Unigine::Math::dvec4 Struct

功能列表:

Name	描述 View: Sort by:
dvec4	Constructor.
abs	Returns the absolute values of the vector components.
set	Sets the vector by components.
get	Gets the vector: val[0]=x, val[1]=y, val[2]=z, val[3]=w.
length	Returns the length of the vector.
length2	Returns the squared length of the vector.
normalize	Returns normalized vector.
normalizeValid	Normalizes a vector, makes its magnitude equal to 1.
normalize3	Returns the vector with normalized XYZ components.
normalizeValid3	Returns the vector with normalized XYZ components.
operator const double *	Performs type conversion to const double *.
operator const void *	Performs type conversion to const void *.
operator double *	Performs type conversion to double *.
operator void *	Performs type conversion to void *.
*operator =**	Performs scalar multiplication.
operator +=	Performs vector addition.
operator -	Performs vector negation.
operator -=	Performs vector subtraction.
operator /=	Performs componentwise division of vectors.
operator =	Performs vector assignment.
operator []	Performs array access to the vector item reference by using given item index.
mul	Multiplies the vector by the value of the specified argument.
mul3	Multiplies the X, Y, and Z components of the vector by the value of the specified argument.
div	Returns the result of division of the vector by the value of the specified arguments.
sum	Returns the sum of vector components.
add	Performs addition of the specified value.
operator +=	Performs addition of the specified value.
sub	Subtracts each element of the specified value from the corresponding vector's element.
operator -=	Subtracts each element of the specified value from the corresponding vector's element.
iLength	Returns the inverted length of the vector.
maxXY	Returns the maximum of X and Y components.
maxXYZ	Returns the maximum of X, Y, and Z components.
max	Returns the maximum of X, Y, Z, and W components.
hash	Returns a hash obtained by mixing the hash values of vector components.

Variables:

Name	Description
dvec4_eps	Vector filled with epsilon constant (1e-6f).
dvec4_inf	Vector filled with infinity constant (1e+9f).
dvec4_one	Vector filled with ones (1).
dvec4_zero	Vector filled with zeros (0).

dvec4 Class

Members

dvec4 ( const hvec4& v ) #

Constructor. Initializes the vector using a given hvec4 source vector.

Arguments

const hvec4& v - Source vector.

dvec4 ( ) #

Default constructor. Produces a zero vector.

dvec4 ( const dvec4& v ) #

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

Arguments

const dvec4& v - Source vector.

dvec4 ( const dvec2& v, double z, double w ) #

Constructor. Initializes the vector using a given two-component dvec2 source vector and two scalars.

Arguments

const dvec2& v - Two-component source vector.
double z - Z component of the vector.
double w - W component of the vector.

dvec4 ( const dvec3& v, double w ) #

Constructor. Initializes the vector using a given three-component dvec3 source vector and a scalar.

Arguments

const dvec3& v - Three-component source vector.
double w - W component of the vector.

dvec4 ( double x, double y, double z, double w ) #

Constructor. Initializes the vector using given double values.

Arguments

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

Examples

Source code (UnigineScript)

dvec4(1.0, 2.0, 3.0, 4.5);
/*
Creates a vector (1.0, 2.0, 3.0, 4.5)
*/

explicit dvec4 ( double v ) #

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

Arguments

double v - Scalar value.

explicit dvec4 ( const dvec2& v ) #

Constructor. Initializes the vector using a given two-component dvec2 source vector: x=v.x, y=v.y, z=0.0f, w=1.0f.

Arguments

const dvec2& v - Two-component source vector.

explicit dvec4 ( const dvec3& v ) #

Constructor. Initializes the vector using a given three-component dvec3 source vector: x=v.x, y=v.y, z=v.z, w=1.0f.

Arguments

const dvec3& v - Three-component source vector.

explicit dvec4 ( const vec4& v ) #

Constructor. Initializes the vector using a given vec4 source vector.

Arguments

const vec4& v - Source vector.

explicit dvec4 ( const ivec4& v ) #

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

Arguments

const ivec4& v - Source vector.

explicit dvec4 ( const bvec4& v ) #

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

Arguments

const bvec4& v - Source vector.

explicit dvec4 ( const svec4& v ) #

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

Arguments

const svec4& v - Source vector.

explicit dvec4 ( const double* v ) #

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

Arguments

const double* v - Pointer to the array of double elements.

dvec4 ( const m128d& v0, const m128d& v1 ) #

Constructor. Initializes the vector using two __m128d variables.

