YON's Volume Rendering Page

This is an RGBA volume data set downsampled from the Visible Woman

CT Body rendered as a Very Large Image 5440x3k

Cool Embedded Geometry shots

Volume Rendering for 3D GEEKs

VolumePro Product page at TeraRecon (gen3 is still made, but not marketed externally)

H. Pfister, J. Hardenbergh, J. Knittel, H. Lauer, and L. Seiler. The volumepro real-time ray-casting system. In Proceedings of SIGGRAPH 99, pages 251--260, August 1999. MERL TechReport and SIGGRAPH99 Paper DOI=http://doi.acm.org/10.1145/311535.311563

The VolumePro 1000 was described in a paper at I3D by Yin Wu, Hugh Lauer, et al.
Wu, Y., Bhatia, V., Lauer, H., and Seiler, L. 2003. Shear-image order ray casting volume rendering. In Proceedings of the 2003 Symposium on interactive 3D Graphics (Monterey, California, April 27 - 30, 2003). SI3D '03. ACM Press, New York, NY, 152-162. DOI=http://doi.acm.org/10.1145/641480.641510

Emissive Clip Planes for Volume Rendering http://doi.acm.org/10.1145/965400.965502	Cutting thru homogeneous material gives crazy small gradients to confuse viewer.	Placing an emissive cutplane over the noise allows lighting the true surfaces.
SIGGRAPH 2004 Poster	Cap: may14a.jpg	fMRI Visualization
Integrated 3D Visualization of fMRI and DTI Tractography http://doi.ieeecomputersociety.org/10.1109/VIS.2005.58	Good overview shot
Two images, one totally emissive, one lit. Our brain is wired for "shape from shading"	Geophysical data is volume data.

Notes

Front to Back blending is possible with a buffer to accumulate alpha. The normal back to front blending:

ColorAccum   = (1 - OpacityNew)*ColorAccum + ColorNew
OpacityAccum = (1 - OpacityNew)*OpacityAccum + OpacityNew

Front to Back

ColorAccum   = (1 - OpacityAccum)*ColorNew + ColorAccum
OpacityAccum = (1 - OpacityAccum)*OpacityNew + OpacityAccum

from:
A coherent projection approach for direct volume rendering.
Jane Wilhelms (R.I.P. 2005), Allen Van Gelder: SIGGRAPH 1991: 275-284

Whiz kids wanted. What are there so few Pythagorean solids? If you understand the question, let me know.

See ALSO: dtifmri.htm <> emissive.htm <> fmriviz.htm <> fmrivizo.htm <> hips2.htm <> images.htm <> poster02.htm