False positive error in Surface Deform modifier in some cases #51588

New Issue

msalv · 2017-05-22T16:14:55+02:00

msalv commented

2017-05-22 16:14:55 +02:00

System Information
intel i5 6400, Windows 10

Blender Version
2.78.5 hash f3d9f0c

Short description of error

Using the Surface Deform modifier, error messages of overlapping verts or concave faces in the target mesh appear, even when the mesh has no overlapping verts or concave faces. The target mesh follows the rules of the documentation https://wiki.blender.org/index.php/User:Lucarood/SurfaceDeform

What's more bizzare, even though the documentation states that the modified mesh has no restrictions, the error disappears depending on the modified mesh used.

Exact steps for others to reproduce the error

Since the error is hard to replicate from scratch with a new mesh, I've cut out the part of the mesh I was working on where the error happens.

Here are the things you can do to both replicate the error cases and the weird cases where the error doesn't happen.

Open the blend surfacedeform.blend
The modifiers are added, you just need to press the Bind button.
The target mesh is the blue one and the rest are examples of meshes with the Surface Deform modifier

Case 1- Select the mesh called Modified 1 (the green one) or Modified 2 and press the Bind button in the modifier stack. The overlaping verts error should appear

Case 2- Select the mesh called Other (yellow Suzanne) and press the bind button in the modifier stack. It works and the error doesn't appear. So, it's not the target mesh?

Case 3- Move or resize the meshes Modified 1 or Modified 2 far enough, and press the bind button. It works fine. If you only move them a little, the error appears again

Case 4- Revert the file if you made any changes first. Select the target mesh (blue), go into Edit Mode and press X> Edge Loops (I already selected the loop). Go to Object Mode and select the red mesh, Modified 2, and press Bind. This time the error message is about concave faces. The green mesh works fine without errors, though.

**System Information** intel i5 6400, Windows 10 **Blender Version** 2.78.5 hash f3d9f0c **Short description of error** Using the Surface Deform modifier, error messages of overlapping verts or concave faces in the target mesh appear, even when the mesh has no overlapping verts or concave faces. The target mesh follows the rules of the documentation https://wiki.blender.org/index.php/User:Lucarood/SurfaceDeform What's more bizzare, even though the documentation states that the modified mesh has no restrictions, the error disappears depending on the modified mesh used. **Exact steps for others to reproduce the error** Since the error is hard to replicate from scratch with a new mesh, I've cut out the part of the mesh I was working on where the error happens. Here are the things you can do to both replicate the error cases and the weird cases where the error doesn't happen. - Open the blend [surfacedeform.blend](https://archive.blender.org/developer/F606163/surfacedeform.blend) - The modifiers are added, you just need to press the Bind button. The target mesh is the blue one and the rest are examples of meshes with the Surface Deform modifier Case 1- Select the mesh called Modified 1 (the green one) or Modified 2 and press the Bind button in the modifier stack. The overlaping verts error should appear Case 2- Select the mesh called Other (yellow Suzanne) and press the bind button in the modifier stack. It works and the error doesn't appear. So, it's not the target mesh? Case 3- Move or resize the meshes Modified 1 or Modified 2 far enough, and press the bind button. It works fine. If you only move them a little, the error appears again Case 4- Revert the file if you made any changes first. Select the target mesh (blue), go into Edit Mode and press X> Edge Loops (I already selected the loop). Go to Object Mode and select the red mesh, Modified 2, and press Bind. This time the error message is about concave faces. The green mesh works fine without errors, though.

msalv commented

2017-05-22 16:14:55 +02:00

Changed status to: 'Open'

msalv commented

2017-05-22 16:14:55 +02:00

Added subscriber: @moisessalvador

Luca Rood was assigned by Sergey Sharybin

2017-05-22 16:19:22 +02:00

Luca Rood was unassigned by Dalai Felinto

2019-12-23 16:36:42 +01:00

Dalai Felinto commented

2019-12-23 16:36:42 +01:00

Added subscriber: @LucaRood-3

Philipp Oeser commented

2020-01-16 15:18:13 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2020-01-16 15:18:13 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Philipp Oeser closed this issue

2020-01-16 15:18:13 +01:00

Philipp Oeser self-assigned this 2020-01-16 15:18:13 +01:00

Philipp Oeser commented

2020-01-16 15:18:13 +01:00

Checked on this, all error messages on binding seem to be resolved and binding seems to behave normally.
Note: atm. you wont get modifier error messages in the UI, for that you'd need D6601: Fix (unreported) surface deform modifier not reporting its errors in the UI applied...

Anyways, this seems to have been resolved along the way, closing...
(feel free though to comment again if issues persist, we can always reopen in that case...)

Checked on this, all error messages on binding seem to be resolved and binding seems to behave normally. Note: atm. you wont get modifier error messages in the UI, for that you'd need [D6601: Fix (unreported) surface deform modifier not reporting its errors in the UI](https://archive.blender.org/developer/D6601) applied... Anyways, this seems to have been resolved along the way, closing... (feel free though to comment again if issues persist, we can always reopen in that case...)

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False positive error in Surface Deform modifier in some cases #51588