NoticeWe do not recommend to use this method unless you have a clear understanding of SSE2.

Arguments

const __m128d& v0 - X and Y components of the vector in __m128d format.
const __m128d& v1 - Z and W components of the vector in __m128d format.

dvec4 ( const dvec2& v0, const dvec2& v1 ) #

Constructor. Initializes the vector using two dvec2 vectors.

Arguments

const dvec2& v0 - Two-component source vector for X and Y components.
const dvec2& v1 - Two-component source vector for Z and W components.

dvec4 ( double x, double y, double z, double w, ConstexprTag ) #

Constructor. Initializes the vector using given constant double values.

Arguments

double x - X component of the vector.
double y - Y component of the vector.
double z - Z component of the vector.
double w - W component of the vector.
ConstexprTag - Auxiliary tag.

dvec4 ( double v, ConstexprTag ) #

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

Arguments

double v - Constant scalar value.
ConstexprTag - Auxiliary tag.

dvec4 & abs ( ) #

Returns the absolute values of the vector components.

Return value

Vector with absolute values.

void set ( double x_, double y_, double z_, double w_ ) #

Sets the vector by components.

Arguments

double x_ - X component of the vector.
double y_ - Y component of the vector.
double z_ - Z component of the vector.
double w_ - W component of the vector.

void set ( const double* v ) #

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

Arguments

const double* v - Pointer to the array of double elements.

void set ( const dvec4& v ) #

Sets the vector equal to the specified source vector.

Arguments

const dvec4& v - Source vector.

void set ( const dvec3& v, double w_ ) #

Sets the vector using a three-component dvec3 source vector and a scalar.

Arguments

const dvec3& v - Three-component source vector.
double w_ - W component of the vector.

void set ( double v ) #

Sets the vector components equal to specified scalar value: x=val, y=val, z=val, w=val.

Arguments

double v - Scalar value.

void set ( const dvec2& v, double z_, double w_ ) #

Sets the vector using a two-component dvec2 source vector and two scalars.

Arguments

const dvec2& v - Two-component source vector.
double z_ - Z component of the vector.
double w_ - W component of the vector.

void get ( double* v ) const#

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

Arguments

double* v - Pointer to the array of double elements.

double * get ( ) #

Returns the pointer to the vector.

Return value

Pointer to the vector.

const double * get ( ) const#

Returns the constant pointer to the vector.

Return value

Pointer to the vector.

double length ( ) const#

Returns the length of the vector.

Return value

Vector length.

double length2 ( ) const#

Returns the squared length of the vector.

Return value

Squared length of the vector.

dvec4 & normalize ( ) #

Returns normalized vector.

Return value

Normalized vector.

dvec4 & 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.

dvec4 & normalize3 ( ) #

Returns the vector with normalized XYZ components.

Return value

Vector with normalized XYZ components.

dvec4 & 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.

const double * operator const double * ( ) const#

Performs type conversion to const double *.

const void * operator const void * ( ) const#

Performs type conversion to const void *.

double * operator double * ( ) #

Performs type conversion to double *.

void * operator void * ( ) #

Performs type conversion to void *.

dvec4 & operator*= ( double v ) #

Performs scalar multiplication.

Arguments

double v - Scalar value.

Return value

Resulting vector.

dvec4 & operator*= ( const dvec4& v ) #

Performs vector multiplication.

Arguments

const dvec4& v - Vector.

Return value

Resulting vector.

dvec4 & operator+= ( const dvec4& v ) #

Performs vector addition.

Arguments

const dvec4& v - Vector.

Return value

Resulting vector.

dvec4 operator- ( ) const#

Performs vector negation.

Return value

Resulting vector.

dvec4 & operator-= ( const dvec4& v ) #

Performs vector subtraction.

Arguments

const dvec4& v - Vector.

Return value

Resulting vector.

dvec4 & operator/= ( const dvec4& v ) #

Performs componentwise division of vectors.

Arguments

const dvec4& v - Vector.

Return value

Resulting vector.

Examples

Source code (UnigineScript)

dvec4 a, b;
a = dvec4(6.0, 10.0, 12.0, 25.0);
b = dvec4(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)	
*/

dvec4 & operator/= ( double v ) #

Performs componentwise division of the vector by the scalar. Implemented using the calculation of inverse scalar value with subsequent by-component multiplication.

Arguments

double v - Scalar value.

Return value

Resulting vector.

