We've uploaded YafaRay-E v2.1.1 with some interesting improvements respect to v. 2.0.2. Main changes are (see changelog file):
- Fix for incorrect IBL lighting in World Background Texture when set to Angular
- Adjustment to the automatic intersection/shadow bias calculation formula to avoid black artifacts in the scenes with fine details.
- Fix for black dots (alpha=0) sometimes when using Mitchell/Lanzcos filters.
- Several advanced controls for material/texture preview.
- Fixed World Preview not updating correctly.
- Added Normal Coordinates for textures.
More information at this forum thread.