Andrew Price. Introduction to Smoke Simulation in Blender 2.5.

Andrew Price

Introduction to Smoke Simulation in Blender 2.5

Presentation Overview

Old vs New – What's changed? How it works Using the interface Rendering smoke Known Issues Future Developments Creating a smoke grenade

Old vs New – What's Changed?

Old System

New System

How it works

Domain

Flow

Using the Interface

Domain

24

32

40

50

60

70

80

Resolution Tests

24 32 40

50

60 70 80

“enables large- and small-scale detail to be edited separately, allowing high-resolution detail

to be added as a post-processing step.”

What's Wavelet?

-Nils Thürey, 2008 Siggraph Wavelet Paper, (Co-author)

et (2k) = et (k)2−53, et (1) =Ce 23

turbulence(x) =imax åi=iminp (2ix) 12i−imin

U(X) = I (u,X)+2−5 6 I be x, n 2 ,X z(I ,X)).

Simply put: The good stuff

Baking TimesLow Resolution High Resolution

24 seconds 6 minutes 24 seconds

Flow

Rendering smoke

Fixed!

Smoke Density

0.2 0.5 1

2 4

Shadows

Known Issues

Future Developments

Creating a smoke grenade

Domain

Domain

Emitter

Domain

Emitter

Empty

References:

Wavelet Paper, http://www.cs.cornell.edu/~tedkim/WTURB/