Ocean - Boat wake - Splashes

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

THREAD CLOSED
 
Thread Tools Search this Thread Display Modes
Old 07 July 2011   #1
Ocean - Boat wake - Splashes

Hi guys,

I am working on a shot where stormy ocean needs to be generated.
Wakes and foam particles needs to be created by the boat interaction.
Foam texture and foam particles needs to be generated based on the height of the crest wave.

I started with Houdini ocean tool kit.

Right Now i am working on creating the ocean surface :
I am planning to generate the ocean surface in houdini ,export it to maya for Lighting rendering.
What is the best way to export Deformed Houdini Surface to maya.

Size of the grid is 1000X1000X1000

I tried with FBX but system got freezed.

prakash.k
 
Old 07 July 2011   #2
That is a huge grid > if your using a high detail settings. If I need to make an ocean using HOT I make one small grid where my ship is. Then take those settings and roll them into a displacement shader using HOT_Ocean_Eval vop

All of this really does depend on the type of shot you have to do.

b
 
Old 07 July 2011   #3
There is a good walk through this exact process (without the Maya export part) on ****** in the HIP tricks series.

Alex
 
Old 07 July 2011   #4
hi
@Bob,
Thank you for the tips.
I will try out your method..

@rurik
Thanks.
Is the lighting and rendering part is also discussed in that Hip Tricks.
As i would be exporting to maya only for lighting and rendering..


prakash.k
 
Old 07 July 2011   #5
For lighting and rendering check out the HOT tutorials on Digital Tutors. The ****** one does not talk about that at all.
 
Old 07 July 2011   #6
The best way is to do the entire effect in Houdini hands down it will be easier. Use point clouds for everything ie get average normal positions.

You can use point clouds to generate your wake and also generate custom velocity vectors to drive the bow wave and other particles effects.

If you take this question over to the sidefx site I sure some poeple would post up some helpful scene files.
 
Old 07 July 2011   #7
thanks bob..

i will post it in side effects forum..

prakash.k
 
Old 07 July 2011   #8
hello mr bob..

Right now the simulation is looking good but due to the large scale of the scene i cant scale the grid.

I need to create a grid with displacement shader as you mentioned.

Can you help me how can we transfer the HOT values to a displacement shader.

what will be the workflow for blending both the simulted grid and displaced grid.

prakash.k
 
Old 07 July 2011   #9
Are you using the Ocean SOP? You should just lay your grid, create a VOP SOP and use the Ocean displacement VOP (don't have the exact name in mind now). Much more control in there
 
Old 07 July 2011   #10
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
__________________
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
 
Thread Closed share thread



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright 2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 10:37 PM.


Powered by vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.