POV-Ray : Newsgroups : povray.binaries.animations : Re: LSSM Example-Files (WIP, MPG1, 474kb + 480kb) : Re: LSSM Example-Files (WIP, MPG1, 474kb + 480kb) Server Time
19 Jul 2024 05:38:55 EDT (-0400)
  Re: LSSM Example-Files (WIP, MPG1, 474kb + 480kb)  
From: Tim Nikias v2 0
Date: 13 Jun 2003 10:04:14
Message: <3ee9d9de@news.povray.org>
As for the still image:
Possible indeed. Set the animation-timeframe of the
plane before 0 (like -1 to 0), and set the simulation-timeframe
appropriately (like from -1 to .1, to make sure the last frame
is caught). You've got to wait a little then, but that works
fine.

As for the object-floating:
I've given some thought to this as well. Best would probably
be a two-pass method: render the animation and use trace
to determine where the object should be sitting. Then do
another pass with the object animated based on first pass.
Another try might be to have the object "lag" by one frame.
When using a high enough resolution for the water, it won't
even be that visible. You'd then have to keep track of the
new position, put that in proper file for the system to backtrace
the animation of the object (which is needed for the waves to
be generated).
Problem with this is that the water actually checks for insidedness
of the calm nodes, not the displaced ones. Perhaps I'll change that.

Anyways, if anyone can come up with a method without intervening
with the standing structure, he/she is invited to give it a shot. Haven't
got the time right now, but I want to cover that issue at some point
as well.

-- 
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights
Email: Tim### [at] gmxde

> The talk of seaplanes reminds me of the post "water skiing" in
> povray.binaries.images. For images such as this one, it might be useful to
> calculate what the water would look like if the plane was moving across
the
> surface, but only render one image. Can your system calculate multiple
> frames of water calculations in one pov-ray frame to allow this sort of
> still image creation? If it isn't too much hassle to implement it might be
> quite useful.
>
> Another thing that occurred to me from the suggestion of objects falling
> into a pool: how easy would it be to make a 'floating' macro where objects
> float on the water and bob about in the waves? The trace function would
> probably come in handy here, but I can see potential problems with waves
> bouncing off these objects rather then moving them. Any thoughts?
>
>


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