A model shows artifacts in the sculpt mode. #66712

New Issue

Yuriy · 2019-07-11T17:10:24+02:00

Yuriy commented

2019-07-11 17:10:24 +02:00

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 417.35

Blender Version
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-07-11 11:00, hash: d663048696
Worked: (optional)

Short description of error
A model shows artifacts in the sculpt mode.

bug.blend

Exact steps for others to reproduce the error
If you add the Multires modifier to this model and go into sculpt mode, you can see the artifacts.

**System Information** Operating system: Windows-10-10.0.17134 64 Bits Graphics card: GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 417.35 **Blender Version** Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-07-11 11:00, hash: `d663048696` Worked: (optional) **Short description of error** A model shows artifacts in the sculpt mode. ![Capture.PNG](https://archive.blender.org/developer/F7593349/Capture.PNG) [bug.blend](https://archive.blender.org/developer/F7593351/bug.blend) **Exact steps for others to reproduce the error** If you add the Multires modifier to this model and go into sculpt mode, you can see the artifacts.

Yuriy commented

2019-07-11 17:10:24 +02:00

Added subscriber: @YuraKharitonow

Sergey Sharybin was assigned by Sebastian Parborg

2019-07-11 17:15:58 +02:00

Sergey Sharybin commented

2019-07-11 18:25:12 +02:00

Added subscriber: @fclem

Sergey Sharybin commented

2019-07-11 18:25:12 +02:00

@fclem, is that the normals in grid are wrong, or is it copying them to the draw batch where the issue is?

Clément Foucault commented

2019-07-11 18:32:33 +02:00

To me it's the normals in grid.

The draw batch code is pretty straight forward.

          buffers->vert_buf, g_vbo_id.pos, vbo_index, CCG_elem_co(key, elem));

      short no_short[3];
      normal_float_to_short_v3(no_short, CCG_elem_no(key, elem));
      GPU_vertbuf_attr_set(buffers->vert_buf, g_vbo_id.nor, vbo_index, no_short);```

To me it's the normals in grid. The draw batch code is pretty straight forward. ``` GPU_vertbuf_attr_set( ``` buffers->vert_buf, g_vbo_id.pos, vbo_index, CCG_elem_co(key, elem)); ``` ``` short no_short[3]; normal_float_to_short_v3(no_short, CCG_elem_no(key, elem)); GPU_vertbuf_attr_set(buffers->vert_buf, g_vbo_id.nor, vbo_index, no_short);```

blender-admin commented

2019-07-15 11:28:37 +02:00

This issue was referenced by 9cdd2df277

This issue was referenced by 9cdd2df277b3b9b2949aee4f869b276f79ca17f4

Sergey Sharybin commented

2019-07-15 17:39:25 +02:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2019-07-15 17:39:25 +02:00

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Reference: blender/blender#66712

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A model shows artifacts in the sculpt mode. #66712