Surface Deform Modifier is Not Binding or Updating #69339

New Issue

Amaan T Redmond · 2019-08-30T21:43:40+02:00

Amaan T Redmond commented

2019-08-30 21:43:40 +02:00

{F7711196}System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 417.35

Blender Version
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: f6cb5f5449
Worked: (optional)

Short description of error
For a Marvelous Designer + Blender Workflow to stay out of Maya, set up shape keys for a flat version of the garment so it deforms to the
wrapped version of the garment. When trying to bind the retopologized version, done in blender, nothing appears to happen.
Bind doesn't show unbind notifying me if anything happened, neither does the screen so I'm unsure if I'm doing something wrong or if
this functionality that is needed for this just is not working for some reason.

Exact steps for others to reproduce the error

Check NovaClothes Flat shape key and turn value to 1 to see if it is functioning.
Either bind the Plane to NovaClothes Flat at 16 Interpolation falloff, alternatively delete modfier and create one targeting NovaClothesFlat with 16
falloff.
Hit the bind on the modifier, and see how it doesn't become unbind.
Click onto NovaClothesFlat using any method while in object mode
Set shape key value of NovaClothesFlat to 1 for NovaClothes.002
See no change in the Plane and that the surface deform modifier appears to have no affect.

{[F7711196](https://archive.blender.org/developer/F7711196/ClothesBind.blend)}**System Information** Operating system: Windows-10-10.0.17134 64 Bits Graphics card: GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 417.35 **Blender Version** Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: `f6cb5f5449` Worked: (optional) **Short description of error** For a Marvelous Designer + Blender Workflow to stay out of Maya, set up shape keys for a flat version of the garment so it deforms to the wrapped version of the garment. When trying to bind the retopologized version, done in blender, nothing appears to happen. Bind doesn't show unbind notifying me if anything happened, neither does the screen so I'm unsure if I'm doing something wrong or if this functionality that is needed for this just is not working for some reason. **Exact steps for others to reproduce the error** 1. Check NovaClothes Flat shape key and turn value to 1 to see if it is functioning. 2. Either bind the Plane to NovaClothes Flat at 16 Interpolation falloff, alternatively delete modfier and create one targeting NovaClothesFlat with 16 falloff. 3. Hit the bind on the modifier, and see how it doesn't become unbind. 4. Click onto NovaClothesFlat using any method while in object mode 5. Set shape key value of NovaClothesFlat to 1 for NovaClothes.002 6. See no change in the Plane and that the surface deform modifier appears to have no affect.

Amaan T Redmond commented

2019-08-30 21:43:40 +02:00

Added subscriber: @GlaiveSin

Abid Maqbool commented

2019-08-31 08:35:55 +02:00

Added subscriber: @AbidMaqbool

Abid Maqbool commented

2019-08-31 08:35:55 +02:00

Just check file... Blender 2.81 (sub 4) 2019-08-30 19:33 6726e98fe2

When Clicking Bind:

got error:

ERROR (bke.modifier): c:\b\win64_cmake_vs2017\win64_cmake_vs2017\blender.git\source\blender\blenkernel\intern\modifier.c:410 modifier_setError: Target contains concave polygons

Latter checking... Thanks

Just **check file**... **Blender 2.81 (sub 4)** `2019-08-30 19:33` 6726e98fe2 When Clicking **Bind**: ![image.png](https://archive.blender.org/developer/F7711641/image.png) **got error:** ``` ERROR (bke.modifier): c:\b\win64_cmake_vs2017\win64_cmake_vs2017\blender.git\source\blender\blenkernel\intern\modifier.c:410 modifier_setError: Target contains concave polygons ``` Latter **checking**... Thanks

Abid Maqbool commented

2019-08-31 09:34:02 +02:00

IMO, not a bug!
It's how Surface Deform Modifier works (target must be not concave)

Here, is an example:

On Left Side, Same Object with correct faces(concave) (I can apply Surface Deform Modifier -> Bind)
On Right Side Same Object with concave faces I get exact same error.
Concave & Convex Example.blend
Maybe can help you: https://www.youtube.com/watch?v=QjzBndN5ayA

You can solve it, manually/automatically:
https://docs.blender.org/manual/en/latest/modeling/meshes/editing/cleanup.html#split-concave-faces

@GlaiveSin Let we know, you resolved it?
Thanks! Have a nice day!!!

IMO, not a bug! It's how **Surface Deform Modifier** works (**target** must be **not concave**) Here, is **an example**: ![image.png](https://archive.blender.org/developer/F7711693/image.png) * On **Left Side**, Same Object with **correct faces(concave)** (I can apply **Surface Deform Modifier -> Bind**) * On **Right Side** Same Object with **concave faces** I get exact **same error**. [Concave & Convex Example.blend](https://archive.blender.org/developer/F7711697/Concave___Convex_Example.blend) Maybe **can help you**: https://www.youtube.com/watch?v=QjzBndN5ayA You can **solve it**, **manually/automatically**: https://docs.blender.org/manual/en/latest/modeling/meshes/editing/cleanup.html#split-concave-faces @GlaiveSin **Let we know, you resolved it?** Thanks! Have a nice day!!!

Amaan T Redmond commented

2019-08-31 11:44:32 +02:00

Hello Abid,

Thank you very much for clarifying, it was infact user error. I didn't realize that the Target Mesh with the shape keys needed to not have non-manifold topology and after fixing this. I got the objects to deform Thank you very much.
I'll mention the great support from blender and you specifically when the game comes out and if anyone asks who has helped.

Sincerely,
Average Blender User.

Status Closed.

Hello Abid, Thank you very much for clarifying, it was infact user error. I didn't realize that the Target Mesh with the shape keys needed to not have non-manifold topology and after fixing this. I got the objects to deform Thank you very much. I'll mention the great support from blender and you specifically when the game comes out and if anyone asks who has helped. Sincerely, Average Blender User. Status Closed.

Abid Maqbool commented

2019-08-31 17:30:36 +02:00

Changed status from 'Open' to: 'Archived'

Abid Maqbool closed this issue

2019-08-31 17:30:36 +02:00

Abid Maqbool self-assigned this 2019-08-31 17:30:36 +02:00

Abid Maqbool commented

2019-08-31 17:30:36 +02:00

Thanks for reporting back!

Lukas-Schafer-2 commented

2023-12-06 11:24:59 +01:00

Found a workaround by hiding the problematic geometry with the "Mask" modifier.

The "Mask" modifier must be active; otherwise, the bound mesh will explode but you can save the deformations/animation by exporting it: File -> Export -> Pointcache (.pc2)
(uncheck "Convert to Y-up" checkbox)
You can disable the "Mask" and "Surface Deform" Modifier now.
Add the deformations back to your object with a "MeshCache" Modifier.

With this mask modifier technique, you can also localize which part of your mesh is preventing the bind.

Found a workaround by hiding the problematic geometry with the "Mask" modifier. The "Mask" modifier must be active; otherwise, the bound mesh will explode but you can save the deformations/animation by exporting it: File -> Export -> Pointcache (.pc2) (uncheck "Convert to Y-up" checkbox) You can disable the "Mask" and "Surface Deform" Modifier now. Add the deformations back to your object with a "MeshCache" Modifier. With this mask modifier technique, you can also localize which part of your mesh is preventing the bind.

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Surface Deform Modifier is Not Binding or Updating #69339