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=encoding UTF-8
=head1 NAME
BH_Vec4f - four-dimensional real vector
=head1 SYNTAX
#include <BH/Math.h>
cc prog.c -o prog -lbh
=head1 DESCRIPTION
The BH_Vec4f module provides a set of functions for working with
four-dimensional vectors. The functions allow performing arithmetic operations,
normalization, calculating the dot product, and other mathematical operations
on vectors.
=head1 API CALLS
=head2 BH_Vec4fAdd
void BH_Vec4fAdd(const float a[4],
const float b[4],
float out[4]);
Calculates the sum of two vectors I<a> and I<b>.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fSub
void BH_Vec4fSub(const float a[4],
const float b[4],
float out[4]);
Calculates the difference between two vectors I<a> and I<b>.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fMul
void BH_Vec4fMul(const float a[4],
const float b[4],
float out[4]);
Calculates the result of multiplying two vectors I<a> and I<b>.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fScale
void BH_Vec4fScale(const float a[4],
float b,
float out[4]);
Calculates the result of multiplying vector I<a> by value I<b>.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fMulAdd
void BH_Vec4fMulAdd(const float a[4],
const float b[4],
const float c[4],
float out[4]);
Calculates the result of the sum I<c> and the result of multiplying vectors I<a>
and I<b>.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fNegate
void BH_Vec4fNegate(const float in[4],
float out[4]);
Calculates the opposite vector from vector I<in>.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fDot
float BH_Vec4fDot(const float a[4],
const float b[4]);
Calculates the dot product of vectors I<a> and I<b>.
=head2 BH_Vec4fLength
float BH_Vec4fLength(const float in[4]);
Calculates the length of vector I<in>.
=head2 BH_Vec4fNormal
void BH_Vec4fNormal(const float in[4],
float out[4]);
Calculates the normalized form of vector I<in>.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fNormalEx
float BH_Vec4fNormalEx(const float in[4],
float out[4]);
Calculates the normalized form of vector I<in> and returns its original length.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fMin
void BH_Vec4fMin(const float a[4],
const float b[4],
float out[4]);
Calculates the element-wise minimum of two vectors I<a> and I<b>.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fMax
void BH_Vec4fMax(const float a[4],
const float b[4],
float out[4]);
Calculates the element-wise maximum of two vectors I<a> and I<b>.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fLerp
void BH_Vec4fLerp(const float a[4],
const float b[4],
float t,
float out[4]);
Performs linear interpolation between two vectors I<a> and I<b> with parameter
I<t>.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fProject
void BH_Vec4fProject(const float a[4],
const float b[4],
float out[4]);
Calculates the result of projecting vector I<a> onto vector I<b>.
The I<out> parameter describes the resulting vector.
=head2 BH_Vec4fBarycentric
void BH_Vec4fBarycentric(const float a[4],
const float b[4],
const float c[4],
float v,
float w,
float out[4]);
Calculates the vector from barycentric coordinates I<v>, I<w> and vectors of
points I<a>, I<b>, I<c>.
The calculation is performed using the formula A + v*(B-A) + w*(C-A).
The I<out> parameter describes the resulting vector.
=head1 SEE ALSO
L<BH>
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