Volume rendering of any reasonably finely sampled grid - whether topologically tetrahedral or cubic, on regular, partially regular or fully irregular vertices is supported using the built-in "software" renderer. Like all rendering algorithms, it makes assumptions about the data to simplify and speed the rendering process. Gouraud shading, for example, implies linear interpolation in color space, which makes little perceptual sense; interpolated normal and reflection vectors for Phong implies a surface shape that's not implicit in the data. If you'd like to build a volume renderer implementing another algorithm that makes different assumptions to support extremely coarse grids and is therefore more suitable to your case, please do.
Greg Gib Bogle <[EMAIL PROTECTED]>@opendx.watson.ibm.com on 08/12/2001 08:52:17 PM Please respond to [email protected] Sent by: [EMAIL PROTECTED] To: "'[email protected]'" <[email protected]> cc: Subject: RE: [opendx-users] Funny tetrahedron visualisation - Volume Vis Does this mean that there is no robust volume rendering option, on any platform? Gib > -----Original Message----- > From: Gregory D Abram [mailto:[EMAIL PROTECTED] > Sent: Saturday, 11 August 2001 00:36 > To: [email protected] > Subject: RE: [opendx-users] Funny tetrahedron visualisation - > Volume Vis > > > > Hardware rendering doesn't do volume visualization, it is essentially > ShowBoundary followed by Image. > > Greg > NOTICE - This e-mail is only intended to be read by the named recipient. It may contain information which is confidential, proprietary or the subject of legal privilege. If you are not the intended recipient please notify the sender immediately and delete this e-mail. You may not use any information contained in it. Legal privilege is not waived because you have read this e-mail. For further information on the Beca Group of Companies, visit our web page http://www.beca.co.nz
