Pipes & Pressure

[josemendez]

I've not yet purchased this asset, but am working on a project involving pipe and wondered if this asset would suit. Are there any examples of it moving through hollow cylinders?

Also, while I can see from the demos that it is affected by gravity, to what extent are the effects of pressure modeled? If a pipe is filling up but gets capped, does it continue to fill up as if the cap were air-permeable?

Thanks!

Hi,

As with any realtime particle-based simulation, fluid is weakly compressible. This means that pressure is simulated and incompressibility enforced, but only up to a certain extent. Fluid can still be compressed under sufficiently high pressures, and guaranteeing a higher compressibility threshold requires more processing power. The simulation method used by Obi is position-based fluids (PBF), you can look it up if you want a more in-depth description of its capabilities. I reccomend to read up of the different methods of fluid simulation for your project, as there are a lot of them and most have very well defined strengths and weaknesses.

Fluid can collide with any geometry, including hollow cylinders.

kind regards,