KHRMaterialsDispersion

KHR_materials_dispersion defines dispersion on a glTF PBR material.

Figure: Prisms demonstrating volumetric refraction and dispersion, for varying values of dispersion and IOR. Source: Khronos Group, rendered in Adobe Stager.

Dispersion enables configuring the strength of the angular separation of colors (chromatic aberration) transmitting through a relatively clear volume. It is an enhancement to the default KHR_materials_volume transmission model which assumes no dispersion.

Properties:

• Dispersion

Example

import { KHRMaterialsDispersion, Dispersion } from '@gltf-transform/extensions';

// Create an Extension attached to the Document.
const dispersionExtension = document.createExtension(KHRMaterialsDispersion);

// Create Dispersion property.
const dispersion = dispersionExtension.createDispersion().setDispersion(1.0);

// Assign to a Material.
material.setExtension('KHR_materials_dispersion', dispersion);