[Updated] FFT noise module, VIDEO

Hi all,
currently I'm working on a new noise module for Hydrax, the FFT noise module, based on Jerry Tessendorf paper (http://www.finelightvisualtechnology.com/docs/coursenotes2004.pdf).

This approach is used in a lot of "new generation" waters, like Crysis, Unigine, and other 3D engines water.

The FFT noise development is about 25%, anyway I'll share with you the firsts results:

http://modclub.rigsofrods.com/xavi/FFTN ... s/FFT1.png
http://modclub.rigsofrods.com/xavi/FFTN ... s/FFT2.png

Xavi.

I cannot download the PDF - the server times out so I have a question here: what is the advantage of this technique?

More than advantages, it's just different.

It reproduces sea waves(not random heigths like perlin noise) in a specific direction(wind direction), so it's more realistics for some kind of scenes.

A don't know if you have hear about Unigine, but them have a island demo that uses FFT water and whit some postprocessing filtrers and good model it's really awesome. Here the link:
http://unigine.com/download/

I've planed, after realease the 0.5 version of Hydrax(That must fixes 'all' bugs, has 3 geometry modules and 2 noise modules) starting a little showcase demo like this unigine demo, including hdr, light scattering, PSSM, depth of field, etc... no to play(it's too fps heavy), just eye candy demo.

Well it is an attempt to fix the thing I noticed that is quite unrealistic in Hydrax. That the waves are only going up and down. To my eye it is definitely an improvement.

You've reason reptor, it's about time Hydrax has a good noise module, I'll record some videos of current results and post them in some hours, the achieve results at the moment are really great.

Xavi

Video: http://modclub.rigsofrods.com/xavi/FFTNoisePics/FFT.mp4

(All fft noise parameters are configurables)

Hope you like it.

P.D.: I'll post another video tomorrow

New one: http://modclub.rigsofrods.com/xavi/FFTNoisePics/FFT2.mp4

Thanks for the videos.

Yes, it is better now

New video:
http://modclub.rigsofrods.com/xavi/FFTNoisePics/FFTNewSamples.wmv

Suggestions?

Xavi

This looks really good!
Huge improvement in the realism of the movement of the ocean.

@Xavyiy : Did you check Cuda SDK FFT ocean demos/source ?

@tuan kuranes
Hi tuan, no, I haven't check it, I'm going to check it now. Thanks

Looks good. Its exactly what I need!!!

One thing: Would you be able to have large rolling waves? The scene i am trying to create is on a big ship out to sea with a large swell (Big waves!)

Gus
ps. Keep up the excellent work!

@al2950
The new FFT noise module apports a lot of realism to scenes like you are trying to obtain wich the Perlin noise can't apport. Big and choppy waves can be created for storm envinorenments and ocean scenes.

Xavi

wow, that looks so very good, i want to go swimming