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cyroz2000
02-22-2003, 11:18 AM
Hello wavers,
Afriend of mine asked me if it was possible to do an underwater scene:
-the camera fly over the ocean, then dive into to reach the ground where a ship lays.
My probleme is that I can't figure how to make the transition between air and water, and my underwater environement is not very good.
So, thx in advance if you got any ideas or links to tutorials, it would be great.
See ya!

fletchman
02-22-2003, 03:52 PM
Hi Cyroz2000,



Try these:

http://www.3dluvr.com/content/article/107/2

http://www.cbode.de/misc/tutorials/caustics/caustics.htm

http://pro.wanadoo.fr/benjamin.chape/tuts2.htm

I did this in lightwave:

http://sv2.3dbuzz.com/vbforum/imgView.php?imgID=6892

Hope this helps

:airguitar

anieves
02-22-2003, 04:26 PM
those tutorials are good. after you finish setting up your complete scene just animate the camera. When the camera hit the water add some HV for bubbles and don't forget to add particles to show nutrients and debris in the water.

I have a scene with this almost exactly as you describe but I can not show it yet. sorry.:annoyed:

Arte
02-23-2003, 12:49 PM
Originally posted by cyroz2000
Hello wavers,
Afriend of mine asked me if it was possible to do an underwater scene:
-the camera fly over the ocean, then dive into to reach the ground where a ship lays.
My probleme is that I can't figure how to make the transition between air and water, and my underwater environement is not very good.
So, thx in advance if you got any ideas or links to tutorials, it would be great.
See ya!

I did the exact same shot in reverse a few years ago.

What I did was use a transparent bluish polygon in front of the camera to give the scene the underwater soft effect as well as give everything under the water the underwater texture with very low opacity. It makes the scene look very water like:) I am close to 100% that this is how Seaquest (Made with LW)was done too, as the results look exactly the same.

You can also use falloff for the lights to make the scene fade to black under the water in the distance. Distance dissolve works well too.

For the camera passing from water to air I used an object (could have been 3 objects) above the water shaped like a huge jittered bubble directly in the camera's Y path so the camera passes behind the bubble and refracts as though water were streaming over the camera lens. You can use hypervoxels for the bubbles but there is nothing wrong with polygons too.

Now, there is little reason to do all of the shot in LW. The camera passing from water to air is much easier to do in Aura if you have it. Aura's warp brush applied to multiple frames will warp the image as though passing through water. A much neater solution that renders almost realtime.

You can also do the same using a technique Larry mentioned with a polygon and using texture displace.

So the answer is yes, it's possible:)

X

cyroz2000
02-24-2003, 08:31 AM
Thx very much guys, it really helps...

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