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Curvature Smooth | Substance 3D Designer

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          3. Patterns
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        3. Filters
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    6. FX-maps
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      2. How it works
      3. The Iterate node
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      5. Using Substance function graphs in FX-Maps
        1. Using Substance function graphs
          in FX-Maps
        2. Iterate and $number variable
        3. Using the Sampler nodes
        4. Using the Set/Sequence nodes
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  10. Bakers
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  11. Best practices
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    2. Filesize reduction guidelines
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  12. Pipeline and project configuration
    1. Pipeline and project configuration
    2. Project configuration files - SBSPRJ
    3. Configuration list - SBSCFG
    4. User preferences - Automating setup
    5. Retrieving the installation path
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  13. Color management
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  14. Package metadata
  15. Scripting
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    18. Porting previous plugins
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  16. Technical issues
    1. Technical issues
    2. Warnings and errors
    3. Cannot create/load a project
    4. Application does not start
    5. Crash when rendering graphs
    6. Parameters not working as expected
    7. Incorrect image output
    8. 3D View issues
    9. User interface issues
    10. Python issues
    11. Substance model graph feature is missing
  17. Release notes
    1. Release notes
    2. All changes
    3. Version 14.1
    4. Version 14.0
    5. Version 13.1
    6. Version 13.0
    7. Version 12.4
    8. Version 12.3
    9. Version 12.2
    10. Version 12.1
    11. Version 11.3
    12. Version 11.2
    13. Version 2021.1 (11.1)
    14. Old versions
      1. Old versions
      2. Version 2020.2 (10.2)
      3. Version 2020.1 (10.1)
      4. Version 2019.3 (9.3)
      5. Version 2019.2 (9.2)
      6. Version 2019.1 (9.1)
Curvature Smooth node icon

In: Filters > Effects

Description

Computes the curvature of a surface described by a normal map.

A curvature map represents the concave and convex areas of a surface.
Flat areas are 50% gray. Convex areas are brighter, while concave areas are darker.

The concave and convex areas are also split into their own outputs, for easier selection or masking of areas based on those characteristics.

Tip:

Look at Curvature for a sharper version, or Curvature Sobel if you need more options.

Input
connectors

Output
connectors

Parameters

Input connectors

Normal

Color

PRIMARY

The normal map describing the surface which curvature should be computed.

Output connectors

Curvature

Grayscale

The curvature map computed out of the input normal map.

 

Flat areas are 50% gray. Convex areas are brighter, while concave areas are darker.

Convexity

Grayscale

The convexity map computed out of the input normal map.

 

The more convex an area is, the brighter it is in the map.
Flat or concave areas are black.

Concavity

Grayscale

The concavity map computed out of the input normal map.

 

The more concave an area is, the brighter it is in the map.
Flat or convex areas are black.

Parameters

Normal format

Integer

The format of the input normal map. Effectively inverts the green channel.

  • DirectX: The Y axis points up
  • OpenGL: The Y axis points down

Examples

curvature_smooth_example_1_before
curvature_smooth_example_1_after
Curvature smooth: Example 2

Curvature smooth: Example 3

curvature_smooth_example_4_before
curvature_smooth_example_4_after
Curvature smooth: Example 4

Curvature smooth: Example 5

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