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Unigine.Unigine::vec4 Struct

This class represents a vector of 4 float components.

vec4 Class

Members


vec4()

Default constructor. Produces a zero vector.

vec4(const vec4 & v)

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

Arguments

  • const vec4 & v - Source vector.

vec4(const vec2 & v, float z, float w)

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

Arguments

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

vec4(const vec3 & v, float w)

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

Arguments

  • const 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.

explicit 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.

explicit vec4(const 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

  • const vec2 & v - Two-component source vector.

explicit vec4(const 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

  • const vec3 & v - Three-component source vector.

explicit vec4(const dvec4 & v)

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

Arguments

  • const dvec4 & v - Source vector.

explicit vec4(const ivec4 & v)

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

Arguments

  • const ivec4 & v - Source vector.

explicit vec4(const bvec4 & v)

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

Arguments

  • const bvec4 & v - Source vector.

explicit vec4(const 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

  • const float * v - Pointer to the array of float elements.

void set(float x_, float y_, float z_, float w_)

Sets the vector by components.

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.

void set(const float * val)

Sets the vector using the array of float elements: x=val[0], y=val[1], z=val[2], w=val[3].

Arguments

  • const float * val - Pointer to the array of float elements.

void get(float * val) const

Gets the vector: val[0]=x, val[1]=y, val[2]=z, val[3]=w.

Arguments

  • float * val - Pointer to the array of float elements.

float * get()

Returns the pointer to the vector.

Return value

Pointer to the vector.

const float * get() const

Returns the constant pointer to the vector.

Return value

Pointer to the vector.

vec4 & operator*=(float val)

Performs scalar multiplication.

Arguments

  • float val - Scalar value.

Return value

Resulting vector.

vec4 & operator*=(const vec4 & val)

Performs vector multiplication.

Arguments

  • const vec4 & val - Vector.

Return value

Resulting vector.

vec4 & operator+=(const vec4 & val)

Performs vector addition.

Arguments

  • const vec4 & val - Vector.

Return value

Resulting vector.

vec4 operator-() const

Performs vector negation.

Return value

Resulting vector.

vec4 & operator-=(const vec4 & val)

Performs vector subtraction.

Arguments

  • const 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) const

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

Arguments

  • int i - Vector item index.

Return value

Vector item.

vec4 BLUE

Description

Blue color vector (0, 0, 1 1).

vec4 BLACK

Description

Black color vector (0, 0, 0 0).

vec4 EPS

Description

Vector, filled with epsilon constant (1e-6f).

vec4 GREEN

Description

Green color vector (0, 1, 0 1).

vec4 INF

Description

Vector, filled with infinity constant (1e+9f).

vec4 ONE

Description

Vector, filled with ones (1).

vec4 RED

Description

Red color vector (1, 0, 0 1).

vec4 WHITE

Description

White color vector (1, 1, 1 1).

vec4 ZERO

Description

Vector, filled with zeros (0).
Last update: 2018-06-04
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