2430 lines
71 KiB
C++
2430 lines
71 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt
|
|
// This file is part of the "Irrlicht Engine".
|
|
// For conditions of distribution and use, see copyright notice in irrlicht.h
|
|
|
|
#ifndef __IRR_MATRIX_H_INCLUDED__
|
|
#define __IRR_MATRIX_H_INCLUDED__
|
|
|
|
#include "irrMath.h"
|
|
#include "vector3d.h"
|
|
#include "vector2d.h"
|
|
#include "plane3d.h"
|
|
#include "aabbox3d.h"
|
|
#include "rect.h"
|
|
#include "irrString.h"
|
|
#if defined(WIN32) && (defined(__x86_64__) || defined(_M_X64) || defined(__i386) || defined(_M_IX86))
|
|
#include <intrin.h>
|
|
#endif
|
|
|
|
// enable this to keep track of changes to the matrix
|
|
// and make simpler identity check for seldomly changing matrices
|
|
// otherwise identity check will always compare the elements
|
|
//#define USE_MATRIX_TEST
|
|
|
|
// this is only for debugging purposes
|
|
//#define USE_MATRIX_TEST_DEBUG
|
|
|
|
#if defined( USE_MATRIX_TEST_DEBUG )
|
|
|
|
struct MatrixTest
|
|
{
|
|
MatrixTest () : ID(0), Calls(0) {}
|
|
char buf[256];
|
|
int Calls;
|
|
int ID;
|
|
};
|
|
static MatrixTest MTest;
|
|
|
|
#endif
|
|
|
|
namespace irr
|
|
{
|
|
namespace core
|
|
{
|
|
|
|
//! 4x4 matrix. Mostly used as transformation matrix for 3d calculations.
|
|
/** The matrix is a D3D style matrix, row major with translations in the 4th row. */
|
|
template <class T>
|
|
class CMatrix4
|
|
{
|
|
private:
|
|
float M_raw[24];
|
|
public:
|
|
|
|
//! Constructor Flags
|
|
enum eConstructor
|
|
{
|
|
EM4CONST_NOTHING = 0,
|
|
EM4CONST_COPY,
|
|
EM4CONST_IDENTITY,
|
|
EM4CONST_TRANSPOSED,
|
|
EM4CONST_INVERSE,
|
|
EM4CONST_INVERSE_TRANSPOSED
|
|
};
|
|
|
|
//! Default constructor
|
|
/** \param constructor Choose the initialization style */
|
|
CMatrix4( eConstructor constructor = EM4CONST_IDENTITY );
|
|
//! Copy constructor
|
|
/** \param other Other matrix to copy from
|
|
\param constructor Choose the initialization style */
|
|
CMatrix4(const CMatrix4<T>& other, eConstructor constructor = EM4CONST_COPY);
|
|
|
|
//! Simple operator for directly accessing every element of the matrix.
|
|
T& operator()(const s32 row, const s32 col)
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return M[ row * 4 + col ];
|
|
}
|
|
|
|
//! Simple operator for directly accessing every element of the matrix.
|
|
const T& operator()(const s32 row, const s32 col) const { return M[row * 4 + col]; }
|
|
|
|
//! Simple operator for linearly accessing every element of the matrix.
|
|
T& operator[](u32 index)
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return M[index];
|
|
}
|
|
|
|
//! Simple operator for linearly accessing every element of the matrix.
|
|
const T& operator[](u32 index) const { return M[index]; }
|
|
|
|
//! Sets this matrix equal to the other matrix.
|
|
inline CMatrix4<T>& operator=(const CMatrix4<T> &other);
|
|
|
|
//! Sets all elements of this matrix to the value.
|
|
inline CMatrix4<T>& operator=(const T& scalar);
|
|
|
|
//! Returns pointer to internal array
|
|
const T* pointer() const { return M; }
|
|
T* pointer()
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return M;
|
|
}
|
|
|
|
//! Returns true if other matrix is equal to this matrix.
|
|
bool operator==(const CMatrix4<T> &other) const;
|
|
|
|
//! Returns true if other matrix is not equal to this matrix.
|
|
bool operator!=(const CMatrix4<T> &other) const;
|
|
|
|
//! Add another matrix.
|
|
CMatrix4<T> operator+(const CMatrix4<T>& other) const;
|
|
|
|
//! Add another matrix.
|
|
CMatrix4<T>& operator+=(const CMatrix4<T>& other);
|
|
|
|
//! Subtract another matrix.
|
|
CMatrix4<T> operator-(const CMatrix4<T>& other) const;
|
|
|
|
//! Subtract another matrix.
|
|
CMatrix4<T>& operator-=(const CMatrix4<T>& other);
|
|
|
|
//! set this matrix to the product of two matrices
|
|
/** Calculate b*a */
|
|
inline CMatrix4<T>& setbyproduct(const CMatrix4<T>& other_a,const CMatrix4<T>& other_b );
|
|
|
|
//! Set this matrix to the product of two matrices
|
|
/** Calculate b*a, no optimization used,
|
|
use it if you know you never have a identity matrix */
|
|
CMatrix4<T>& setbyproduct_nocheck(const CMatrix4<T>& other_a,const CMatrix4<T>& other_b );
|
|
|
|
//! Multiply by another matrix.
