Fall 2001 Research Work


Goal:
Caustics and
other global illumination
effects at an
interactive rate.


Currently, I'm working on using an Irradiance Volume type method to generate caustics in real time. Currently the caustics look quite good (as you can see from the image in the upper right corner), however frame-to-frame coherence is lacking, ocassionally causing annoying jumps.

Update October 2: Below are examples of the images before and after the jump. (Notice the sphere doesn't visibly move between the two sets -- opening the two images in XV and switching back and forth shows just the caustic moving).

Direction 2 Maps To Floor
Direction 14 Maps To Floor
Rendered Image:
Caustic Displayed (Interpolated in 3D from images below):
Caustic Grid Above (Interpolated in 2D):
Caustic Grid Below (Interpolated in 2D):
Caustic Grid Above:
Caustic Grid Below:

Last Modified: October 3, 2001

Chris Wyman (wyman@cs.utah.edu)