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Smoke Simulation

Development notes

Blender's new smoke simulation is based on the paper 'Wavelet Turbulence for Fluid Simulation' and associated sample code.

It has been implemented in Blender by Daniel Genrich and Miika Hamalainen.

Inner working

The simulator uses a volumetric fluid-based model, with the end results output as voxel grids. This voxel data is visualized interactively in Blender's 3D view using custom OpenGL shading, and can be rendered using the Voxel Data texture. Blender's smoke simulation wraps Voxels around existing Particles. It requires a particle-emitting object and a 'domain' object within which smoke is rendered.

Note
This Part of the Documentation uses the 2.58 Release


User workflow

The smoke simulation is similar to the Fluid simulation: a Domain and Flow object is required to do a smoke simulation:

  • set as the simulation Domain an object that defines the bounds of the simulation volume,
  • set as the Flow object an object which determines where the smoke will be produced from,
  • set Collision objects, to make the smoke interact with objects in the scene.
  • assign a Material to the smoke
  • save the project
  • bake the simulation

In case you are having troubles, please consult the Appendix



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User Manual

World and Ambient Effects

World

Introduction
World Background

Ambient Effects

Mist
Stars (2.69)


Game Engine

Introduction

Introduction to the Game Engine
Game Logic Screen Layout

Logic

Logic Properties and States
The Logic Editor

Sensors

Introduction to Sensors
Sensor Editing
Common Options
-Actuator Sensor
-Always Sensor
-Collision Sensor
-Delay Sensor
-Joystick Sensor
-Keyboard Sensor
-Message Sensor
-Mouse Sensor
-Near Sensor
-Property Sensor
-Radar Sensor
-Random Sensor
-Ray Sensor
-Touch Sensor

Controllers

Introduction
Controller Editing
-AND Controller
-OR Controller
-NAND Controller
-NOR Controller
-XOR Controller
-XNOR Controller
-Expression Controller
-Python Controller

Actuators

Introduction
Actuator Editing
Common Options
-2D Filters Actuator
-Action Actuator
-Camera Actuator
-Constraint Actuator
-Edit Object Actuator
-Game Actuator
-Message Actuator
-Motion Actuator
-Parent Actuator
-Property Actuator
-Random Actuator
-Scene Actuator
-Sound Actuator
-State Actuator
-Steering Actuator
-Visibility Actuator

Game Properties

Introduction
Property Editing

Game States

Introduction

Camera

Introduction
Camera Editing
Stereo Camera
Dome Camera

World

Introduction

Physics

Introduction
Material Physics
No Collision Object
Static Object
Dynamic Object
Rigid Body Object
Soft Body Object
Vehicle Controller
Sensor Object
Occluder Object

Path Finding

Navigation Mesh Modifier

Game Performance

Introduction
System
Display
Framerate and Profile
Level of Detail

Python API

Introduction
Bullet physics
VideoTexture

Deploying

Standalone Player
Licensing of Blender Game

Android Support

Android Game development