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working on something...
what do you think?
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working on something...
what do you think?Marc Lorenz
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www.marclorenz.com
www.facebook.com/marclorenzvisualization -
one thing pops into mind.... where can i get it
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Looks really nice. Did it take 12min for the actual attached image or is this a resize.?
zoranComment
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have to further test it. i'm trying to compare it to real prism photos, not sure if the spectrum distribution is correct.
yeah, the render time is right for that image. that's with full brute force GI though, and everything "on". caustics are heavy. they are either sharp/noisy or blurred altogether, i don't think i can get them smooth+sharp, as with GI (irradiance map).Marc Lorenz
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looks really interesting
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It is based on the technique of having three different materials with different IOR for rgb? Looks nice in many situations, but in others, like the left part of the image, it gets a little too obvious that there are only three different IORs.
But nice to get a material that does the job of creating the sub-materials for you.Comment
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Indeed, it looks like a material encapsulation based on the technique Vlado explained a long while back for three colors.
Unfortunately i had one such tester ready a while back, but
A) I couldn't implement the full spectrum (well, 7 colors) due to my own ineptitude, and
B) scripted materials didn't work inside a VRay Blend, making them very nice a concept, but also very limited in that it wasn't possible to expand on the set of functions.
Could you manage to get around both issues, i'd be overly thankful for the addition!Lele
Trouble Stirrer in RnD @ Chaos
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emanuele.lecchi@chaos.com
Disclaimer:
The views and opinions expressed here are my own and do not represent those of Chaos Group, unless otherwise stated.Comment
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you're right...a scripted material won't work in a blend material...bummer...Originally posted by ^Lele^ View Post
didn't know that...but it's not crucial, for a gemstone material.
i use 3 color filters. i also tried full spectrum with 7 colors, but it gives me the same result, with longer render time.
i'm not aiming for full tweakability, but for a quick and useable gemstone material.
(still cooking with water of course...blend material)
the spectrum is quite good IMO...could use some jitter in the IOR shift maybe:
^-rendered with 3 filters (rgb), linear IOR shift, slight glossy refraction
^- photo reference,
from this site: http://people.rit.edu/andpph/exhibit-spectrum.htmlMarc Lorenz
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i have this little scene i keep going back to since that dispersion vray material post...
i find it quite entertainment to play around with it..
these are some low quality raw renders:
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This is really good. And yes, it would be very useful, so you don't have to do the material blending yourself.www.hrvojedesign.comComment
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this will be the last teasing pic, i promise
i'll try to get the script finished tomorrow...Marc Lorenz
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Looking very good
How about a teasing pic with some volumetric caustics? 
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