(28-11-2018, 01:44 AM)gadgetkk Wrote: I have a similar question.

in my game i want to fill up a tank with liquid, but the particles are so small it requires a ton of particles to get any real volume. I played with the particle renderer radius scale and the emitter material fluid resolution. This allowed me to make the particles really big but then they stuck outside the walls.

So i am also curious to see if there is a sweet spot to increase the volume without increasing the number of particles (or am i doing it exactly how it is intended to be)?

(27-11-2018, 08:04 PM)Tuna.Y Wrote: Hi,

I am working on a project for a while and it's almost done. I was making test on my Samsung Galaxy Note 8 mobile phone and FPS was dropping a bit when I use 3500 particles in the scene. It wasn't a big deal until I tested on a slower phone...

I have tested the game on an HTC One M7. FPS was dropping around 0.5 when there are 3500 particles in the screen. Which makes game almost freeze and even closing the application is getting harder.

So, my question is: Is it possible to make particles bigger?

I'm using 1x scale 3500 particles now. Is it possible to make it 10x scale with 350 particles?

That's my only obstacle before releasing my game. I would be glad if we can figure it out.

(I'm using Simple2DFluid for better performance)

(28-11-2018, 08:13 AM)josemendez Wrote: Yep, simply decrease fluid resolution. This parameter controls how many particles are used per cubic (square in 2D) meter of volume:

http://obi.virtualmethodstudio.com/tutorials/emittermaterials.html

(28-11-2018, 08:36 AM)Tuna.Y Wrote: Thank you Jose. But I have already tried that. Circle colliders for water particles are not growing in the same ratio when I increase the resolution. Because of that, particles are getting into each other.

(28-11-2018, 09:41 AM)josemendez Wrote: If you set the renderer radius scale to 1, particles should not get into each other at all. By increasing resolution you make them smaller, not bigger by the way.

(29-11-2018, 11:23 AM)Tuna.Y Wrote: Hi Jose,

I have tried to decrease resolution step by step and set radius scale to 1 but it makes fluids look like little balls and these particles are going through 2d edge collider when they are pressed together.

Do you have any suggestion for that?

Quote:particles are going through 2d edge collider when they are pressed together.

(29-11-2018, 12:16 PM)josemendez Wrote: If the fluid looks too "bubbly" because its particle-based structure is made apparent, increase the solver's max anisotropy. This will allow particles to warp their shape to adapt to the fluid's surface. See:
http://obi.virtualmethodstudio.com/tutorials/obisolver.html


This is a common issue to all realtime physics, called "tunneling". Try decreasing the tilmestep or increasing the amount of collision constraint iterations in the solver.