AtomicBombTutorial_EN.pdf

Simplified tutorial: Massive explosion - Blender

Atomic bomb with Blender!

New version!

Previous version:

Fweibel.com

1/12

¨2008 Fweibel

Simplified tutorial: Massive explosion - Blender

Introduction

This article was created for people who are interested in creating virtual special

effects with blender.

This is the 2 nd tutorial I wrote about this subject. This one has been simplified.

Anyway, it requires some basis with blenderÈ

Global method

This technique I developed to simulate a massive explosion mainly uses the

displace modifier:

Raw meshes objects (without displacement)

Fireball

ColumnTop

Column

Shockwave

Meshes objects (with displacement and subsurf level 4)

Fweibel.com

2/12

¨2008 Fweibel

Simplified tutorial: Massive explosion - Blender

Massive explosion smoke dynamics

This picture shows the global dynamic of gazes produced by nuclear fission:

Warm burning gases rises and cool down with the altitude, which creates this

rolling effect on the fireball

To simulate this, weÔll use 3 emptyÔs which will be uses for displaced textureÔs

coords.

Æ EmptyÔs Ç for textureÔs animations

Æ Up Ç

Æ Fix Ç

Æ Down Ç

Adjust their size to obtain the best looking result when the modifiers have been

added (see below)

Fweibel.com

3/12

¨2008 Fweibel

Simplified tutorial: Massive explosion - Blender

IPOs: Æ Up Ç Æ Down Ç

Textures used for displacement

ÑDispl 1Ò

Large noise, this texture will be used to change the global aspect of each

mesh objects.

ÑDispl 2Ò

ÑDispl 3Ò

Small noise, for more detailsÈ

Fweibel.com

4/12

¨2008 Fweibel

Simplified tutorial: Massive explosion - Blender

Meshes: Shockwave

Animation

IPO keys (scale): Frame 100 : X,Y,Z = 0.0

Frame 500 : X, Y = 2.0 ; Z = 1.5

The shape of the curves are important, it

will give the damping effect : Quick

growth at the begining, then slowing

down

Note : Shockwave grew less in height

than in width

Modifiers

Subsurf : Here you can change the level

of details.

High values will increase the render time

1 st deformation level:

Make the global shape of the object

changes

2 nd deformation level:

More detailed. I used vertex groups to

randomize the displacement level over

the objectÔs surface.

3 rd deformation level:

Also use of vertex groups

Fweibel.com

5/12

¨2008 Fweibel

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika: