#Underwater scenes…
02-Mar-94 00:42:45
Sb: #38715-#Underwater scenes…
Fm: John Gross 71740,2357
To: Anthony Ramirez 70275,1027
Whenever we need to have nice water refractions on an object close to the
surface, we actually ray trace a light through a surface object that can
use the underwater surface in transparency, or better yet, an image
sequence of a moving grayscale pattern that creates a changing
transparency to the surface. When the ray tracer is cast through, the
shadows fall on the surface.
If using the underwater texture on your object, try making the Texture
Size equal to your object size and play with the wavelength values from
there. Also use falloff to get the texture to appear on the upper part of
your object only.
JG