Water waves and a ship

Andrey · Post by **Andrey** » Thu Aug 10, 2006 2:12 pm

Hi,
Does any-one knows, how can I do the waves on my sea interact with my ship?

Saku · Post by **Saku** » Thu Aug 10, 2006 2:27 pm

You could use a physics engine like Newton or TrueAxis to emulate stuff like that, or you could do something a little simpler with the build-in irr features.

Having thought about the same just a few days ago I figured I could "float" a simple box on top of the waves with the ITriangleSelector. When calculated the position and rotation of the box, simply apply it to the ship node - with a bit a "sink" to it tho, so the whole ship doesnt float ontop of the water

GL

Andrey · Post by **Andrey** » Thu Aug 10, 2006 6:07 pm

Thanks for good idea

But, if I want make something like wavebreaker (de=Wellenbrecher)..? Is it possible?
The waves must react to the ship by sea too...so it would be look more realistic....

crackingod · Post by **crackingod** » Thu Aug 10, 2006 6:15 pm

I think you would need to use a physics engine for that, or maybe code your own.
The capabilites of irrlicht are quite limited for that (and it's normal, it's a 3D engine

)

SiriusCG · Post by **SiriusCG** » Thu Aug 10, 2006 10:49 pm

But, if I want make something like wavebreaker (de=Wellenbrecher)..? Is it possible?
The waves must react to the ship by sea too...so it would be look more realistic....

You'd have to code it yourself, possibly using FFT functions and the wave effect would completely eat up your CPU/GPU... There wouldn't be any cycles left for your game logic...

Andrey · Post by **Andrey** » Thu Aug 10, 2006 11:15 pm

Thanks. Hmm...I think, in that case I must decline this idea...

gfxstyler · Post by **gfxstyler** » Fri Aug 11, 2006 12:08 am

you could "emulate" "wavebreakers" by adding particle systems to the ship and turn them off/on and fade them in/out.

JPulham · Post by **JPulham** » Fri Aug 11, 2006 8:43 am

thats what I'd do. Put a box emmiter accross the front of the ship at water level and if the boxes Y location go below the waters Y then turn on a spray at about 45 degrees away from the ship.