Fluid Simulation in a Cornell Box

This is a test scene from an undergraduate computer graphics course's final project. The simulation and surfacing are achieved in 3 weeks.

Fluid simulation using C++ and G3D engine. Simulation is based on smoothed particle hydrodynamics and the fluid surface is generated using the marching cubes algorithm with more than 700,000 cubes. We used our own photon mapping and ray tracing program to do the global illumination and rendering.

Category:

Science & Technology

Tags:

• smoothed
• particle
• hydrodynamics
• SPH
• fluid
• simulation
• cornell
• box
• computer
• graphics
• g3d
• engine
• ray
• tracing
• photon
• mapping
• refraction
• caustics

[cyther39]

no caustic effect.

[coffeeolay]

@cyther39 Ah that's a flaw in the rendering stage. Photon mapping tends to blur local intensities, thus hard to create high frequency caustics. Didn't know there were 'caustic photons' back then :)

[LauxHawk]

Wow that's impressive. Is that rendered in real time? Or is that pre rendered?

[coffeeolay]

@LauxHawk Thanks! It's offline rendered otherwise it would be a SIGGRAPH paper :)

[lifeandwater]

Woah. Nice. It took 3 weeks for it to compute the final result?

[coffeeolay]

@lifeandwater

it took three weeks to build the infrastructure. did not take that long to compute the final results since it was distributed across quite a few machines.

[LaughingPsycho]

Very well done there.

[YoungFluidSimulator]

@coffeeolay That is amazing!

Did you publish the paper about this work? I'm interested because my undergraduate task is, briefly, fluid simulation with simple illumination & real-time rendering.

[BLANKNOTING]

@acgfx "HoloToy's" Is "Cornell Box" More!! "Geometric Shape 3D"

[BLANKNOTING]

@kode80apps "Cornell Box" More!!! "Geometric Shape 3D "

[Draketuroth]

Dude, you are amazing. Excellent work :D

[kiyotewolf]

Oh great now I have to go to the bathroom.

:M

[Mallaien]

What software are you using? I have been playing around with Realflow 5 and just doing the particle solve with 150,000 particles took me about 15 minutes. im sure if I build it into a mesh and rendered it in Maya it would add about 5 more hours for my 300 frame animation.

Realflow 5 is great compared to there older version that uses a slower solver, this new one reduces the calculation time a ton, Its also the main software for the bif movie effects.

[LauxHawk]

@coffeeolay Either way its quite accurate.

[GodzillaVideos]

No caustics? =(

[luketheduke0]

Very neat, must have taken a while to make. The refraction of the water makes it look a lot more realistic than other simulations.

[Darkomni]

a lot of cubes

[Westonci]

cool

[jasonrj8992]

cool, what the heck is this?