|
|
/** Calculate other*this */
|
|
CMatrix4<T> operator*(const CMatrix4<T>& other) const;
|
|
|
|
//! Multiply by another matrix.
|
|
/** Calculate and return other*this */
|
|
CMatrix4<T>& operator*=(const CMatrix4<T>& other);
|
|
|
|
//! Multiply by scalar.
|
|
CMatrix4<T> operator*(const T& scalar) const;
|
|
|
|
//! Multiply by scalar.
|
|
CMatrix4<T>& operator*=(const T& scalar);
|
|
|
|
//! Set matrix to identity.
|
|
inline CMatrix4<T>& makeIdentity();
|
|
|
|
//! Returns true if the matrix is the identity matrix
|
|
inline bool isIdentity() const;
|
|
|
|
//! Returns true if the matrix is orthogonal
|
|
inline bool isOrthogonal() const;
|
|
|
|
//! Returns true if the matrix is the identity matrix
|
|
bool isIdentity_integer_base () const;
|
|
|
|
//! Set the translation of the current matrix. Will erase any previous values.
|
|
CMatrix4<T>& setTranslation( const vector3d<T>& translation );
|
|
|
|
//! Gets the current translation
|
|
vector3d<T> getTranslation() const;
|
|
|
|
//! Set the inverse translation of the current matrix. Will erase any previous values.
|
|
CMatrix4<T>& setInverseTranslation( const vector3d<T>& translation );
|
|
|
|
//! Make a rotation matrix from Euler angles. The 4th row and column are unmodified.
|
|
inline CMatrix4<T>& setRotationRadians( const vector3d<T>& rotation );
|
|
|
|
//! Make a rotation matrix from Euler angles. The 4th row and column are unmodified.
|
|
CMatrix4<T>& setRotationDegrees( const vector3d<T>& rotation );
|
|
|
|
//! Returns the rotation, as set by setRotation().
|
|
/** This code was orginally written by by Chev. */
|
|
core::vector3d<T> getRotationDegrees() const;
|
|
|
|
//! Make an inverted rotation matrix from Euler angles.
|
|
/** The 4th row and column are unmodified. */
|
|
inline CMatrix4<T>& setInverseRotationRadians( const vector3d<T>& rotation );
|
|
|
|
//! Make an inverted rotation matrix from Euler angles.
|
|
/** The 4th row and column are unmodified. */
|
|
inline CMatrix4<T>& setInverseRotationDegrees( const vector3d<T>& rotation );
|
|
|
|
//! Make a rotation matrix from angle and axis, assuming left handed rotation.
|
|
/** The 4th row and column are unmodified. */
|
|
inline CMatrix4<T>& setRotationAxisRadians(const T& angle, const vector3d<T>& axis);
|
|
|
|
//! Set Scale
|
|
CMatrix4<T>& setScale( const vector3d<T>& scale );
|
|
|
|
//! Set Scale
|
|
CMatrix4<T>& setScale( const T scale ) { return setScale(core::vector3d<T>(scale,scale,scale)); }
|
|
|
|
//! Get Scale
|
|
core::vector3d<T> getScale() const;
|
|
|
|
//! Translate a vector by the inverse of the translation part of this matrix.
|
|
void inverseTranslateVect( vector3df& vect ) const;
|
|
|
|
//! Rotate a vector by the inverse of the rotation part of this matrix.
|
|
void inverseRotateVect( vector3df& vect ) const;
|
|
|
|
//! Rotate a vector by the rotation part of this matrix.
|
|
void rotateVect( vector3df& vect ) const;
|
|
|
|
//! An alternate transform vector method, writing into a second vector
|
|
void rotateVect(core::vector3df& out, const core::vector3df& in) const;
|
|
|
|
//! An alternate transform vector method, writing into an array of 3 floats
|
|
void rotateVect(T *out,const core::vector3df &in) const;
|
|
|
|
//! Transforms the vector by this matrix
|
|
void transformVect( vector3df& vect) const;
|
|
|
|
//! Transforms input vector by this matrix and stores result in output vector
|
|
void transformVect( vector3df& out, const vector3df& in ) const;
|
|
|
|
//! An alternate transform vector method, writing into an array of 4 floats
|
|
void transformVect(T *out,const core::vector3df &in) const;
|
|
|
|
//! An alternate transform vector method, reading from and writing to an array of 3 floats
|
|
void transformVec3(T *out, const T * in) const;
|
|
|
|
//! Translate a vector by the translation part of this matrix.
|
|
void translateVect( vector3df& vect ) const;
|
|
|
|
//! Transforms a plane by this matrix
|
|
void transformPlane( core::plane3d<f32> &plane) const;
|
|
|
|
//! Transforms a plane by this matrix
|
|
void transformPlane( const core::plane3d<f32> &in, core::plane3d<f32> &out) const;
|
|
|
|
//! Transforms a axis aligned bounding box
|
|
/** The result box of this operation may not be accurate at all. For
|
|
correct results, use transformBoxEx() */
|
|
void transformBox(core::aabbox3d<f32>& box) const;
|
|
|
|
//! Transforms a axis aligned bounding box
|
|
/** The result box of this operation should by accurate, but this operation
|
|
is slower than transformBox(). */
|
|
void transformBoxEx(core::aabbox3d<f32>& box) const;
|
|
|
|
//! Multiplies this matrix by a 1x4 matrix
|
|
void multiplyWith1x4Matrix(T* matrix) const;
|
|
|
|
//! Calculates inverse of matrix. Slow.
