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Anisotropy Disc Test

Tags

extension, testing

Extensions Used

  • KHR_materials_anisotropy

Summary

This model tests the texturemap for KHR_materials_anisotropy.

Operations

Screenshot

screenshot
Screenshot from glTF Sample Viewer with the environment Pisa.

Description

This model tests the main texturemap for KHR_materials_anisotropy. It has the following features:

  • An array of base material roughness values are tested with the same texturemap each time.

  • The upper-left quadrant tests a disc-shaped anisotropic pattern at a strength of about 3%.

  • The upper-right quadrant tests a disc-shaped anisotropic pattern at a strength of about 10%.

  • The lower-right quadrant tests a disc-shaped anisotropic pattern at a full strength.

  • The lower-left quadrant tests a disc-shaped anisotropic pattern with a gradient strength, starting at zero around the edges and increasing to full strength in the center.

Per the anisotropy specification, anisotropic strength increases the material's roughness along a particular direction. Therefore, zero base roughness with full-strength anisotropy displays the most pronounced result. Full 1.0 base roughness cannot increase more, and does not show any effects from anisotropy.

Legal

© 2023, Public. CC0 1.0 Universal

  • Eric Chadwick for Everything

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