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Vue F.A.Q (Last Updated: 2024 Nov 21 4:12 am)





 


Subject: Fake dispersion

rodluc2001 opened this issue on Apr 09, 2005 · 15 posts
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rodluc2001 ( ) posted Sat, 09 April 2005 at 2:51 AM · edited Fri, 22 November 2024 at 9:55 AM

file_216625.jpg

hi all, i'm interested on fake dispersion in material glass, i've tried some test, take me your idea and comments about it. first image without dispersion, standard glass

rodluc2001 ( ) posted Sat, 09 April 2005 at 2:52 AM

file_216626.jpg

2nd first attempt

rodluc2001 ( ) posted Sat, 09 April 2005 at 2:52 AM

file_216628.jpg

3rd less dispersion ...

rodluc2001 ( ) posted Sat, 09 April 2005 at 2:53 AM

file_216629.jpg

4th with another objects

rodluc2001 ( ) posted Sat, 09 April 2005 at 2:53 AM

tell me your opinion, i would make a tutorial, if needed... Rodluc.

imagist ( ) posted Sat, 09 April 2005 at 3:05 AM

It makes a stunning affect and am very interested in a tutorial

Pollee ( ) posted Sat, 09 April 2005 at 3:33 AM

if that is a diamond it would not show the yellow in the ring as much as the picture does.

rodluc2001 ( ) posted Sat, 09 April 2005 at 3:40 AM

Pollee i dont remember the IOR of glass i've used, but my test is about the dispersion of light in glass... in few words simulate the rainbow color when light pass in a glass objects... about the diamond i agree with you, with the correct IOR gold dont appear... but this is another story :D

Pollee ( ) posted Sat, 09 April 2005 at 4:05 AM

ok, I'm not too sure what you are after but to me the shadows are unreal in the way the light is passing through. IMO the 1st picture feels the best. I feel the elephant in the 2nd & 3rd pic would be more lit if the shadow was that bright. The shadow of the elephant's ear is disturbing in the 2nd & 3rd pic. The ring's shadow doesn't feel right but I don't exactly know why. All in all it is interesting work and fascinating to think about.

blaufeld ( ) posted Sat, 09 April 2005 at 5:04 AM

Interesting - go on!!!! BTW Anyone knows how to fake sub-surface scattering in V5 Esprit?

rodluc2001 ( ) posted Sat, 09 April 2005 at 6:11 AM

please an example... what is a "fake sub-surface scattering in V5 Esprit"

Dale B ( ) posted Sat, 09 April 2005 at 6:37 AM

Subsurface scatter is the effect of light penetrating a translucent material and being reflected back, both picking up new color from the material, and affecting the appearance of the material, giving it a subtle 'glow' Human skin is probably the handiest example; the 'glow of health' you get in strong light.

blaufeld ( ) posted Sat, 09 April 2005 at 6:53 AM

Yep! :)

Pollee ( ) posted Sun, 10 April 2005 at 2:07 AM

I understand what you are after now. Thank you Dale. Excuse my ignorance. The color in the glass is interesting and beautiful.

bruno021 ( ) posted Mon, 18 April 2005 at 10:42 AM

About the SSS: I'm sure the answer to this lies in the function editor, but I'm afraid I won't be the one to find out. The editor is way too complicated for me right now, but I'm learning!


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