Unigine.vec4 Struct

vec4 Class

Members

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vec4 ( ) #

Default constructor. Produces a zero vector.

vec4 ( vec4 v ) #

Constructor. Initializes the vector by copying a given source vector.

Arguments

• vec4 v - Source vector.

vec4 ( vec2 v, float z, float w ) #

Constructor. Initializes the vector using a given two-component vec2 source vector and two scalars.

Arguments

• vec2 v - Two-component source vector.
• float z - Z component of the vector.
• float w - W component of the vector.

vec4 ( vec3 v, float w ) #

Constructor. Initializes the vector using a given three-component vec3 source vector and a scalar.

Arguments

• vec3 v - Three-component source vector.
• float w - W component of the vector.

vec4 ( float x, float y, float z, float w ) #

Constructor. Initializes the vector using given float values.

Arguments

• float x - X component of the vector.
• float y - Y component of the vector.
• float z - Z component of the vector.
• float w - W component of the vector.

vec4 ( float v ) #

Constructor. Initializes the vector using a given scalar value: x=v, y=v, z=v, w=v.

Arguments

• float v - Scalar value.

vec4 ( vec2 v ) #

Constructor. Initializes the vector using a given two-component vec2 source vector: x=v.x, y=v.y, z=0.0f, w=1.0f.

Arguments

• vec2 v - Two-component source vector.

vec4 ( vec3 v ) #

Constructor. Initializes the vector using a given three-component vec3 source vector: x=v.x, y=v.y, z=v.z, w=1.0f.

Arguments

• vec3 v - Three-component source vector.

vec4 ( dvec4 v ) #

Constructor. Initializes the vector using a given dvec4 source vector.

Arguments

• dvec4 v - Source vector.

vec4 ( ivec4 v ) #

Constructor. Initializes the vector using a given ivec4 source vector.

Arguments

• ivec4 v - Source vector.

vec4 ( bvec4 v ) #

Constructor. Initializes the vector using a given bvec4 source vector.

Arguments

• bvec4 v - Source vector.

vec4 ( svec4 v ) #

Constructor. Initializes the vector using a given svec4 source vector.

Arguments

• svec4 v - Source vector.

vec4 ( float[] v ) #

Constructor. Initializes the vector using a given pointer to the array of float elements: x=v[0], y=v[1], z=v[2], w=v[3].

Arguments

• float[] v - Pointer to the array of float elements.

vec4 Abs ( ) #

Returns the absolute values of the vector components.

Return value

Vector with absolute values.

float Length ( ) #

Returns the length of the vector.

Return value

Vector length.

float Length2 ( ) #

Returns the squared length of the vector.

Return value

Squared length of the vector.

float MaxXY ( ) #

Compares the X and Y components of the vector and returns the greater one.

Return value

The greater out of the X and Y components of the vector.

float MaxXYZ ( ) #

Compares the X, Y, and Z components of the vector and returns the greatest one.

Return value

The greatest out of the X, Y, and Z vector components.

float Max ( ) #

Compares all components of the vector and returns the greatest value.

Return value

The greatest out of the vector components.

vec4 Normalize ( ) #

Returns normalized vector.

Return value

Normalized vector.

vec4 NormalizeValid ( ) #

Normalizes a vector, makes its magnitude equal to 1. When normalized, a vector keeps the same direction but its length is equal to 1. Check for the zero vector is performed: if the argument is a zero vector, then a zero vector is returned.

Return value

Normalized vector.

vec4 NormalizeFast ( ) #

Returns normalized vector, calculated using the fast inverse square root algorithm.

Return value

Normalized vector.

vec4 NormalizeValidFast ( ) #

Returns normalized vector, calculated using the fast inverse square root algorithm. Check for the zero vector is performed: if the argument is a zero vector, then a zero vector is returned.

Return value

Normalized vector.

vec4 Normalize3 ( ) #

Returns the vector with normalized XYZ components.

Return value

Vector with normalized XYZ components.

vec4 NormalizeValid3 ( ) #

Returns the vector with normalized XYZ components. Check for the zero vector is performed: if the argument is a zero vector, then a zero vector is returned.

Return value

Vector with normalized XYZ components.

vec4 NormalizeFast3 ( ) #

Returns the vector with XYZ components normalized using the fast inverse square root algorithm.

Return value

Vector with normalized XYZ components.

vec4 NormalizeValidFast3 ( ) #

Returns the vector with XYZ components normalized using the fast inverse square root algorithm. Check for the zero vector is performed: if the argument is a zero vector, then a zero vector is returned.

Return value

Vector with normalized XYZ components.

vec4 Operator*= ( float val ) #

Performs scalar multiplication.

Arguments

• float val - Scalar value.

Return value

Resulting vector.

vec4 Operator*= ( vec4 val ) #

Performs vector multiplication.

Arguments

• vec4 val - Vector.

Return value

Resulting vector.

vec4 Operator+= ( vec4 val ) #

Performs vector addition.

Arguments

• vec4 val - Vector.

Return value

Resulting vector.

vec4 Operator- ( ) #

Performs vector negation.

Return value

Resulting vector.

vec4 Operator-= ( vec4 val ) #

Performs vector subtraction.

Arguments

• vec4 val - Vector.

Return value

Resulting vector.

float & Operator[] ( int i ) #

Performs array access to the vector item reference by using given item index.

Arguments

• int i - Vector item index.

Return value

Vector item reference.

float Operator[] ( int i ) #

Performs array access to the vector item by using given item index.

Arguments

• int i - Vector item index.

Return value

Vector item.