clarke@csri.toronto.edu (Jim Clarke) (12/19/88)
GRAPHICS SEMINAR - Tuesday, December 20, 3:00 p.m. in Room GB 221
(GB = Galbraith Building, 35 St. George St.)
Turner Whitted
Department of Computer Science
The University of North Carolina at Chapel Hill
"Accelerated Volume Rendering"
Volume rendering is the display of data sampled in three dimensions. Usu-
ally, visualization of such data has been through conventional computer
graphics line or surface drawing methods preceded by processes that coerce
the sampled data into a form suitable for display. This approach is being
replaced by new techniques which operate directly on the three dimensional
samples to avoid the artifacts introduced by the use of conventional graph-
ics primitives.
This talk describes one such technique designed for interactive use. The
method is a concatenation of mappings from sample location and value to im-
age location and intensity. The renderer achieves interactive speed by
running in a general purpose graphics accelerator, by avoiding any complex
classification procedures, and by using look-up tables for most mappings.
Because the renderer is interactive, users are able to specify application
specific mapping functions on-the-fly. Current applications include molec-
ular modeling, geology, and astronomy.
--
Jim Clarke -- Dept. of Computer Science, Univ. of Toronto, Canada M5S 1A4
(416) 978-4058
BITNET,CSNET: clarke@csri.toronto.edu CDNNET: clarke@csri.toronto.cdn
UUCP: {allegra,cornell,decvax,linus,utzoo}!utcsri!clarkebdb@becker.UUCP (Bruce Becker) (12/22/88)
In article <8812191755.AA08452@harbord.csri.toronto.edu> clarke@csri.toronto.edu (Jim Clarke) writes: > GRAPHICS SEMINAR - Tuesday, December 20, 3:00 p.m. in Room GB 221 > (GB = Galbraith Building, 35 St. George St.) > > Turner Whitted > Department of Computer Science > The University of North Carolina at Chapel Hill > > "Accelerated Volume Rendering" > >[ interesting description of interesting talk deleted ] The above was posted Monday December 19. It is now Wednesday December 21, when I received it. I am very sorry to have missed this talk by Whitted, who does outstanding work in the computer graphics field. Please, next time, post *at least* a week in advance, if not more! Cheers, -- _ _/\ Bruce Becker Toronto, Ont. \`o O| Internet: bdb@becker.UUCP, bruce@gpu.utcs.toronto.edu \(")/ BitNet: BECKER@HUMBER.BITNET ---mm-U-mm--- "The OSF is suffering from Penix envy" - Rocky Raccoon
elf@dgp.toronto.edu (Eugene Fiume) (12/22/88)
In article <179@becker.UUCP> bdb@becker.UUCP (Bruce Becker) writes: >In article <8812191755.AA08452@harbord.csri.toronto.edu> clarke@csri.toronto.edu (Jim Clarke) writes: > [ ... followed by a legitimate complaint about lack of lead time.] The blame does not rest with Jim Clarke. Although there were some mitigating circumstances, the graphics group didn't promptly send out word of Turner Whitted's talk (and then we had to change the time). Our apologies. Stay tuned for more interesting talks in the new year. -- Eugene Fiume Dynamic Graphics Project University of Toronto elf@dgp.toronto.edu