Subsurface modifier new "OpenSubdiv" method Issue #63791

New Issue

Aza · 2019-04-22T02:27:36+02:00

Aza commented

2019-04-22 02:27:36 +02:00

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 418.91

Blender Version
Broken: version: 2.80 (sub 53),
branch: blender2.7,
commit date: 2019-03-31 21:52,
hash: b936d7b16c
Worked: (optional)

Short description of error
Issues with the new "OpenSubdiv" modifier method.

Exact steps for others to reproduce the error

Add a simple plane mesh in Blender 2.8
UV unwrap it
Import a texture and apply it to your plane
Add a Subsurf modifier

Here is the issue in details.
I was doing some texture work on High-poly models, and when I applied the textures to my model, they were deformed in places.

I later learned that the method used in Subsurface modifiers was changed :

Would there be any way to bring back the old method ?
because this is going to break a LOT of my models.

**System Information** Operating system: Windows-10-10.0.17134 64 Bits Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 418.91 **Blender Version** Broken: version: 2.80 (sub 53), branch: blender2.7, commit date: 2019-03-31 21:52, hash: `b936d7b16c` Worked: (optional) **Short description of error** Issues with the new "OpenSubdiv" modifier method. **Exact steps for others to reproduce the error** - Add a simple plane mesh in Blender 2.8 - UV unwrap it - Import a texture and apply it to your plane - Add a Subsurf modifier Here is the issue in details. I was doing some texture work on High-poly models, and when I applied the textures to my model, they were deformed in places. ![image.png](https://archive.blender.org/developer/F6965416/image.png) ![image.png](https://archive.blender.org/developer/F6965422/image.png) ![image.png](https://archive.blender.org/developer/F6965424/image.png) I later learned that the method used in Subsurface modifiers was changed : ![image.png](https://archive.blender.org/developer/F6965412/image.png) Would there be any way to bring back the old method ? because this is going to break a LOT of my models.

Aza commented

2019-04-22 02:27:36 +02:00

Added subscriber: @Azagwen

Sebastian Parborg commented

2019-04-25 14:46:48 +02:00

Added subscribers: @Sergey, @ZedDB

Sergey Sharybin was assigned by Sebastian Parborg

2019-04-25 14:46:48 +02:00

Sebastian Parborg commented

2019-04-25 14:46:48 +02:00

@Sergey will other methods like the old one be available in the future?

Jacques Lucke commented

2019-04-29 14:02:50 +02:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2019-04-29 14:02:50 +02:00

@Azagwen, can you prepare an example .blend file, that shows the problem, please?

Aza commented

2019-04-29 14:16:40 +02:00

In #63791#667741, @JacquesLucke wrote:
@Azagwen, can you prepare an example .blend file, that shows the problem, please?

@JacquesLucke can I directly link the .blend that I used for the screenshots ?

> In #63791#667741, @JacquesLucke wrote: > @Azagwen, can you prepare an example .blend file, that shows the problem, please? @JacquesLucke can I directly link the .blend that I used for the screenshots ?

Jacques Lucke commented

2019-04-29 14:27:00 +02:00

yes, make sure that the textures are packed into the .blend file.

Aza commented

2019-04-29 16:20:36 +02:00

Here is the .blend in question, I just deleted every unnecessary element, only the parts that have the bug are left and the environment.
Subsurf_problem.blend
(tell me if you need anything else)

Here is the .blend in question, I just deleted every unnecessary element, only the parts that have the bug are left and the environment. [Subsurf_problem.blend](https://archive.blender.org/developer/F6991843/Subsurf_problem.blend) (tell me if you need anything else)

Sergey Sharybin was unassigned by Dalai Felinto

2019-12-23 16:34:38 +01:00

Piotr Ostrowski commented

2020-10-01 09:31:34 +02:00

Added subscriber: @ostry

Piotr Ostrowski commented

2020-10-01 09:31:34 +02:00

Needs to be rechecked https://developer.blender.org/rB443e42d may be fixing this.

Philipp Oeser removed the

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Subsurface modifier new "OpenSubdiv" method Issue #63791