THE QUEST FOR BOOB JIGGLE IN

UNITYPART1:

INTRODUCTION

V1 2013/07/28Matumit Sombunjaroen

zenneth@zodiac-alliance.com

WHAT IS BOOB JIGGLE?

…Seriously, do you even need to ask?It’s what make those BOOBY bounce in

3DGames!

SO, HOW DO WE DO IT?There’s some options available.1. PreUnity-Baked animation

Manual Animation in DCC tool and Baked Physical or Spring-base Rig in DCC tool and

Baked2. Unity-In game Physic Calculation

Code base Physical Calculation Joint Base Physic Component

KEYFRAME BASED

The Bad:Same in-Game result, not affected by other in-Game

Factors.

The Good:Light on Game engine as extra Runtime process isn’t

needed.

What ever your DCC tools of choice is,Make it in there, then import to Unity.

IN-GAME PHYSIC CALCULATION

The Bad:Require Intensive Setup

The Good:Affected by In-Game factors. Adjustable.

Set it up in Unity and make it bounce while character move

MECANIMIn order to use Mecanim’s ability to transfer

animation across rig. A test was conducted

Models with various settings were used

From the Right:1. Original FBX with Animation2. FBX with no Animation

Attached, moved via Mecanim Controller

3. 2 with Added Physics

4. Test model with same Bone Naming structure

5. 4 with Added Physics6. Test model with different Bone

Naming structure7. 6 with Added Physics

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RESULTFrom the test, these conclusion were found1. In order for extended bones on the boobs to move as

in original Motion,The bones must be named with the exact same Naming Structure.

2. Added Physics can be lay on top of keyframed Boob bones.

3. In order for the boob to be solely dependent on Physics,they must not be keyframed upon export.

NEXT

PART2: SETTING UP BOOB