KHR_texture_transform adds offset, rotation, and scale to TextureInfo properties.

Affine UV transforms are useful for reducing the number of textures the GPU must load, improving performance when used in techniques like texture atlases. UV transforms cannot be animated at this time.

Properties:

• Transform

Example

The TextureTransform class provides a single ExtensionProperty type, Transform, which may be attached to any TextureInfo instance. For example:

import { TextureTransform } from '@gltf-transform/extensions';

// Create an Extension attached to the Document.
const transformExtension = document.createExtension(TextureTransform)
    .setRequired(true);

// Create a reusable Transform.
const transform = transformExtension.createTransform()
    .setScale([100, 100]);

// Apply the Transform to a Material's baseColorTexture.
document.createMaterial()
    .setBaseColorTexture(myTexture)
    .getBaseColorTextureInfo()
    .setExtension('KHR_texture_transform', transform);