Unigine::Math::vec4 Struct
| Header: | #include <UnigineMathLibVec4.h> |
vec4 Class
Members
vec4 ( const __m128& v ) #
Constructor. Initializes the vector using a given 128-bit variable as a source.Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.
Arguments
- const __m128& v - 128-bit variable
vec4 ( const quat& q ) #
Constructor. Initializes the vector using a given source quaternion.Arguments
- const quat& q
vec4 ( const hvec4& v ) #
Constructor. Initializes the vector using a given hvec4 source vector.Arguments
- const hvec4& v - Source vector.
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 svec4& v ) #
Constructor. Initializes the vector using a given svec4 source vector.Arguments
- const svec4& 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.
vec4 ( const dvec2& v0, const dvec2& v1 ) #
Constructor. Initializes the vector using given two dvec2 source vectors.Arguments
- const dvec2& v0 - Two-component source vector.
- const dvec2& v1 - Two-component source vector.
vec4 ( const vec2& v0, const vec2& v1 ) #
Constructor. Initializes the vector using given two vec2 source vectors.Arguments
- const vec2& v0 - Two-component source vector.
- const vec2& v1 - Two-component source vector.
vec4 ( float x, float y, float z, float w, ConstexprTag ) #
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.
- ConstexprTag - Auxiliary tag.
vec4 ( float v, ConstexprTag ) #
Constructor. Initializes the vector using a given constant scalar value: x=v, y=v, z=v, w=v.Arguments
- float v - Constant scalar value.
- ConstexprTag - Auxiliary tag.
vec4 & abs ( ) #
Returns the absolute values of the vector components.Return value
Vector with absolute values.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* v ) #
Sets the vector using the array of float elements: x=val[0], y=val[1], z=val[2], w=val[3].Arguments
- const float* v - Pointer to the array of float elements.
void set ( const vec4& v ) #
Sets the vector equal to the specified source vector.Arguments
- const vec4& v - Source vector.
void set ( const vec2& v, float z_, float w_ ) #
Sets the vector using a 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.
void set ( const vec3& v, float w_ ) #
Sets the vector using a three-component vec3 source vector and a scalar.Arguments
- const vec3& v - Three-component source vector.
- float w_ - W component of the vector.
void set ( const quat& q ) #
Sets the vector using a quaternion.Arguments
- const quat& q - Quaternion.
void set ( float v ) #
Sets the vector components equal to specified scalar value: x=val, y=val, z=val, w=val.Arguments
- float v - Scalar value.
void get ( float* v ) const#
Gets the vector: val[0]=x, val[1]=y, val[2]=z, val[3]=w.Arguments
- float* v - 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.float length ( ) const#
Returns the length of the vector.Return value
Vector length.float length2 ( ) const#
Returns the squared length of the vector.Return value
Squared length of the vector.float maxXY ( ) const#
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 ( ) const#
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 ( ) const#
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.const float * operator const float * ( ) const#
Performs type conversion to const float *.const void * operator const void * ( ) const#
Performs type conversion to const void *.float * operator float * ( ) #
Performs type conversion to float *.void * operator void * ( ) #
Performs type conversion to void *.vec4 & operator*= ( float v ) #
Performs scalar multiplication.Arguments
- float v - Scalar value.
Return value
Resulting vector.vec4 & operator*= ( const vec4& v ) #
Performs vector multiplication.Arguments
- const vec4& v - Vector.
Return value
Resulting vector.vec4 & operator+= ( const vec4& v ) #
Performs vector addition.Arguments
- const vec4& v - Vector.
Return value
Resulting vector.vec4 operator- ( ) const#
Performs vector negation.Return value
Resulting vector.vec4 & operator-= ( const vec4& v ) #
Performs vector subtraction.Arguments
- const vec4& v - Vector.
Return value
Resulting vector.vec4 & operator/= ( float v ) #
Performs componentwise division of the vector by the scalar. Implemented using the calculation of inverse scalar value with subsequent by-component multiplication.Arguments
- float v - Scalar value.
Return value
Resulting vector.Examples
Source code (UnigineScript)
vec4 a = vec4(6.0, 10.0, 12.0, 25.0);
a /= 2.0;
/*
Initial value of vector a:
a (6.0, 10.0, 12.0, 25.0)
a /= 2.0;
Vector a after operation:
a (3.0, 5.0, 6.0, 12.5)
*/vec4 & operator/= ( const vec4& v ) #
Performs componentwise division of vectors.Arguments
- const vec4& v - Vector.
Return value
Resulting vector.Examples
Source code (UnigineScript)
vec4 a, b;
a = vec4(6.0, 10.0, 12.0, 25.0);
b = vec4(2.0, 5.0, 6.0, 5.0);
a /= b;
/*
Initial values of vectors a and b:
a (6.0, 10.0, 12.0, 25.0)
b (2.0, 5.0, 6.0, 5.0)
a /= b;
Vector a after operation:
a (3.0, 2.0, 2.0, 5.0)
*/vec4 & operator= ( const __m128& v ) #
Sets the vector using a given 128-bit variable as a source.Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.
Arguments
- const __m128& v - 128-bit variable.
Return value
Vector.vec4 & operator= ( const vec4& v ) #
Performs vector assignment. Destination vector = Source vector.Arguments
- const vec4& v - Source vector.
Return value
Result.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.void mul ( float v ) #
Multiplies the vector by the value of the specified argument.Arguments
- float v - A float multiplier.
void mul ( const vec4& v ) #
Multiplies the vector by the value of the specified argument.Arguments
- const vec4& v - Vector multiplier.
void mul3 ( float v ) #
Multiplies the X, Y, and Z components of the vector by the value of the specified argument.Arguments
- float v - A float multiplier.
void div ( float v ) #
Returns the result of division of the vector by the value of the specified arguments.Arguments
- float v - A float divisor value.
void div ( const vec4& v ) #
Returns the result of division of the vector by the value of the specified arguments.Arguments
- const vec4& v - A vec3 divisor value.
float sum ( ) const#
Returns the sum of vector components.void add ( float v ) #
Performs addition of the specified argument.Arguments
- float v - Value.
void add ( const vec4& v ) #
Performs addition of the specified argument.Arguments
- const vec4& v - Value.
vec4 & operator+= ( float v ) #
Performs addition of the specified value.Arguments
- float v - Value.
Return value
This vector.void sub ( float v ) #
Subtracts the argument from all elements of the vector.Arguments
- float v - Value.
void sub ( const vec4& v ) #
Subtracts each element of the specified argument from ther corresponding element.Arguments
- const vec4& v - Value.
vec4 & operator-= ( float v ) #
Subtracts the argument from all elements of the vector.Arguments
- float v - Value.
Return value
This vector.vec4 & operator= ( const float v ) #
Sets the vector components equal to specified scalar value: x=val, y=val, z=val, w=val.Arguments
- const float v - Scalar value.
Return value
This vector.float lengthFast ( ) const#
Returns the length of the vector (fast version).float iLength ( ) const#
Returns the inverted length of the vector.float iLengthFast ( ) const#
Returns the inverted length of the vector (fast version).static vec4 parseColor ( const char * str ) #
Converts a color string in the Web format (RRGGBB / #RRGGBB or RRGGBBAA / #RRGGBBAA) into its vec4 equivalent.Arguments
- const char * str - Color string in the Web format.
Return value
Color value as a vec4 vector (R, G, B, A).unsigned int hash ( ) const#
Last update:
14.12.2022
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