[j_petrucci]

Hi,
I'm working on some MXI lightning images, but I have a pretty slow computer (Pentium-III 800Mhz) and I can't render at levels that make caustics clearer, so I'm asking if light coming from MXI can produce caustics like any other emitter...

and the other thing: is Maxwell capable of correctly reproduce Fresnel effect, i.e. incident-angle dependant reflection?



and thanks NL for one of the greatest gift ever made to the CG community!

[Hervé]

good fresnel for Dielectrics... and little less for plastics... but it's in there already....

although it would benice to have a way of controlling it... with a gradient for instance...


Caustics from hdr_MXI emitters are not so strong... but it's there.......

[j_petrucci]

good fresnel for Dielectrics... and little less for plastics... but it's in there already....

how can it be obtained?

[Hervé]

You cannot switchit on or off the fresnel... it is "coded" into Maxwell...