"Vibrant" might be the English word you're looking for...;^) The difference between lighting and no lighting is that you have more "coloring" to play with. If lighting is enabled, you can play with the materials and normals to give a certain effect, based on some sort of light source. Again, not knowing the data you have at each vertex besides position/dimension info (i.e. temperature, pressure, or whatever) it's hard to determine what would yield the best results or be the most intuitive for what you want to visualize. Perhaps using transparency (alpha in the color) to represent something along with the color for the function may improve things. Lastly, there are always shaders that you can resort to, to visualize your functions. With vertex and fragment shaders, your creativity is your only limitation.
Scientific visualization can be somewhat tenuous and it is really an art more than it is a science in giving an intuitive interpretation of the data at hand. I hope I haven't muddied the waters further for you. My apologies if I have... -Shayne -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Oren David Sent: Thursday, March 26, 2009 2:05 PM To: [email protected] Subject: Re: [osg-users] I need your opinion in 3d lighting techniques Well, basically we have an Mathlab solution that do all the math and generate many .STL files per function. I load the files with our custom .stl file reader into a scene, base on some math calculations I switch the onscreen object/node/.stl data with another object/node/.stl data. For now I'm using basic color per vertex to paint my function and the color change on the up/down axis. I find the result to be lame and I'd like to see the scene much more..... I dont know the word in english, to be more live or something like that. ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=9324#9324 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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