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

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