home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
SIGGRAPH 2001: Conference Proceedings
/
SIGGRAPH 2001: Conference Proceedings.iso
/
mac
/
papers
/
ramamoorthi-aer
/
suppmtl
/
readme.usr
Wrap
Text File
|
2001-05-14
|
3KB
|
58 lines
This describes the CDROM contents for the paper
"An Efficient Representation for Irradiance Environment Maps" by
Ramamoorthi and Hanrahan, SIGGRAPH 2001.
All of this material and more is also available on our website at
http://graphics.stanford.edu/papers/envmap/
The files in the CDROM are organized as follows:
envmap.pdf : PDF version of final siggraph paper
A link to the related Journal of the Optical Society of America paper
that introduces the theory is found off our web page.
images/ : High-resolution images
- scene.tif : Figure 1 in paper showing scene rendered using our
algorithms
- spheres.tif : Quality comparison of our rendering
algorithm to standard texture mapping. The
right sphere is rendered procedurally using our
method, while the left sphere is rendered using
texture mapping with a 128x128 irradiance map
computed in the conventional way. The image
shows the comparable quality of the two
renderings. The top and bottom spheres are
added to give an idea of the incident
illumination. The top sphere simply has the
(tone-mapped) environment projected on it, while
the bottom sphere is a mirror. The environment
is a light probe of the Grace Cathedral.
- Files pertaining to figure 3 comparing irradiance maps
- grace_standard.tif grace_ourmethod.tif
Comparison of irradiance maps computed the standard
way and using our method.
- grove_standard.tif grove_ourmethod.tif
Same comparison for Eucalyptus grove.
- The source environments and images are available from
Paul Debevec's website at http://www.debevec.org
Links are present off our website.
source/ : Source code
prefilter.c : Code to find spherical harmonic coefficients
envmaprender.in: Shader file for Stanford Real-Time
Programmable Shading System
To download the shading language system,
http://graphics.stanford.edu/projects/shading
grace_scene : Scene file for simplified Grace Cathedral
scene (used in figure 1 of paper).
Again, the paper website is http://graphics.stanford.edu/papers/envmap/