A curvature based lightning model for quasi-global diffuse illumination

We proposed a number of tech- niques to achieve searching performance approaching the performance of the photon map: the kD-tree is constructed lazily based on the actual queries, it

We demonstrate the robustness of this technique on common global illumination problems and achieve a 10%-70% variance reduction over standard importance sampling for direct

The first picture in that row represents a rendering using the standard Lambertian model, the second one uses the model as described by Wolff, the third one is Oren-Nayar and the

Supposing that the surface is an ideal reflector or refractor, point ~l that receives the illumination of a light source after a single or multiple reflection or re- fraction can

Many of the public houses and cafes where the algorithms are not discussed contain customers who have kitchen (or bathroom, or garden) design software on their PC/Mac at home..

(d) ambient, diffuse/specular, shadow (e) ambient, diffuse/specular, shadow, textures (f) standard local illumination model Figure 5: Illumination components for the

Figure 1: Global illumination computed with global ray-bundles: Multiple diffuse bounces originating from natural illumina- tion (left), glossy reflections and arbitrary number of

•  Local AND global illumination model needed –  Path propagation - global model –  BRDF evaluation - local model. •