Directional Light Dispersion Test Dragon Attenuation

Information and Downloads

glTF information extracted with gltf-transform.

USDZ verification and preview image created with usdchecker and usdrecord.

USD Viewer by Needle

Generator Khronos glTF Blender I/O v3.6.27 with hand-edits for KHR_materials_dispersion
Copyright CC-BY 4.0 Copyright 2023 Analytical Graphics, Inc. Model by Ed Mackey. Cloth backdrop CC0 by Adobe Inc.
Source KhronosGroup/glTF-Sample-Assets
File size 2.20 MB

Description

This asset is part of the KhronosGroup/glTF-Sample-Assets asset repository.

Description sourceAsset source

Dispersion Test

Tags

extension, testing

Extensions Used

  • KHR_materials_transmission
  • KHR_materials_volume
  • KHR_materials_ior
  • KHR_materials_dispersion

Summary

This model tests the KHR_materials_dispersion extension.

Operations

Screenshot

screenshot

Description

This model tests the effects of the KHR_materials_dispersion extension.

Dispersion requires volumetric transmission (KHR_materials_transmission with KHR_materials_volume) and also scales with IOR (KHR_materials_ior). It changes the effective IOR values for different frequencies of light, producing an effect known as chromatic aberration. In the right-most column, the rainbow-like effect is most pronounced.

Legal

© 2023, AGI. CC BY 4.0 International

  • Ed Mackey for Everything