leee schreef op 11-3-2015 om 20:20:
On Wednesday 11 March 2015 09:54:39 Jason Saunders wrote:
Morning everyone,
Just thought I would ask if anyone has ever managed to create convincing
looking animated ocean waves in Realsoft before please?
I have successfully created still images of good looking sea using
combinations of wave and wrinkle shaders, but actually achieving the
motion of ocean waves in a convincing way such as this animation clip
seems pretty tricky.
https://www.youtube.com/watch?v=sQ11hadNgUk
Am guessing applying a sin operator or similar with the wave shader to
achieve the random wave motion is possibly the way to go, but would be
grateful for any advice if anyone has tackled this problem before please.
Many thanks,
Jason
I think I once did something similar, but on a smaller scale, using a
combination of random and noise shaders.
IIRC, the random shader was static/constant and used to produce the basic
form, with the noise shader being animated, via changing the seed, I think,
to slightly modify the random shader's basic form over time. The material
was then applied as a parallel map which was shifted over time in the
direction I wanted the 'waves' to move.
A final tweak I now add to most ground bump maps that recede to a distant
horizon is to link the bump amplitude to the camera distance so that the
bumps reduce in height with distance from the camera - this can drastically
reduce the aliasing artifacts I was otherwise getting in the far
distance/on the horizon.
LeeE
Clever trick!
It would probably take a lot of time to tweak the bumps into convincing
waves... and render it. As far as I know there are no renderfarms for RS.
Honestly, I would consider using other software for the ocean and post
process it with the RS rendered stuff, unless you need realistic
reflections and refractions of your RS scene in the water. For example
Blender has a great Ocean modifier, plenty of tuts and examples on youtube.
And beware of render artifacts when using displacement, sometimes black
edges appear!
Good luck and please post some WIPs!
-Mark H
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