Curve deform with shape keys buggy #86505

New Issue

Graeme Chegwidden · 2021-03-11T18:03:18+01:00

Graeme Chegwidden commented

2021-03-11 18:03:18 +01:00

Operating system: Windows 10
Graphics card: GTX 1080i

Found this issue in 2.8, 2.90, 2.91, 2.92

Curve deform with shape keys buggy

Add a curve, path or bezier, scale it and rotate it 90 degrees. Apply the transformations. Add a sphere. Create a shape key of it unchanged, then stretch it out along X and make another shape key.

Add a curve modifier to the sphere and bind it to the curve. Fail!

Now do it again but don't scale or rotate the the curve. It works.

My workaround after hours of experimenting is to rather change the size and orientation of the curve by moving and rotating the control points.

Operating system: Windows 10 Graphics card: GTX 1080i Found this issue in 2.8, 2.90, 2.91, 2.92 **Curve deform with shape keys buggy** Add a curve, path or bezier, scale it and rotate it 90 degrees. Apply the transformations. Add a sphere. Create a shape key of it unchanged, then stretch it out along X and make another shape key. Add a curve modifier to the sphere and bind it to the curve. Fail! Now do it again but don't scale or rotate the the curve. It works. My workaround after hours of experimenting is to rather change the size and orientation of the curve by moving and rotating the control points.

Graeme Chegwidden commented

2021-03-11 18:03:18 +01:00

Added subscriber: @Ozyris

Germano Cavalcante commented

2021-03-12 21:55:24 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2021-03-12 21:55:24 +01:00

I'm confused by the steps to reproduce the problem. Could you provide the simple file by showing it?

Pratik Borhade commented

2021-03-14 13:35:21 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Graeme Chegwidden commented

2021-03-17 19:07:07 +01:00

Sorry about the delay in responding. Deadlines. This gives a rough idea of what I was wanting to do. Imagine a bunch of these radiating out like a fountain from a central point. I tried a number of ways to make it so that I could vary the lengths and shapes of the curves too. With one curve un-rotated and in one plane I can do what I wanted. But duplicating it and modifying it proved impossible. To get the job finished by deadline I had to superimpose an animated 2D version I made in Photoshop.

It seems to me this should be possible. Maybe it's me not knowing enough yet?

Thank you for responding to my query.

Sorry about the delay in responding. Deadlines![Follow_Curve_Problem.blend](https://archive.blender.org/developer/F9896752/Follow_Curve_Problem.blend). This gives a rough idea of what I was wanting to do. Imagine a bunch of these radiating out like a fountain from a central point. I tried a number of ways to make it so that I could vary the lengths and shapes of the curves too. With one curve un-rotated and in one plane I can do what I wanted. But duplicating it and modifying it proved impossible. To get the job finished by deadline I had to superimpose an animated 2D version I made in Photoshop. It seems to me this should be possible. Maybe it's me not knowing enough yet? Thank you for responding to my query.

Ankit Meel commented

2021-03-28 17:09:52 +02:00

Changed status from 'Needs User Info' to: 'Needs Triage'

Philipp Oeser commented

2021-04-13 09:04:42 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-04-13 09:04:42 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Philipp Oeser commented

2021-04-13 09:04:42 +02:00

It is still not clear to me what the intended behavior is here.

Could you provide more info? screenshots might help here.
So what we need to know is exact reproduction steps, something like this: "sausage 1 is working as intended, suasage 2 is still working as intended as long as XXX is not done, but as soon as XXX is done, the behavior is unexpected in that XXX" .

It is still not clear to me what the intended behavior is here. Could you provide more info? screenshots might help here. So what we need to know is exact reproduction steps, something like this: "sausage 1 is working as intended, suasage 2 is still working as intended as long as XXX is not done, but as soon as XXX is done, the behavior is unexpected in that XXX" .

Philipp Oeser commented

2021-05-03 18:14:38 +02:00

Changed status from 'Needs User Info' to: 'Archived'

Philipp Oeser closed this issue

2021-05-03 18:14:38 +02:00

Philipp Oeser commented

2021-05-03 18:14:38 +02:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

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Curve deform with shape keys buggy #86505