Forum: Carrara


Subject: Doctors and ashtrays.

MarkBremmer opened this issue on Dec 08, 2000 ยท 7 posts


MarkBremmer posted Fri, 08 December 2000 at 12:27 AM

Just playing with lights. Saw the "A Study in Scotch" in the C gallery and thought I'd mess around with caustic refractions too. (BTW, nice work 5055357) I think I need more time to play with this stuff..... All textures are stock from the Carrara CD as is the stethescope. The ashtray is a stock metaball object from the object tray that was converted to a vertex object and tweaked a little.






graylensman posted Fri, 08 December 2000 at 7:35 AM

Intruiginng image. Not being a Carrara user (Ray Dream Studio 5, that's me), I don't know what caustic refractions are. Enlighten me?


MarkBremmer posted Fri, 08 December 2000 at 11:56 AM

Caustics refers to the light bending lens quality of glass and liquids. Carrara does not support that at this time. The work around for that is to create some gels and apply them to lights in appropriate places as in the example above. If I had any spare time today I'd tweak the gel that's inside the glass for a better rim refraction but I've gotta pay the bills. :*0 Other uses would be underwater scenes, and any scene where there is glass type of objects. Some of the pixel pushers with programs that have caustics still create gel/light set-ups to avoid speed hits in rendering plus complete control over the caustics themselves. (there are times that you may not want them everywhere) Pretty fun stuff. Mark






graylensman posted Fri, 08 December 2000 at 12:59 PM

Ah. I knew there was a reason I opted for a more "cartoon" approach in my work. ;)


jrsamples posted Mon, 11 December 2000 at 8:31 PM

Did I miss something? Is there a good tutorial for this?


MarkBremmer posted Tue, 12 December 2000 at 5:01 AM

Hi jrsamples, What do you want to know that is not shown in the image above? I'll try to fill in the blanks. Mark






3ddave44 posted Thu, 14 December 2000 at 3:26 PM

cool technique Mark. Im gonna play with that. - Dave www.citizendave.com