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[josemendez]

Hi,

Depends on how many pipes you have, how much fluid you want in them, and how detailed you need the flow to be. Obi is a particle-based simulation, stands to reason that in order to simulate an ocean or even a lake you need hundreds of millions of particles which isn't going to run in realtime in any existing hardware (unless you use particles the size of a car, in which case the fluid will look chunky).

Is there any way to control water collision with other object by code.

Yes, you can:
- Filter out which fluids should collide with which objects, using collision filtering. This can be set up in-editor or programmatically:
http://obi.virtualmethodstudio.com/manua...sions.html

- How fluids should react to a collision with an object (slide, stick, etc), using collision materials. Again, can set them up in editor or in code:
http://obi.virtualmethodstudio.com/manua...rials.html

- Get a list of all contacts that happened in a frame, and react to them:
http://obi.virtualmethodstudio.com/manua...sions.html