Blender crashes using subsurf #60233

New Issue

Milan Jaros · 2019-01-06T14:08:11+01:00

Milan Jaros commented

2019-01-06 14:08:11 +01:00

System Information
Operating system: Debian9
Graphics card: Mesa

Blender Version
Broken: 1753177a

Short description of error

// Generate bi-cubic patch table for the limit surface.
// TODO(sergey): Ideally we would want to expose end-cap settings via
// C-API to make it more generic. Currently it matches old Blender's
// subsurf code.
PatchTableFactory::Options patch_options(level);
patch_options.SetEndCapType(PatchTableFactory::Options::ENDCAP_BSPLINE_BASIS);
patch_options.useInfSharpPatch = true;
patch_options.generateFVarTables = has_face_varying_data;
patch_options.generateFVarLegacyLinearPatches = false;
const PatchTable* patch_table = PatchTableFactory::Create( *refiner, patch_options); <---- it crashes here.

Exact steps for others to reproduce the error
Blender crashes by loading scene Spring: 01_035, 01_040.

**System Information** Operating system: Debian9 Graphics card: Mesa **Blender Version** Broken: 1753177a **Short description of error** > // Generate bi-cubic patch table for the limit surface. > // TODO(sergey): Ideally we would want to expose end-cap settings via > // C-API to make it more generic. Currently it matches old Blender's > // subsurf code. > PatchTableFactory::Options patch_options(level); >patch_options.SetEndCapType(PatchTableFactory::Options::ENDCAP_BSPLINE_BASIS); > patch_options.useInfSharpPatch = true; > patch_options.generateFVarTables = has_face_varying_data; >patch_options.generateFVarLegacyLinearPatches = false; >const PatchTable* patch_table = PatchTableFactory::Create( *refiner, patch_options); <---- it crashes here. **Exact steps for others to reproduce the error** Blender crashes by loading scene Spring: 01_035, 01_040.

Milan Jaros commented

2019-01-06 14:08:11 +01:00

Added subscriber: @MilanJaros

Sergey Sharybin was assigned by Milan Jaros

2019-01-06 14:09:44 +01:00

Milan Jaros commented

2019-01-06 14:11:15 +01:00

Added subscriber: @brecht

Sergey Sharybin commented

2019-01-07 11:30:22 +01:00

@MilanJaros, i've worked around the crash by tweaking an actual object which was causing OpenSubdiv to crash. We are looking into a more robust solution, but that'd take a bit of time.

Here is a way more simple file. Steps to crash:

Open the file.
Change Quality to 1.
If that doesn't crash immediately, toggle edit mode.

cookie.blend

@MilanJaros, i've worked around the crash by tweaking an actual object which was causing OpenSubdiv to crash. We are looking into a more robust solution, but that'd take a bit of time. Here is a way more simple file. Steps to crash: - Open the file. - Change Quality to 1. - If that doesn't crash immediately, toggle edit mode. [cookie.blend](https://archive.blender.org/developer/F6208681/cookie.blend)

Sergey Sharybin commented

2019-01-07 11:33:45 +01:00

Closed as duplicate of blender/blender#59395

Sergey Sharybin closed this issue

2019-01-07 11:33:45 +01:00

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