How to get the texture offset and repeat values?

[CITIZENDOT]

three.js has Texture.offset and Texture.repeat. I know this is not included in GLTF spec, I just want to know if there is a way to access these properties.

[donmccurdy]

In glTF this is handled by the KHR_texture_transform extension. You can see glTF Transform's implementation here:

• https://gltf-transform.dev/modules/extensions/classes/KHRTextureTransform
• https://gltf-transform.dev/modules/core/classes/TextureInfo

To get the offset and scale of the base color texture, for example, you'd write:

const textureInfo = material.getBaseColorTextureInfo();
const transform = textureInfo.getExtension('KHR_texture_transform');

if (transform) {
  const offset = transform.getOffset();
  const rotation = transform.getRotation();
  const scale = transform.getScale(); // equivalent to THREE.Texture's .repeat property
}

[CITIZENDOT]

That worked. Thank you.