Thermal Lilette

Explosion Particle System

Overall Structure

CPU

• Particle info: lifetime (expiration time)
• Render setup
  • Scene creation: generate meshes
• Control: through IOM
  • Camera
  • Keys

GPU

• Render
• Particle simulation
  • State: position, velocity, presure, tempurature
  • Model: changes of states

Pipeline

1. [CPU] initialize + start render loop
2. [CPU -> GPU] transfer uniform
3. [CPU] update particle info
4. [GPU] update particle model
5. [GPU] update particle state
6. [GPU] render particle & objects
7. [GPU -> CPU] transfer result

Game Plan

Particle system

• Instances rendering
• Particle generation
• Constant acceleration field (e.g. earth gravity, simple buoyancy)

Test 1: water fountain, bubbles

Tools

• Design interface for scene creations
  • Click/drag interaction: create particle at positions
• Visualization of 3D texture: alpha blending projection plane
  • Adaptive plane projection

Test 2: water vapour in turbulence

Gas simulation

• Navier-Strokes Equation with u', x'

Explosion simulation

• Feldman's model I
  • Fluid/Gas model: u', p', T'
  • Particulate model: x'', Y'

Test 3.1: set phi/H'/f constant -> gas portal

• Feldman's model II: Combustion
  • Velocity div: d phi
  • Heat transfer: H'
  • External force: f
  • Soot: s (maybe?)

Test 3.2: explosion!

Interaction with objects (???)

Reference

• http://graphics.berkeley.edu/papers/Feldman-ASP-2003-08/Feldman-ASP-2003-08.pdf

Useful Links

• https://www.3dgep.com/simulating-particle-effects-using-opengl/