If you haven't tried Animal Well, give it a shot. The whole game and its custom engine are like 35MB and it's filled with really cool visuals and physics powered by fluid equations.
replyThis is great! When I have some leftover time I want to try copying this implementation for 3D. I reckon I could get away with minimal modifications to support the third axis...I think...
replyThat'll perform even worse though, hopefully my CPU can handle it or I'm gonna need a lot of leftover time to make a shader
The unlinked Jos Stam paper is available from his website https://www.dgp.toronto.edu/public_user/stam/reality/Researc...
replySo once upon a time I stumbled upon simulating fluids in gamedev and I really wanted to learn how it works. Fast forward 2 months and I decided to write down everything I learned to hopefully make it easier for others in the future!
replyFluid sims are just so darn fun! Nice writeup, very accessible.
replyCouple of notes, I think you forgot to apply timestep when adding rocket exhaust velocity, pretty sure it should be
u[idx] += backward.x * flame_velocity_amount * falloff * delta
v[idx] += backward.y * flame_velocity_amount * falloff * delta
Yeah it seems I missed that, adding the rocket at the end was a cherry on the top and I was so exhausted already I'm surprised it even works lol
replyIt made it very fun to play with though :D
replyGreat job. I have spent a lot of time working on fluid simulations (I still am). Glad to see more people still mesmerized. If you’re interested, this rabbit hole goes very deep.
replyexcellent article, great vulgarisation and human written !
replyThank you
For anyone wanting to dive further, Fluid Simulation for Computer Graphics by Robert Bridson is the definitive textbook.
replyDid they test if it satisfies the relevant conservation laws?
replyIt won’t satisfy those laws. It’s also not a goal though of this post.
replyI mean if you're writing a ray tracer and the reflected light has more intensity than the light sources, then that's not desired. You can have the same sort of thing going on with a fluid simulation.
replyThis is really cool. I love how much detail you went into explaining the setup and walking through each piece of the simulation. Definitely bookmarking this to play around with later!
replyOh don't let us pinch zoom. That would be a disaster.
replyAssuming you mean the site - pinch zoom & pan works for me on Windows and iOS?
replywell android chrome doesn't
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