Grease Pencil Fill Tool crashes with Metal GPU Backend #105059

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Owen-Lewery · 2023-02-22T03:41:35+01:00

Owen-Lewery commented

2023-02-22 03:41:35 +01:00

System Information
Operating system: macOS Monteray 12.6.2
Model: Macbook Pro 15,1 6-core i9
Graphics card: Radeon Pro 560X 4 GB

Blender Version
Broken: 3.5.0 Beta (2023-02-19 and 2023-02-21)
Worked: Works with OpenGL backend, Metal GPU Backend not available in 3.4

Short description of error
Filling a grease pencil shape immediately quits blender and produces a crash report.

Exact steps for others to reproduce the error

Create a new 2D animation project.
Go to prefs and make sure you have Metal selected for GPU Backend. (restart if you had to change it)
Draw four overlapping edges of a rectangle
Switch to fill tool.
Select a fill material (optional)
Click inside the rectangle and click again to fill it.

Blender quits with the attached crash report.
video at: http://allision.com/personal/owen/files/ScreenRecord-BlenderGPCrash.mov (I had crash report turned off so the included CR is from a separate session - but it does pop up. It's too large to attach here.)

**System Information** Operating system: macOS Monteray 12.6.2 Model: Macbook Pro 15,1 6-core i9 Graphics card: Radeon Pro 560X 4 GB **Blender Version** Broken: 3.5.0 Beta (2023-02-19 and 2023-02-21) Worked: Works with OpenGL backend, Metal GPU Backend not available in 3.4 **Short description of error** Filling a grease pencil shape immediately quits blender and produces a crash report. **Exact steps for others to reproduce the error** 1. Create a new 2D animation project. 2. Go to prefs and make sure you have Metal selected for GPU Backend. (restart if you had to change it) 2. Draw four overlapping edges of a rectangle 4. Switch to fill tool. 5. Select a fill material (optional) 6. Click inside the rectangle and click again to fill it. Blender quits with the attached crash report. video at: http://allision.com/personal/owen/files/ScreenRecord-BlenderGPCrash.mov (I had crash report turned off so the included CR is from a separate session - but it does pop up. It's too large to attach here.)

blender_crash_report.txt

230 KiB

fill_tool_metal_bug.blend

985 KiB

Owen-Lewery added the

labels 2023-02-22 03:41:36 +01:00

Pratik Borhade commented

2023-02-22 03:54:00 +01:00

@mano-wii , can you confirm the crash?

Blender Bug Reporter referenced this issue

2023-02-22 12:17:30 +01:00

Grease Pencil : App crashed after releasing 2nd click in fill mode #104923

Germano Cavalcante commented

2023-02-22 15:16:39 +01:00

I can confirm.
It is caused by a compilation error of shader GPU_SHADER_GPENCIL_STROKE

2023-02-22 11:13:58.254937-0300 Blender[17081:68858] Compiler failed to build request
2023-02-22 11:13:58.255038-0300 Blender[17081:68858] Compile Error - Metal Shader Library (Stage: 2), error Error Domain=MTLLibraryErrorDomain Code=3 "program_source:1962:22: error: use of undeclared identifier 'geometry_out'
  vec4 tColor = vec4(geometry_out.mColor);
                     ^
program_source:1964:7: error: use of undeclared identifier 'geometry_out'
  if (geometry_out.mColor.a < 0) {
      ^
program_source:1966:25: error: use of undeclared identifier 'geometry_out'
    float dist = length(geometry_out.mTexCoord - center);
                        ^
" UserInfo={NSLocalizedDescription=program_source:1962:22: error: use of undeclared identifier 'geometry_out'
  vec4 tColor = vec4(geometry_out.mColor);
                     ^
program_source:1964:7: error: use of undeclared identifier 'geometry_out'
  if (geometry_out.mColor.a < 0) {
      ^
program_source:1966:25: error: use of undeclared identifier 'geometry_out'
    float dist = length(geometry_out.mTexCoord - center);
                        ^
}

I can confirm. It is caused by a compilation error of shader `GPU_SHADER_GPENCIL_STROKE` ``` 2023-02-22 11:13:58.254937-0300 Blender[17081:68858] Compiler failed to build request 2023-02-22 11:13:58.255038-0300 Blender[17081:68858] Compile Error - Metal Shader Library (Stage: 2), error Error Domain=MTLLibraryErrorDomain Code=3 "program_source:1962:22: error: use of undeclared identifier 'geometry_out' vec4 tColor = vec4(geometry_out.mColor); ^ program_source:1964:7: error: use of undeclared identifier 'geometry_out' if (geometry_out.mColor.a < 0) { ^ program_source:1966:25: error: use of undeclared identifier 'geometry_out' float dist = length(geometry_out.mTexCoord - center); ^ " UserInfo={NSLocalizedDescription=program_source:1962:22: error: use of undeclared identifier 'geometry_out' vec4 tColor = vec4(geometry_out.mColor); ^ program_source:1964:7: error: use of undeclared identifier 'geometry_out' if (geometry_out.mColor.a < 0) { ^ program_source:1966:25: error: use of undeclared identifier 'geometry_out' float dist = length(geometry_out.mTexCoord - center); ^ } ```

Germano Cavalcante added

and removed