ectonaut Posted February 17, 2004 Share Posted February 17, 2004 Hi: Now that I have joyousy dicovered the art of photon maping in houdini (I'm refering to caustics), I have been yearnin to create a killer cornell box. I was looking at some amazing cornel boxes in the Discreet logic* Mental ray book. And one thing that I'm shamefully ignorant of is how to create volumetric lighting. Years ago this was a cinch when I was using truespace 3-D. My question is simple. 1. how is this effect achieved? Is it the spotlight, an atmosphere, a compositing trick? 2. Is it terribly computationaly expensive? 3. Should the spotlights be VEX or is it a fog thing if so what type of fog? 4. Is there any Ray Marching involved? 5. Is z depth something I should look into more if I plan to composite the object in shake or halo. I would like to create a lens with a beam shining through it and see the light focus in the midst is a foggy atmosphere with caustics, raytracing, soft shadows, radiosity and atmosphere. Pretty sexy exersize huh? thnkx guys, luis www.ectonaut.com Quote Link to comment Share on other sites More sharing options...
mark Posted February 17, 2004 Share Posted February 17, 2004 want to make it an odforce cornell-box challenge? Quote Link to comment Share on other sites More sharing options...
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