Examples

Source code (UnigineScript)

dvec4 a = dvec4(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)	
*/

dvec4 & operator= ( const dvec4& v ) #

Performs vector assignment. Destination vector = Source vector.

Arguments

const dvec4& v - Source vector.

Return value

Result.

double & 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.

double 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 ( double v ) #

Multiplies the vector by the value of the specified argument.

Arguments

double v - A double multiplier.

void mul ( const dvec4& v ) #

Multiplies the vector by the value of the specified argument.

Arguments

const dvec4& v - Vector multiplier.

void mul3 ( double v ) #

Multiplies the X, Y, and Z components of the vector by the value of the specified argument.

Arguments

double v - A double multiplier.

void div ( double v ) #

Returns the result of division of the vector by the value of the specified arguments.

Arguments

double v - A double divisor value.

void div ( const dvec4& v ) #

Returns the result of division of the vector by the value of the specified arguments.

Arguments

const dvec4& v - A dvec4 divisor value.

double sum ( ) const#

Returns the sum of vector components.

void add ( double v ) #

Performs addition of the specified value.

Arguments

double v - Value.

void add ( const dvec4& v ) #

Performs addition of the specified value.

Arguments

const dvec4& v - Value.

dvec4 & operator+= ( double v ) #

Performs addition of the specified value.

Arguments

double v - Value.

void sub ( double v ) #

Subtracts each element of the specified value from the corresponding vector's element.

Arguments

double v - Value.

void sub ( const dvec4& v ) #

Subtracts each element of the specified value from the corresponding vector's element.

Arguments

const dvec4& v - Value.

dvec4 & operator-= ( double v ) #

Subtracts each element of the specified value from the corresponding vector's element.

Arguments

double v - Value.

double iLength ( ) const#

Returns the inverted length of the vector.

double maxXY ( ) const#

Returns the maximum of X and Y components.

double maxXYZ ( ) const#

Returns the maximum of X, Y, and Z components.

double max ( ) const#

Returns the maximum of X, Y, Z, and W components.

unsigned int hash ( ) const#

Returns a hash obtained by mixing the hash values of vector components.

Return value

32-bit hash value.

Last update: 2024-10-30

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Unigine::Math::dvec4 Struct

In This Article:

功能列表:

Variables:

dvec4 Class

Members

dvec4 ( const hvec4& v ) #

Arguments

dvec4 ( ) #

dvec4 ( const dvec4& v ) #

Arguments

dvec4 ( const dvec2& v, double z, double w ) #

Arguments

dvec4 ( const dvec3& v, double w ) #

Arguments

dvec4 ( double x, double y, double z, double w ) #

Arguments

Examples

explicit dvec4 ( double v ) #

Arguments

explicit dvec4 ( const dvec2& v ) #

Arguments

explicit dvec4 ( const dvec3& v ) #

Arguments

explicit dvec4 ( const vec4& v ) #

Arguments

explicit dvec4 ( const ivec4& v ) #

Arguments

explicit dvec4 ( const bvec4& v ) #

Arguments

explicit dvec4 ( const svec4& v ) #

Arguments

explicit dvec4 ( const double* v ) #

Arguments

dvec4 ( const __m128d& v0, const __m128d& v1 ) #

Arguments

dvec4 ( const dvec2& v0, const dvec2& v1 ) #

Arguments

dvec4 ( double x, double y, double z, double w, ConstexprTag ) #

Arguments

dvec4 ( double v, ConstexprTag ) #

Arguments

dvec4 & abs ( ) #

Return value

void set ( double x_, double y_, double z_, double w_ ) #

Arguments

void set ( const double* v ) #

Arguments

void set ( const dvec4& v ) #

Arguments

void set ( const dvec3& v, double w_ ) #

Arguments

void set ( double v ) #

Arguments

void set ( const dvec2& v, double z_, double w_ ) #

Arguments

void get ( double* v ) const#

Arguments

double * get ( ) #

Return value

const double * get ( ) const#

Return value

double length ( ) const#

Return value

double length2 ( ) const#

Return value

dvec4 & normalize ( ) #

Return value

dvec4 & normalizeValid ( ) #

Return value

dvec4 & normalize3 ( ) #

Return value

dvec4 & normalizeValid3 ( ) #

Return value

const double * operator const double * ( ) const#

const void * operator const void * ( ) const#

double * operator double * ( ) #

void * operator void * ( ) #

dvec4 & operator*= ( double v ) #

Arguments

dvec4 ( const m128d& v0, const m128d& v1 ) #