|
|
/** \return Returns false if there is no inverse matrix.*/
|
|
bool makeInverse();
|
|
|
|
|
|
//! Inverts a primitive matrix which only contains a translation and a rotation
|
|
/** \param out: where result matrix is written to. */
|
|
bool getInversePrimitive ( CMatrix4<T>& out ) const;
|
|
|
|
//! Gets the inversed matrix of this one
|
|
/** \param out: where result matrix is written to.
|
|
\return Returns false if there is no inverse matrix. */
|
|
bool getInverse(CMatrix4<T>& out) const;
|
|
|
|
//! Builds a right-handed perspective projection matrix based on a field of view
|
|
CMatrix4<T>& buildProjectionMatrixPerspectiveFovRH(f32 fieldOfViewRadians, f32 aspectRatio, f32 zNear, f32 zFar);
|
|
|
|
//! Builds a left-handed perspective projection matrix based on a field of view
|
|
CMatrix4<T>& buildProjectionMatrixPerspectiveFovLH(f32 fieldOfViewRadians, f32 aspectRatio, f32 zNear, f32 zFar);
|
|
|
|
//! Builds a left-handed perspective projection matrix based on a field of view, with far plane at infinity
|
|
CMatrix4<T>& buildProjectionMatrixPerspectiveFovInfinityLH(f32 fieldOfViewRadians, f32 aspectRatio, f32 zNear, f32 epsilon=0);
|
|
|
|
//! Builds a right-handed perspective projection matrix.
|
|
CMatrix4<T>& buildProjectionMatrixPerspectiveRH(f32 widthOfViewVolume, f32 heightOfViewVolume, f32 zNear, f32 zFar);
|
|
|
|
//! Builds a left-handed perspective projection matrix.
|
|
CMatrix4<T>& buildProjectionMatrixPerspectiveLH(f32 widthOfViewVolume, f32 heightOfViewVolume, f32 zNear, f32 zFar);
|
|
|
|
//! Builds a left-handed orthogonal projection matrix.
|
|
CMatrix4<T>& buildProjectionMatrixOrthoLH(f32 widthOfViewVolume, f32 heightOfViewVolume, f32 zNear, f32 zFar);
|
|
|
|
//! Builds a left-handed orthogonal projection matrix, with specific corners.
|
|
CMatrix4<T>& buildProjectionMatrixOrthoLH(f32 left, f32 right, f32 up, f32 down, f32 zNear, f32 zFar);
|
|
|
|
//! Builds a right-handed orthogonal projection matrix.
|
|
CMatrix4<T>& buildProjectionMatrixOrthoRH(f32 widthOfViewVolume, f32 heightOfViewVolume, f32 zNear, f32 zFar);
|
|
|
|
//! Builds a left-handed look-at matrix.
|
|
CMatrix4<T>& buildCameraLookAtMatrixLH(
|
|
const vector3df& position,
|
|
const vector3df& target,
|
|
const vector3df& upVector);
|
|
|
|
//! Builds a right-handed look-at matrix.
|
|
CMatrix4<T>& buildCameraLookAtMatrixRH(
|
|
const vector3df& position,
|
|
const vector3df& target,
|
|
const vector3df& upVector);
|
|
|
|
//! Builds a matrix that flattens geometry into a plane.
|
|
/** \param light: light source
|
|
\param plane: plane into which the geometry if flattened into
|
|
\param point: value between 0 and 1, describing the light source.
|
|
If this is 1, it is a point light, if it is 0, it is a directional light. */
|
|
CMatrix4<T>& buildShadowMatrix(const core::vector3df& light, core::plane3df plane, f32 point=1.0f);
|
|
|
|
//! Builds a matrix which transforms a normalized Device Coordinate to Device Coordinates.
|
|
/** Used to scale <-1,-1><1,1> to viewport, for example from <-1,-1> <1,1> to the viewport <0,0><0,640> */
|
|
CMatrix4<T>& buildNDCToDCMatrix( const core::rect<s32>& area, f32 zScale);
|
|
|
|
//! Creates a new matrix as interpolated matrix from two other ones.
|
|
/** \param b: other matrix to interpolate with
|
|
\param time: Must be a value between 0 and 1. */
|
|
CMatrix4<T> interpolate(const core::CMatrix4<T>& b, f32 time) const;
|
|
|
|
//! Gets transposed matrix
|
|
CMatrix4<T> getTransposed() const;
|
|
|
|
//! Gets transposed matrix
|
|
inline void getTransposed( CMatrix4<T>& dest ) const;
|
|
|
|
//! Builds a matrix that rotates from one vector to another
|
|
/** \param from: vector to rotate from
|
|
\param to: vector to rotate to
|
|
*/
|
|
CMatrix4<T>& buildRotateFromTo(const core::vector3df& from, const core::vector3df& to);
|
|
|
|
//! Builds a combined matrix which translates to a center before rotation and translates from origin afterwards
|
|
/** \param center Position to rotate around
|
|
\param translate Translation applied after the rotation
|
|
*/
|
|
void setRotationCenter(const core::vector3df& center, const core::vector3df& translate);
|
|
|
|
//! Builds a matrix which rotates a source vector to a look vector over an arbitrary axis
|
|
/** \param camPos: viewer position in world coo
|
|
\param center: object position in world-coo and rotation pivot
|
|
\param translation: object final translation from center
|
|
\param axis: axis to rotate about
|
|
\param from: source vector to rotate from
|
|
*/
|
|
void buildAxisAlignedBillboard(const core::vector3df& camPos,
|
|
const core::vector3df& center,
|
|
const core::vector3df& translation,
|
|
const core::vector3df& axis,
|
|
const core::vector3df& from);
|
|
|
|
/*
|
|
construct 2D Texture transformations
|
|
rotate about center, scale, and transform.
