has not effect, however if the object with the curve modifier
is not animated it can collide and move the other rigid body object. please refer to blend file and play the animation and at the same time translate the non animated object with the curve modifier on the x axis and you will see that this does collide with the ixospheres.

Exact steps for others to reproduce the error
please refer to blend file and play the animation and at the same time translate the non animated object with the curve modifier on the x axis and you will see that this does collide with the ixospheres.

Details

Type
Bug

.blend file is missing.
Please reupload it if necessary.

When rigid body is an animated deforming mesh, you have to set its collision shape to mesh and enable deforming option.
Or you can change source of collisionshape from Deform to Final
Maybe you just missed it.

physics bug.rar
Here i tried reuploading the blend file.

I have indeed putted the collision shape to mesh en have enable derforming option and have tried to put the final option, nothing seem to work.
hope you can open the blend file now.

Kind regards,

Bastien Montagne (mont29) triaged this task as "Normal" priority.Fri, Jan 13, 10:57 AM

I did not succeed to extract the .blend from the archive.

physics bug.blend

physics bug.rar

I have uploaded it again. I hope you are able to open it now.

Kind regards,

I could open the .blend and now, I see the misinterpretation of rigid body settings.

The animated cylinder is set as an active rigid body.

But it is an animated rigid body that should not be influenced by gravity or deflected by collisions with other rigid bodies.
As is, it must be set as a passive rigid body. Although, it is animated.

As long as animated option is enabled for an active rigid body; its movement is guided by its animation.
When this option is disabled; movement will be continued by rigid body simulation.

For, active rigid bodies, the option is supposed to always be keyframed.
So, it is logical that your set-up conduct to a situation without effect.

There is no bug, here.

Thank you for your help.

Perhaps i should have asked the blender community first.

My apologies for using developers time :(

Many thanks though.

Kind regards,

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