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Sculpt Mode: Tip Roundness on Paint brush scales texture outside of bounds #106895

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opened 2023-04-13 12:06:07 +02:00 by Julien Kaspar · 8 comments
Julien Kaspar commented 2023-04-13 12:06:07 +02:00
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System Information
Operating system: Linux-6.2.10-gentoo-x86_64-AMD_Ryzen_Threadripper_1950X_16-Core_Processor-with-glibc2.36 64 Bits, X11 UI
Graphics card: Quadro GP100/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 530.41.03

Blender Version
Broken: version: 3.6.0 Alpha, branch: HEAD (modified), commit date: 2023-04-12 17:11, hash: 2b6c1600cf59
Worked: (newest version of Blender that worked as expected)

Short description of error
Recent fix for #104631 made this issue clearer.
When reducing the Tip Roundness brush setting, the texture becomes not properly mapped to the brush radius. It's too big and out of bounds of the square shape.
The texture size should stay consistent.

Screenshot_20230413_115627.png

Exact steps for others to reproduce the error

  • Subdivide a primitive mesh many times and apply the modifier
  • Enter sculpt mode and make the Paint brush active
  • Assign any arbitrary texture to the brush
  • Set the stroke method to Anchored or Drag Dot
  • Lower the Tip Roundness in the brush settings
  • Apply a stroke on the surface
**System Information** Operating system: Linux-6.2.10-gentoo-x86_64-AMD_Ryzen_Threadripper_1950X_16-Core_Processor-with-glibc2.36 64 Bits, X11 UI Graphics card: Quadro GP100/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 530.41.03 **Blender Version** Broken: version: 3.6.0 Alpha, branch: HEAD (modified), commit date: 2023-04-12 17:11, hash: `2b6c1600cf59` Worked: (newest version of Blender that worked as expected) **Short description of error** Recent fix for #104631 made this issue clearer. When reducing the Tip Roundness brush setting, the texture becomes not properly mapped to the brush radius. It's too big and out of bounds of the square shape. The texture size should stay consistent. ![Screenshot_20230413_115627.png](/attachments/f16d4af8-f6e6-4770-acfa-365f244d60a2) **Exact steps for others to reproduce the error** - Subdivide a primitive mesh many times and apply the modifier - Enter sculpt mode and make the Paint brush active - Assign any arbitrary texture to the brush - Set the stroke method to Anchored or Drag Dot - Lower the Tip Roundness in the brush settings - Apply a stroke on the surface
Screenshot_20230413_115627.png
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Julien Kaspar added the
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Pratik Borhade commented 2023-04-13 16:08:47 +02:00
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Can confirm.

Can confirm.
Pratik Borhade added
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 labels 2023-04-13 16:09:00 +02:00
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 labels 2023-04-18 15:44:38 +02:00
Joseph Eagar commented 2023-04-29 02:32:09 +02:00
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Is this still happening?

Is this still happening?
Julien Kaspar commented 2023-04-29 19:15:31 +02:00
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I can still reproduce this in the latest nightly build.

I can still reproduce this in the latest nightly build.
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 labels 2023-05-14 18:33:30 +02:00
Julien Kaspar commented 2023-05-15 10:50:44 +02:00
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@JosephEagar This isn't properly fixed. Now the texture is too small when the tip roundness is less than 1. This causes repeating of the texture within the brush radius

@JosephEagar This isn't properly fixed. Now the texture is too small when the tip roundness is less than 1. This causes repeating of the texture within the brush radius
Screenshot_20230515_104949.png
550 KiB
Screenshot_20230515_104949.png
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 labels 2023-05-15 10:50:48 +02:00
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 labels 2023-05-31 10:10:35 +02:00
Julien Kaspar commented 2023-05-31 10:10:52 +02:00
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As discussed in the recent module meeting, this will be set to high priority.

As discussed in the recent module meeting, this will be set to high priority.
Thomas Dinges commented 2023-06-19 16:28:54 +02:00
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We are two days away from Bcon4, any chance to fix this still @JosephEagar ?

We are two days away from Bcon4, any chance to fix this still @JosephEagar ?
Joseph Eagar commented 2023-06-21 11:03:02 +02:00
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This is not a bug. The texture is scaled to fit within the brush radius as tip_roundness goes to 1. The reason it repeats is because the default setting of image textures is to repeat; obviously if you fit a square inside of a circle there will be space outside the square.

This is not a bug. The texture is scaled to fit within the brush radius as tip_roundness goes to 1. The reason it repeats is because the default setting of image textures is to repeat; obviously if you fit a square inside of a circle there will be space outside the square.
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 label 2023-06-21 11:03:05 +02:00
Joseph Eagar commented 2023-06-21 11:03:05 +02:00
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This is not a bug. The texture is scaled to fit within the brush radius as tip_roundness goes to 1. The reason it repeats is because the default setting of image textures is to repeat; obviously if you fit a square inside of a circle there will be space outside the square.

This is not a bug. The texture is scaled to fit within the brush radius as tip_roundness goes to 1. The reason it repeats is because the default setting of image textures is to repeat; obviously if you fit a square inside of a circle there will be space outside the square.
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Reference: blender/blender#106895
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