Expressive Shading

MOTIVATION: Design techniques that manipulate appearance due to material & lighting at once. Preserve stylistic choices as well as directional and/or spatial appearance variations. INSPIRATION: Sloan et al. LitSphere and its adaptations in ZBrush, MatCaps. Fleming et al. perceptual experiments on material perception. Hogarth’s book “Dynamic Light and Shade”. Local Shape Editing at the Compositing … Read more

Radiance Tweaking

MOTIVATION: Understand interactions between illumination, shape and materials with a differential analysis. Enhance, manipulate and efficiently render 3D scenes in global illumination settings. INSPIRATION: Koenderink et al. analysis of highlights produced by different materials. Ramamoorthi et al. first-order analysis of the rendering equation. Fleming et al. perceptual experiments on shape-from-reflections.   Optimizing BRDF Orientations for … Read more