|
|
*/
|
|
//! Set to a texture transformation matrix with the given parameters.
|
|
CMatrix4<T>& buildTextureTransform( f32 rotateRad,
|
|
const core::vector2df &rotatecenter,
|
|
const core::vector2df &translate,
|
|
const core::vector2df &scale);
|
|
|
|
//! Set texture transformation rotation
|
|
/** Rotate about z axis, recenter at (0.5,0.5).
|
|
Doesn't clear other elements than those affected
|
|
\param radAngle Angle in radians
|
|
\return Altered matrix */
|
|
CMatrix4<T>& setTextureRotationCenter( f32 radAngle );
|
|
|
|
//! Set texture transformation translation
|
|
/** Doesn't clear other elements than those affected.
|
|
\param x Offset on x axis
|
|
\param y Offset on y axis
|
|
\return Altered matrix */
|
|
CMatrix4<T>& setTextureTranslate( f32 x, f32 y );
|
|
|
|
//! Set texture transformation translation, using a transposed representation
|
|
/** Doesn't clear other elements than those affected.
|
|
\param x Offset on x axis
|
|
\param y Offset on y axis
|
|
\return Altered matrix */
|
|
CMatrix4<T>& setTextureTranslateTransposed( f32 x, f32 y );
|
|
|
|
//! Set texture transformation scale
|
|
/** Doesn't clear other elements than those affected.
|
|
\param sx Scale factor on x axis
|
|
\param sy Scale factor on y axis
|
|
\return Altered matrix. */
|
|
CMatrix4<T>& setTextureScale( f32 sx, f32 sy );
|
|
|
|
//! Set texture transformation scale, and recenter at (0.5,0.5)
|
|
/** Doesn't clear other elements than those affected.
|
|
\param sx Scale factor on x axis
|
|
\param sy Scale factor on y axis
|
|
\return Altered matrix. */
|
|
CMatrix4<T>& setTextureScaleCenter( f32 sx, f32 sy );
|
|
|
|
//! Sets all matrix data members at once
|
|
CMatrix4<T>& setM(const T* data);
|
|
|
|
//! Sets if the matrix is definitely identity matrix
|
|
void setDefinitelyIdentityMatrix( bool isDefinitelyIdentityMatrix);
|
|
|
|
//! Gets if the matrix is definitely identity matrix
|
|
bool getDefinitelyIdentityMatrix() const;
|
|
|
|
//! Compare two matrices using the equal method
|
|
bool equals(const core::CMatrix4<T>& other, const T tolerance=(T)ROUNDING_ERROR_f64) const;
|
|
|
|
private:
|
|
//! Matrix data, stored in row-major order
|
|
T* M = (T*)((uintptr_t)&M_raw[4] & ~0xF);
|
|
#if defined ( USE_MATRIX_TEST )
|
|
//! Flag is this matrix is identity matrix
|
|
mutable u32 definitelyIdentityMatrix;
|
|
#endif
|
|
#if defined ( USE_MATRIX_TEST_DEBUG )
|
|
u32 id;
|
|
mutable u32 calls;
|
|
#endif
|
|
|
|
};
|
|
|
|
// Default constructor
|
|
template <class T>
|
|
inline CMatrix4<T>::CMatrix4( eConstructor constructor )
|
|
#if defined ( USE_MATRIX_TEST )
|
|
: definitelyIdentityMatrix(BIT_UNTESTED)
|
|
#endif
|
|
#if defined ( USE_MATRIX_TEST_DEBUG )
|
|
,id ( MTest.ID++), calls ( 0 )
|
|
#endif
|
|
{
|
|
switch ( constructor )
|
|
{
|
|
case EM4CONST_NOTHING:
|
|
case EM4CONST_COPY:
|
|
break;
|
|
case EM4CONST_IDENTITY:
|
|
case EM4CONST_INVERSE:
|
|
default:
|
|
makeIdentity();
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Copy constructor
|
|
template <class T>
|
|
inline CMatrix4<T>::CMatrix4( const CMatrix4<T>& other, eConstructor constructor)
|
|
#if defined ( USE_MATRIX_TEST )
|
|
: definitelyIdentityMatrix(BIT_UNTESTED)
|
|
#endif
|
|
#if defined ( USE_MATRIX_TEST_DEBUG )
|
|
,id ( MTest.ID++), calls ( 0 )
|
|
#endif
|
|
{
|
|
switch ( constructor )
|
|
{
|
|
case EM4CONST_IDENTITY:
|
|
makeIdentity();
|
|
break;
|
|
case EM4CONST_NOTHING:
|
|
break;
|
|
case EM4CONST_COPY:
|
|
*this = other;
|
|
break;
|
|
case EM4CONST_TRANSPOSED:
|
|
other.getTransposed(*this);
|
|
break;
|
|
case EM4CONST_INVERSE:
|
|
if (!other.getInverse(*this))
|
|
memset(M, 0, 16*sizeof(T));
|
|
break;
|
|
case EM4CONST_INVERSE_TRANSPOSED:
|
|
if (!other.getInverse(*this))
|
|
memset(M, 0, 16*sizeof(T));
|
|
else
|
|
*this=getTransposed();
|
|
break;
|
|
}
|
|
}
|
|
|
|
//! Add another matrix.
