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Old 08-06-2009, 11:38 PM   #1
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can Maya produce a descent ocean surface?

i am trying to simulate a sea surface by using an ocean texture displacement and a mi_material applied to a plane.
to add the dine detail in weaves i added a fractal bump texture.Now it looks ok but it could me more accurate.
Duncan suggested to use the same ocean texture use for siplacement also for bump. He suggested to increase "num frequencie" and tune the "small wave lenght" height and peak to replace the nice fractal effect. I tried doing this without convincing results:

any ideas on how i can add an accurate ocean texture to bump to make it more accurate?

scene

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Last edited by royterrrr : 08-06-2009 at 11:49 PM.
 
Old 11-27-2009, 08:00 AM   #2
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hi, thank you for your scene, i downloaded your scene anh try to render, but it takes so long time to render, 10 times longer than i use the default ocean shader.
 
Old 11-27-2009, 08:04 AM   #3
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aaaaaaaaa

hi, thank you for your scene, i downloaded your scene anh try to render, but it takes so long time to render, 10 times longer than i use the default ocean shader.
 
Old 11-27-2009, 05:59 PM   #4
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you will have to tune the displacement
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Old 11-27-2009, 08:54 PM   #5
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I've made decent oceans before using the oceanshader and fractals, simply mixing the outputs with another node or nodes before piping into the mia_material. I'll give your scene a shot and see if I can come up with anything helpful.
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Old 11-28-2009, 05:33 AM   #6
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Quote:
Originally Posted by royterr
Duncan suggested to use the same ocean texture use for siplacement also for bump. He suggested to increase "num frequencie" and tune the "small wave lenght" height and peak to replace the nice fractal effect. I tried doing this without convincing results

How do I reeeeeach these keeeeds??

This is what it looks like when you do what Duncan says, plus a dash of rocket sauce:

Scale is very, very, very important with the ocean shader. It's also important that your smaller waves are not too smooth or small (in height) when they're in the correct scale if you want this look.

Quote:
Originally Posted by gianghung79
it takes so long time to render, 10 times longer than i use the default ocean shader.

As for that mystery, I think it's because Royterr had the numWaves parameter set to 50.

10-16 is usually the range happy oceans live in. At least it was when Bob Ross was painting oceans.
-shawn
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Last edited by YourDaftPunk : 11-28-2009 at 05:58 AM.
 
Old 11-28-2009, 06:57 AM   #7
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I think the rendertimes and calc times were more related to the "Smooth" interpolations in Roy's setup, after playing with his scene a bit. Obviously your setup looks just fine, though! I would have tried Smooth or Spline too, but now it makes a bit more sense...

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Old 11-28-2009, 06:59 AM   #8
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Old 11-28-2009, 01:08 PM   #9
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This is my little tips for use mia_material and render ocean
It's only with bumo, but the same use with displacement.
http://www.megaupload.com/?d=8LAFWOPT

on youtube: http://www.youtube.com/watch?v=YgxI4FFBAV4

is without audio, for no problem with my brrrrrrrrrrrrr............. english.
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Last edited by ytsejam1976 : 11-28-2009 at 02:05 PM.
 
Old 11-28-2009, 02:45 PM   #10
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yes i'm see the strange error. I'm reupload it on rapidshare. Stay tuned
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Old 11-28-2009, 02:47 PM   #11
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Quote:
Originally Posted by ytsejam1976
This is my little tips for use mia_material and render ocean
It's only with bumo, but the same use with displacement.
http://www.megaupload.com/?d=8LAFWOPT

on youtube: http://www.youtube.com/watch?v=YgxI4FFBAV4

is without audio, for no problem with my brrrrrrrrrrrrr............. english.


I cant download the file on megaupload. It says that the file "is not accessible" - somebody gets the same error message? Unfortunately the video you uploaded on youtube is at a very low quality :(
 
Old 11-28-2009, 02:49 PM   #12
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Now my video after the youtube conversion operation, i'm see good, not low as after my upload it.
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Old 11-28-2009, 03:14 PM   #13
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Yes indeed, it looks great now! Thank you for creating this tutorial, it was very interesting to watch! Whats odd is that it stops so suddenly. You were tweaking the foam and then it was cut off. I wonder why you did not show the final result with the foam.
 
Old 11-28-2009, 03:14 PM   #14
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Thank you and sorry but i'm translate your answer soon (for my problem with english ) My foam appears well.

http://mayadvance.blogspot.com/
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Old 11-28-2009, 03:26 PM   #15
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http://rapidshare.com/files/3134335...usible.rar.html

here rapidshare link. I hope never problem appear to download it.



P.S. i'm remember you that on my youtube channel the video is ini two parts
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