Re: Re: Visualization site updates
- To: mathgroup at smc.vnet.net
- Subject: [mg61002] Re: [mg60979] Re: Visualization site updates
- From: Chris Chiasson <chris.chiasson at gmail.com>
- Date: Fri, 7 Oct 2005 03:37:46 -0400 (EDT)
- References: <dht4fq$hng$1@smc.vnet.net> <200510060808.EAA08497@smc.vnet.net>
- Reply-to: Chris Chiasson <chris.chiasson at gmail.com>
- Sender: owner-wri-mathgroup at wolfram.com
What I want to know is: (When) Are we going to get OpenGL rendering and/or SVG with embedded fonts and embedded MathML export? :] On 10/6/05, Martin Kraus <martin_kraus_germany at yahoo.com> wrote: > Jeff, > > I definitely agree that the resolution of most of the excellent > visualizations on your site is too fine for LiveGraphics3D, > i.e., there are too many primitives for interactive rendering > with LiveGraphics3D. Rendering at a lower resolution is > therefore often unavoidable, and I'm usually much more > aggressive in this respect when adapting > Mathematica graphics for LiveGraphics3D in order to ensure > interactive rendering also on less powerful machines. > Without the possibility to render graphics interactively, it is usually > preferable to offer a static picture for a well chosen view point > and/or a precomputed animation for a rotating object (as you > did for the earthquake example). > > The 3d surface offers an example for which the interactive version > doesn't offer a lot of benefits: there are too many polygons for > interactive rendering with LiveGraphics3D and the geometry of the > surface (a height field) appears to be simple enough to be understood > with a 2d image (apart from some hidden parts). > > I think the ability to interactively rotate and zoom objects is > particularly useful to examine the earthquake and molecule > examples because the 3d point positions cannot be understood > from a 2d image. In these cases the stereo viewing (press "s" to > toggle the applet between single view, stereo view for > divergent fusing and stereo view for cross fusing) is also useful. > > In order to separate points of the same color (in particular for > molecules) you could try the applet parameter > <PARAM NAME="POINT_EDGE_COLOR" VALUE=#000000> > to render each point with a thin black edge. > > Without further coarsening, any of the animations would not render > interactively with LiveGraphics3D. However, using LiveGraphics3D > to view animations offers the benefit of more control over choosing > the time step (ALT/META/COMMAND + left button or right button > and dragging horizontally). > > BTW a great site for visualization with Mathematica! > > > Martin Kraus > > > Jeff Bryant ha escrito: > > > I've begun adding some new functionality to my visualization site. A > > few people have requested the ability to be able to interact with the 3D > > graphics in real-time. I decided to try using LiveGraphics3D by Martin > > Krauss on several of my examples. Some of the examples are not > > appropriate for real-time interaction as the render time was too long. > > I picked a few of my 3D visualizations that were more reasonable. For > > those examples that are interactive, they are often rendered at lower > > resolutions to keep loading time down. I'd would be interested in > > hearing your thoughts on whether this is useful where appropriate. Here > > are the examples I currently have: > > > > http://members.wri.com/jeffb/visualization/3dsurf-interact.shtml > > http://members.wri.com/jeffb/visualization/potentials-interact.shtml > > http://members.wri.com/jeffb/visualization/galaxies-interact.shtml > > http://members.wri.com/jeffb/visualization/quake3d-interact.shtml > > http://members.wri.com/jeffb/visualization/algebraic-interact.shtml > > http://members.wri.com/jeffb/visualization/prehistoric-interact.shtml > > > > I have also added a new visualization (non-interactive) that uses > > Mathematica to visualize molecular structures in the protein data bank > > format. This particular animation shows an insulin molecule with 14,940 > > atoms in it. To keep the render time down, I used 3D points instead of > > spheres which unfortunately means no lighting effects: > > http://members.wri.com/jeffb/visualization/molecule.shtml > > > > -Jeff > > -- Chris Chiasson http://chrischiasson.com/contact/chris_chiasson
- References:
- Re: Visualization site updates
- From: "Martin Kraus" <martin_kraus_germany@yahoo.com>
- Re: Visualization site updates