|
|
template <class T>
|
|
inline CMatrix4<T> CMatrix4<T>::operator+(const CMatrix4<T>& other) const
|
|
{
|
|
CMatrix4<T> temp ( EM4CONST_NOTHING );
|
|
|
|
temp[0] = M[0]+other[0];
|
|
temp[1] = M[1]+other[1];
|
|
temp[2] = M[2]+other[2];
|
|
temp[3] = M[3]+other[3];
|
|
temp[4] = M[4]+other[4];
|
|
temp[5] = M[5]+other[5];
|
|
temp[6] = M[6]+other[6];
|
|
temp[7] = M[7]+other[7];
|
|
temp[8] = M[8]+other[8];
|
|
temp[9] = M[9]+other[9];
|
|
temp[10] = M[10]+other[10];
|
|
temp[11] = M[11]+other[11];
|
|
temp[12] = M[12]+other[12];
|
|
temp[13] = M[13]+other[13];
|
|
temp[14] = M[14]+other[14];
|
|
temp[15] = M[15]+other[15];
|
|
|
|
return temp;
|
|
}
|
|
|
|
//! Add another matrix.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::operator+=(const CMatrix4<T>& other)
|
|
{
|
|
M[0]+=other[0];
|
|
M[1]+=other[1];
|
|
M[2]+=other[2];
|
|
M[3]+=other[3];
|
|
M[4]+=other[4];
|
|
M[5]+=other[5];
|
|
M[6]+=other[6];
|
|
M[7]+=other[7];
|
|
M[8]+=other[8];
|
|
M[9]+=other[9];
|
|
M[10]+=other[10];
|
|
M[11]+=other[11];
|
|
M[12]+=other[12];
|
|
M[13]+=other[13];
|
|
M[14]+=other[14];
|
|
M[15]+=other[15];
|
|
|
|
return *this;
|
|
}
|
|
|
|
//! Subtract another matrix.
|
|
template <class T>
|
|
inline CMatrix4<T> CMatrix4<T>::operator-(const CMatrix4<T>& other) const
|
|
{
|
|
CMatrix4<T> temp ( EM4CONST_NOTHING );
|
|
|
|
temp[0] = M[0]-other[0];
|
|
temp[1] = M[1]-other[1];
|
|
temp[2] = M[2]-other[2];
|
|
temp[3] = M[3]-other[3];
|
|
temp[4] = M[4]-other[4];
|
|
temp[5] = M[5]-other[5];
|
|
temp[6] = M[6]-other[6];
|
|
temp[7] = M[7]-other[7];
|
|
temp[8] = M[8]-other[8];
|
|
temp[9] = M[9]-other[9];
|
|
temp[10] = M[10]-other[10];
|
|
temp[11] = M[11]-other[11];
|
|
temp[12] = M[12]-other[12];
|
|
temp[13] = M[13]-other[13];
|
|
temp[14] = M[14]-other[14];
|
|
temp[15] = M[15]-other[15];
|
|
|
|
return temp;
|
|
}
|
|
|
|
//! Subtract another matrix.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::operator-=(const CMatrix4<T>& other)
|
|
{
|
|
M[0]-=other[0];
|
|
M[1]-=other[1];
|
|
M[2]-=other[2];
|
|
M[3]-=other[3];
|
|
M[4]-=other[4];
|
|
M[5]-=other[5];
|
|
M[6]-=other[6];
|
|
M[7]-=other[7];
|
|
M[8]-=other[8];
|
|
M[9]-=other[9];
|
|
M[10]-=other[10];
|
|
M[11]-=other[11];
|
|
M[12]-=other[12];
|
|
M[13]-=other[13];
|
|
M[14]-=other[14];
|
|
M[15]-=other[15];
|
|
|
|
return *this;
|
|
}
|
|
|
|
//! Multiply by scalar.
