Animation and Planning in Games

Assignment Two : Physics Based Animations

For assignment two I took two approaches for simulating water. My first attempt was to replicate the method in Particle-based Viscoelastic Fluid Simulation. I ended up with a working implemtation of their method without the viscoelasticity. My second approach solves the less general problem of shallow water dynamics, but ends up with a nice visual in the end..

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Tools used

G3D (graphics engine) : https://g3d.sourceforge.net/

This basically serves as a wrapper around openGL calls, and provides utility classes such as Vectors and Cameras. I still wrote all the shaders for this project as well as all of the particle system code.

GroundTexture : https://www.startextures.com/free-nature-texture-2585.html

I used this nice open souce underwater vegetation for a better effect with my water simulations.

Features

Listed in assignment description

Realtime 3D SPH on the CPU
2D Shallow Water
Ray Traced Water (2D shallow only)
3D controlled camera (I used a G3D camera manipulator class)
3D implementation
Realtime rendering
Video documentation
Lax-Wendroff integration
Real-time user interaction with system
Art Contest Submissions, see below

Art Gallery

I wanted to share more than one image from my shallow water method, so here is my album titled "The World is a Beautiful Place at Four in the Morning." If I had to choose one for the art contest I would submit the 4th one in the album aka "Bloooop blooop bloop blop plob plib".

User Controls

"1" - Reset SPH particles.
"2" - Reset shallow water simulation.
"3" - Toggle which simulation to view.
"p" - Pause simulation.
"o" - Toggle slow motion mode of simulation.
"r" - Toggle render mode of shallow water simulation.
"g" - Toggle gravity on SPH simulation.
"h" - Toggle constraints on SPH simulation.
"space" - Add water (both systems).