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Extending Blender

Unlike many programs you may be familiar with, Blender is not monolithic and static. You can extend its functionality with Python scripting without having to modify the source and recompile.

Addons

Addons are scripts you can enable to gain extra functionality within Blender, they can be enabled from the user preferences.

Outside of the Blender executable, there are literally hundreds of addons written by many people:

  • Officially supported addons are bundled with Blender.
  • Other Testing addons are included in development builds but not official releases, many of them work reliably and are very useful but are not ensured to be stable for release.

An Overview of all addons is available in this wiki in the Scripts Catalog and in the Extensions tracker.

Scripts

Apart from addons there are also scripts you can use to extend Blenders functionality:

  • Modules: Utility libraries for import into other scripts.
  • Presets: Settings for Blender's tools and key configurations.
  • Startup: These files are imported when starting Blender. They define most of Blender's UI, as well as some additional core operators.
  • Custom scripts: In contrast to addons they are typically intended for one-time execution via the text editor

Saving your own scripts

File location

All scripts are loaded from the scripts folder of the local, system and user paths.

You can setup an addittional search path for scripts in User preferences (User Preferences → File Paths).

Installation

Addons are conveniently installed through Blender in the User Preferences → Addons window. Click the Install from File... button and select the .py or .zip file.

To manually install scripts or addons place them in the addons, modules, presets or startup directory according to their type. See the description above.

You can also run scripts by loading them in the text editor window.



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This is the old manual!
For the current 2.7x manual see http://www.blender.org/manual/


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