|
|
template <class T>
|
|
inline CMatrix4<T> CMatrix4<T>::operator*(const T& scalar) const
|
|
{
|
|
CMatrix4<T> temp ( EM4CONST_NOTHING );
|
|
|
|
temp[0] = M[0]*scalar;
|
|
temp[1] = M[1]*scalar;
|
|
temp[2] = M[2]*scalar;
|
|
temp[3] = M[3]*scalar;
|
|
temp[4] = M[4]*scalar;
|
|
temp[5] = M[5]*scalar;
|
|
temp[6] = M[6]*scalar;
|
|
temp[7] = M[7]*scalar;
|
|
temp[8] = M[8]*scalar;
|
|
temp[9] = M[9]*scalar;
|
|
temp[10] = M[10]*scalar;
|
|
temp[11] = M[11]*scalar;
|
|
temp[12] = M[12]*scalar;
|
|
temp[13] = M[13]*scalar;
|
|
temp[14] = M[14]*scalar;
|
|
temp[15] = M[15]*scalar;
|
|
|
|
return temp;
|
|
}
|
|
|
|
//! Multiply by scalar.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::operator*=(const T& scalar)
|
|
{
|
|
M[0]*=scalar;
|
|
M[1]*=scalar;
|
|
M[2]*=scalar;
|
|
M[3]*=scalar;
|
|
M[4]*=scalar;
|
|
M[5]*=scalar;
|
|
M[6]*=scalar;
|
|
M[7]*=scalar;
|
|
M[8]*=scalar;
|
|
M[9]*=scalar;
|
|
M[10]*=scalar;
|
|
M[11]*=scalar;
|
|
M[12]*=scalar;
|
|
M[13]*=scalar;
|
|
M[14]*=scalar;
|
|
M[15]*=scalar;
|
|
|
|
return *this;
|
|
}
|
|
|
|
//! Multiply by another matrix.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::operator*=(const CMatrix4<T>& other)
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
// do checks on your own in order to avoid copy creation
|
|
if ( !other.isIdentity() )
|
|
{
|
|
if ( this->isIdentity() )
|
|
{
|
|
return (*this = other);
|
|
}
|
|
else
|
|
{
|
|
CMatrix4<T> temp ( *this );
|
|
return setbyproduct_nocheck( temp, other );
|
|
}
|
|
}
|
|
return *this;
|
|
#else
|
|
CMatrix4<T> temp ( *this );
|
|
return setbyproduct_nocheck( temp, other );
|
|
#endif
|
|
}
|
|
|
|
//! multiply by another matrix
|
|
// set this matrix to the product of two other matrices
|
|
// goal is to reduce stack use and copy
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setbyproduct_nocheck(const CMatrix4<T>& other_a,const CMatrix4<T>& other_b )
|
|
{
|
|
const T *m1 = other_a.M;
|
|
const T *m2 = other_b.M;
|
|
|
|
#if defined(WIN32) && (defined(__x86_64__) || defined(_M_X64) || defined(__i386) || defined(_M_IX86))
|
|
// From http://drrobsjournal.blogspot.fr/2012/10/fast-simd-4x4-matrix-multiplication.html
|
|
// Use unaligned load/store
|
|
|
|
const float *matA = other_a.pointer();
|
|
|
|
const __m128 a = _mm_load_ps(matA); // First row
|
|
const __m128 b = _mm_load_ps(&matA[4]); // Second row
|
|
const __m128 c = _mm_load_ps(&matA[8]); // Third row
|
|
const __m128 d = _mm_load_ps(&matA[12]); // Fourth row
|
|
|
|
__m128 t1 = _mm_set1_ps(m2[0]);
|
|
__m128 t2 = _mm_mul_ps(a, t1);
|
|
t1 = _mm_set1_ps(m2[1]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(b, t1), t2);
|
|
t1 = _mm_set1_ps(m2[2]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(c, t1), t2);
|
|
t1 = _mm_set1_ps(m2[3]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(d, t1), t2);
|
|
_mm_store_ps(&M[0], t2);
|
|
|
|
t1 = _mm_set1_ps(m2[4]);
|
|
t2 = _mm_mul_ps(a, t1);
|
|
t1 = _mm_set1_ps(m2[5]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(b, t1), t2);
|
|
t1 = _mm_set1_ps(m2[6]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(c, t1), t2);
|
|
t1 = _mm_set1_ps(m2[7]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(d, t1), t2);
|
|
_mm_store_ps(&M[4], t2);
|
|
|
|
t1 = _mm_set1_ps(m2[8]);
|
|
t2 = _mm_mul_ps(a, t1);
|
|
t1 = _mm_set1_ps(m2[9]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(b, t1), t2);
|
|
t1 = _mm_set1_ps(m2[10]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(c, t1), t2);
|
|
t1 = _mm_set1_ps(m2[11]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(d, t1), t2);
|
|
_mm_store_ps(&M[8], t2);
|
|
|
|
t1 = _mm_set1_ps(m2[12]);
|
|
t2 = _mm_mul_ps(a, t1);
|
|
t1 = _mm_set1_ps(m2[13]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(b, t1), t2);
|
|
t1 = _mm_set1_ps(m2[14]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(c, t1), t2);
|
|
t1 = _mm_set1_ps(m2[15]);
|
|
t2 = _mm_add_ps(_mm_mul_ps(d, t1), t2);
|
|
_mm_store_ps(&M[12], t2);
|
|
#else
|
|
|
|
M[0] = m1[0]*m2[0] + m1[4]*m2[1] + m1[8]*m2[2] + m1[12]*m2[3];
