Geometry Nodes: SDF Grid filtering nodes

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This PR gives access to OpenVDB's level set filtering operations
through individual **SDF Grid** nodes.

- **Mean Curvature**: Smoothens high curvature areas more than flatter
  ones.
- **Laplacian**: Approximates mean curvature flow for true SDFs at lower
  computational cost.
- **Median**: Reduces noise while preserving sharp features.
- **Mean**: Fast separable averaging filter for general-purpose
  smoothing with linear computational complexity.
- **Offset**: Uniform dilation/erosion operation that shifts the SDF
  surface by a world-space distance.
- **Fillet**: Rounds off concave internal corners by operating only on
  regions with negative principal curvature.

Pull Request: https://projects.blender.org/blender/blender/pulls/147224

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This commit is contained in:

Brady Johnston

2025-10-06 17:54:25 +02:00

committed by Hans Goudey

parent d33a6a1723

commit 438b8c303e

12 changed files with 493 additions and 0 deletions

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