Interface GLTFMaterialsAnisotropyExtension

The anisotropy strength. When the anisotropyTexture is present, this value is multiplied by the texture's B channel. Default to 0.

The rotation of the anisotropy in tangent, bitangent space, measured in radians counter-clockwise from the tangent. When the anisotropyTexture is present, this value provides additional rotation to the vectors in the texture. Default to 0.

The anisotropy texture. R and G channels represent the anisotropy direction in [-1, 1] tangent, bitangent space to be rotated by the anisotropy rotation. The B channel contains strength as [0, 1] to be multiplied by the anisotropyStrength.