|
|
M[1] = m1[1]*m2[0] + m1[5]*m2[1] + m1[9]*m2[2] + m1[13]*m2[3];
|
|
M[2] = m1[2]*m2[0] + m1[6]*m2[1] + m1[10]*m2[2] + m1[14]*m2[3];
|
|
M[3] = m1[3]*m2[0] + m1[7]*m2[1] + m1[11]*m2[2] + m1[15]*m2[3];
|
|
|
|
M[4] = m1[0]*m2[4] + m1[4]*m2[5] + m1[8]*m2[6] + m1[12]*m2[7];
|
|
M[5] = m1[1]*m2[4] + m1[5]*m2[5] + m1[9]*m2[6] + m1[13]*m2[7];
|
|
M[6] = m1[2]*m2[4] + m1[6]*m2[5] + m1[10]*m2[6] + m1[14]*m2[7];
|
|
M[7] = m1[3]*m2[4] + m1[7]*m2[5] + m1[11]*m2[6] + m1[15]*m2[7];
|
|
|
|
M[8] = m1[0]*m2[8] + m1[4]*m2[9] + m1[8]*m2[10] + m1[12]*m2[11];
|
|
M[9] = m1[1]*m2[8] + m1[5]*m2[9] + m1[9]*m2[10] + m1[13]*m2[11];
|
|
M[10] = m1[2]*m2[8] + m1[6]*m2[9] + m1[10]*m2[10] + m1[14]*m2[11];
|
|
M[11] = m1[3]*m2[8] + m1[7]*m2[9] + m1[11]*m2[10] + m1[15]*m2[11];
|
|
|
|
M[12] = m1[0]*m2[12] + m1[4]*m2[13] + m1[8]*m2[14] + m1[12]*m2[15];
|
|
M[13] = m1[1]*m2[12] + m1[5]*m2[13] + m1[9]*m2[14] + m1[13]*m2[15];
|
|
M[14] = m1[2]*m2[12] + m1[6]*m2[13] + m1[10]*m2[14] + m1[14]*m2[15];
|
|
M[15] = m1[3]*m2[12] + m1[7]*m2[13] + m1[11]*m2[14] + m1[15]*m2[15];
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
//! multiply by another matrix
|
|
// set this matrix to the product of two other matrices
|
|
// goal is to reduce stack use and copy
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setbyproduct(const CMatrix4<T>& other_a, const CMatrix4<T>& other_b )
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
if ( other_a.isIdentity () )
|
|
return (*this = other_b);
|
|
else
|
|
if ( other_b.isIdentity () )
|
|
return (*this = other_a);
|
|
else
|
|
return setbyproduct_nocheck(other_a,other_b);
|
|
#else
|
|
return setbyproduct_nocheck(other_a,other_b);
|
|
#endif
|
|
}
|
|
|
|
//! multiply by another matrix
|
|
template <class T>
|
|
inline CMatrix4<T> CMatrix4<T>::operator*(const CMatrix4<T>& m2) const
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
// Testing purpose..
|
|
if ( this->isIdentity() )
|
|
return m2;
|
|
if ( m2.isIdentity() )
|
|
return *this;
|
|
#endif
|
|
|
|
CMatrix4<T> m3 ( EM4CONST_NOTHING );
|
|
|
|
const T *m1 = M;
|
|
|
|
m3[0] = m1[0]*m2[0] + m1[4]*m2[1] + m1[8]*m2[2] + m1[12]*m2[3];
|
|
m3[1] = m1[1]*m2[0] + m1[5]*m2[1] + m1[9]*m2[2] + m1[13]*m2[3];
|
|
m3[2] = m1[2]*m2[0] + m1[6]*m2[1] + m1[10]*m2[2] + m1[14]*m2[3];
|
|
m3[3] = m1[3]*m2[0] + m1[7]*m2[1] + m1[11]*m2[2] + m1[15]*m2[3];
|
|
|
|
m3[4] = m1[0]*m2[4] + m1[4]*m2[5] + m1[8]*m2[6] + m1[12]*m2[7];
|
|
m3[5] = m1[1]*m2[4] + m1[5]*m2[5] + m1[9]*m2[6] + m1[13]*m2[7];
|
|
m3[6] = m1[2]*m2[4] + m1[6]*m2[5] + m1[10]*m2[6] + m1[14]*m2[7];
|
|
m3[7] = m1[3]*m2[4] + m1[7]*m2[5] + m1[11]*m2[6] + m1[15]*m2[7];
|
|
|
|
m3[8] = m1[0]*m2[8] + m1[4]*m2[9] + m1[8]*m2[10] + m1[12]*m2[11];
|
|
m3[9] = m1[1]*m2[8] + m1[5]*m2[9] + m1[9]*m2[10] + m1[13]*m2[11];
|
|
m3[10] = m1[2]*m2[8] + m1[6]*m2[9] + m1[10]*m2[10] + m1[14]*m2[11];
|
|
m3[11] = m1[3]*m2[8] + m1[7]*m2[9] + m1[11]*m2[10] + m1[15]*m2[11];
|
|
|
|
m3[12] = m1[0]*m2[12] + m1[4]*m2[13] + m1[8]*m2[14] + m1[12]*m2[15];
|
|
m3[13] = m1[1]*m2[12] + m1[5]*m2[13] + m1[9]*m2[14] + m1[13]*m2[15];
|
|
m3[14] = m1[2]*m2[12] + m1[6]*m2[13] + m1[10]*m2[14] + m1[14]*m2[15];
|
|
m3[15] = m1[3]*m2[12] + m1[7]*m2[13] + m1[11]*m2[14] + m1[15]*m2[15];
|
|
return m3;
|
|
}
|
|
|
|
|
|
|
|
template <class T>
|
|
inline vector3d<T> CMatrix4<T>::getTranslation() const
|
|
{
|
|
return vector3d<T>(M[12], M[13], M[14]);
|
|
}
|
|
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setTranslation( const vector3d<T>& translation )
|
|
{
|
|
M[12] = translation.X;
|
|
M[13] = translation.Y;
|
|
M[14] = translation.Z;
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setInverseTranslation( const vector3d<T>& translation )
|
|
{
|
|
M[12] = -translation.X;
|
|
M[13] = -translation.Y;
|
|
M[14] = -translation.Z;
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setScale( const vector3d<T>& scale )
|
|
{
|
|
M[0] = scale.X;
|
|
M[5] = scale.Y;
|
|
M[10] = scale.Z;
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
//! Returns the absolute values of the scales of the matrix.
