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Input Nodes

Camera Data

View Vector
A Camera space vector from the camera to the shading point.
View Z Depth
View Distance
Distance from the camera to the shading point.

Value

Input a scalar value.

Value
Value output.

RGB

Input an RGB color.

Color
RGB color output.

Attribute

Retrieve attribute attached to the object or mesh. Currently UV maps and vertex color layers can be retrieved this way by their names, with layers and attributes planned to be added. Also internal attributes like P (position), N (normal), Ng (geometric normal) may be accessed this way, although there are more convenient nodes for this.

Name
Name of the attribute.
Color output
RGB color interpolated from the attribute.
Vector output
XYZ vector interpolated from the attribute.
Fac output
Scalar value interpolated from the attribute.

Geometry

Geometric information about the current shading point. All vector coordinates are in World Space. For volume shaders, only the position and incoming vector are available.

Position
Position of the shading point.
Normal
Shading normal at the surface (includes smooth normals and bump mapping).
Tangent
Tangent at the surface.
True Normal
Geometry or flat normal of the surface.
Incoming
Vector pointing towards the point the shading point is being viewed from.
Parametric
Parametric coordinates of the shading point on the surface.
Backfacing
1.0 if the face is being viewed from the backside, 0.0 for the frontside.

Light Path

Node to find out for which kind of incoming ray the shader is being executed; particularly useful for non-physically based tricks. More information about the meaning of each type is in the Light Paths documentation.

Is Camera Ray output
1.0 if shading is executed for a camera ray, 0.0 otherwise.
Is Shadow Ray output
1.0 if shading is executed for a shadow ray, 0.0 otherwise.
Is Diffuse Ray output
1.0 if shading is executed for a diffuse ray, 0.0 otherwise.
Is Glossy Ray output
1.0 if shading is executed for a glossy ray, 0.0 otherwise.
Is Singular Ray output
1.0 if shading is executed for a singular ray, 0.0 otherwise.
Is Reflection Ray output
1.0 if shading is executed for a reflection ray, 0.0 otherwise.
Is Transmission Ray output
1.0 if shading is executed for a transmission ray, 0.0 otherwise.
Ray Length output
Distance traveled by the light ray from the last bounce or camera.

Object Info

Information about the object instance. This can be useful to give some variation to a single material assigned to multiple instances, either manually controlled through the object index, based on the object location, or randomized for each instance. For example a Noise texture can give random colors or a Color ramp can give a range of colors to be randomly picked from.

Location
Location of the object in world space.
Object Index
Object pass index, same as in the Object Index pass.transformed.
Material Index
Material pass index, same as in the Material Index pass.
Random
Random number unique to a single object instance.


Fresnel

Dielectric fresnel, computing how much light is refracted through and how much is reflected off a layer. The resulting weight can be used for layering shaders with the Mix Shader node. It is dependent on the angle between the surface normal and the viewing direction.

IOR input
Index of refraction of the material being entered.
Fresnel output
Fresnel weight, indicating the probability with which light will reflect off the layer rather than passing through.

Layer Weight

Output weights typically used for layering shaders with the Mix Shader node.

Blend input
Blend between the first and second shader.
Fresnel output
Dielectric fresnel weight, useful for example for layering diffuse and glossy shaders to create a plastic material. This is like the Fresnel node, except that the input of this node is in the often more-convenient 0.0 to 1.0 range.
Facing output
Weight that blends from the first to the second shader as the surface goes from facing the viewer to viewing it at a grazing angle.

Texture Coordinates

Commonly used texture coordinates, typically used as inputs for the Vector input for texture nodes.

Generated
Automatically generated texture coordinates from the vertex positions of the mesh without deformation, keeping them sticking to the surface under animation. Range from 0.0 to 1.0 over the bounding box of the undeformed mesh.
Normal
Object space normal, for texturing objects with the texture staying fixed on the object as it transforms.
UV
UV texture coordinates from the active render UV layer.
Object
Position coordinate in object space.
Camera
Position coordinate in camera space.
Window
Location of shading point on the screen, ranging from 0.0 to 1.0 from the left to right side and bottom to top of the render.
Reflection
Vector in the direction of a sharp reflection; typically used for environment maps.

Particle Info

For objects instanced from a particle system, this node give access to the data of the particle that spawned the instance.

Index
Index number of the particle (from 0 to number of particles).
Age
Age of the particle in frames.
Lifetime
Total lifespan of the particle in frames.
Location
Location of the particle.
Size
Size of the particle.
Velocity
Velocity of the particle.
Angular Velocity
Angular velocity of the particle.

Hair Info

This node gives access to strand information.

Is strand
Returns 1 when the shader is acting on a strand, otherwise 0.
Intersect
The point along the strand where the ray hits the strand (1 at the tip and 0 at the root).
Thickness
The thickness of the strand at the point where the ray hits the strand.
Tangent Normal
Tangent normal of the strand.

Tangent

Generates a tangent direction for the Anisotropic BSDF.

Direction Type
The tangent direction can be derived from a cylindrical projection around the X, Y or Z axis (Radial), or from a manually created UV Map for full control.
Tangent Output
The tangent direction vector.
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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