One of the models we have used to test the Radiosity As Textures (RAT) approach is available on-line.
The technical report and images below are also related with RAT.
Figure 4: (a) reference image (513x513 radiosity samples). (b) information
from a depth 2 quadtree (5x5 samples). (c) bilinear reconstruction (resampled
to 256x256). (d) bicubic reconstruction (resampled to 256x256).
Figure 5: (a) information from a depth 2 quadtree (5x5 samples). (b) first
phase bicubic reconstruction (resampled to 8x8). (c) hadware bilinear shading
(256x256). (d) hardware bicubic shading (256x256).
Figure 7: Grotto model: left=original model with 402 quadrilaterals;
middle=RAT; right=adaptive subdivision (150,000 triangles).

