Anisotropic

Purpose:
To create directional variation in surface smoothness (radial vs. weft direction). Currently, this feature is only supported in ray-traced rendering.

Silk fabrics, for example, display different sheen characteristics when viewed from different directions:

• When viewed vertically along the warp, a glossy reflection appears.

• When viewed horizontally across the warp, the surface appears more matte.

As light hits the surface from various directions, the reflected light varies depending on the roughness along the tangent and bitangent directions.
In areas with lower roughness, reflections are more concentrated; in directions with higher roughness, reflections are more scattered.
Anisotropy defines this directional dependency of reflectivity.

Operation Method:
Object Browser ▶ Fbric▶ Property Editor ▶ Glossiness Map ▶ Anisotropic

Application Scenario:
Used in the rendering of silk or satin fabrics to realistically reproduce directional sheen and texture variation in garments.

Improve Anisotropic Fur/Hair Texture Support

Based on the existing anisotropic effects of hair fibers, independent anisotropic rendering support for the base fabric of fur is added. This enables more realistic simulation of hair surface structures and gloss, addressing the issue of mismatched reflections between the base material and fur during rendering.

Operation Method: Property Editor ▶ Textile ▶ Gloss Map ▶ Anisotropic

Application Scenarios: Rendering the material layering of leather bases and long fur in fur coats, achieving physical-level light-shadow matching between fur and base materials to enhance the visual fidelity of high-precision models.