|
|
/**
|
|
Note that this returns the absolute (positive) values unless only scale is set.
|
|
Unfortunately it does not appear to be possible to extract any original negative
|
|
values. The best that we could do would be to arbitrarily make one scale
|
|
negative if one or three of them were negative.
|
|
FIXME - return the original values.
|
|
*/
|
|
template <class T>
|
|
inline vector3d<T> CMatrix4<T>::getScale() const
|
|
{
|
|
// See http://www.robertblum.com/articles/2005/02/14/decomposing-matrices
|
|
|
|
// Deal with the 0 rotation case first
|
|
// Prior to Irrlicht 1.6, we always returned this value.
|
|
if(core::iszero(M[1]) && core::iszero(M[2]) &&
|
|
core::iszero(M[4]) && core::iszero(M[6]) &&
|
|
core::iszero(M[8]) && core::iszero(M[9]))
|
|
return vector3d<T>(M[0], M[5], M[10]);
|
|
|
|
// We have to do the full calculation.
|
|
return vector3d<T>(sqrtf(M[0] * M[0] + M[1] * M[1] + M[2] * M[2]),
|
|
sqrtf(M[4] * M[4] + M[5] * M[5] + M[6] * M[6]),
|
|
sqrtf(M[8] * M[8] + M[9] * M[9] + M[10] * M[10]));
|
|
}
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setRotationDegrees( const vector3d<T>& rotation )
|
|
{
|
|
return setRotationRadians( rotation * core::DEGTORAD );
|
|
}
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setInverseRotationDegrees( const vector3d<T>& rotation )
|
|
{
|
|
return setInverseRotationRadians( rotation * core::DEGTORAD );
|
|
}
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setRotationRadians( const vector3d<T>& rotation )
|
|
{
|
|
const f64 cr = cos( rotation.X );
|
|
const f64 sr = sin( rotation.X );
|
|
const f64 cp = cos( rotation.Y );
|
|
const f64 sp = sin( rotation.Y );
|
|
const f64 cy = cos( rotation.Z );
|
|
const f64 sy = sin( rotation.Z );
|
|
|
|
M[0] = (T)( cp*cy );
|
|
M[1] = (T)( cp*sy );
|
|
M[2] = (T)( -sp );
|
|
|
|
const f64 srsp = sr*sp;
|
|
const f64 crsp = cr*sp;
|
|
|
|
M[4] = (T)( srsp*cy-cr*sy );
|
|
M[5] = (T)( srsp*sy+cr*cy );
|
|
M[6] = (T)( sr*cp );
|
|
|
|
M[8] = (T)( crsp*cy+sr*sy );
|
|
M[9] = (T)( crsp*sy-sr*cy );
|
|
M[10] = (T)( cr*cp );
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
//! Returns a rotation that is equivalent to that set by setRotationDegrees().
|
|
/** This code was sent in by Chev. Note that it does not necessarily return
|
|
the *same* Euler angles as those set by setRotationDegrees(), but the rotation will
|
|
be equivalent, i.e. will have the same result when used to rotate a vector or node. */
|
|
template <class T>
|
|
inline core::vector3d<T> CMatrix4<T>::getRotationDegrees() const
|
|
{
|
|
const CMatrix4<T> &mat = *this;
|
|
core::vector3d<T> scale = getScale();
|
|
// we need to check for negative scale on to axes, which would bring up wrong results
|
|
if (scale.Y<0 && scale.Z<0)
|
|
{
|
|
scale.Y =-scale.Y;
|
|
scale.Z =-scale.Z;
|
|
}
|
|
else if (scale.X<0 && scale.Z<0)
|
|
{
|
|
scale.X =-scale.X;
|
|
scale.Z =-scale.Z;
|
|
}
|
|
else if (scale.X<0 && scale.Y<0)
|
|
{
|
|
scale.X =-scale.X;
|
|
scale.Y =-scale.Y;
|
|
}
|
|
const core::vector3d<f64> invScale(core::reciprocal(scale.X),core::reciprocal(scale.Y),core::reciprocal(scale.Z));
|
|
|
|
f64 Y = -asin(core::clamp(mat[2]*invScale.X, -1.0, 1.0));
|
|
const f64 C = cos(Y);
|
|
Y *= RADTODEG64;
|
|
|
|
f64 rotx, roty, X, Z;
|
|
|
|
if (!core::iszero(C))
|
|
{
|
|
const f64 invC = core::reciprocal(C);
|
|
rotx = mat[10] * invC * invScale.Z;
|
|
roty = mat[6] * invC * invScale.Y;
|
|
X = atan2( roty, rotx ) * RADTODEG64;
|
|
rotx = mat[0] * invC * invScale.X;
|
|
roty = mat[1] * invC * invScale.X;
|
|
Z = atan2( roty, rotx ) * RADTODEG64;
|
|
}
|
|
else
|
|
{
|
|
X = 0.0;
|
|
rotx = mat[5] * invScale.Y;
|
|
roty = -mat[4] * invScale.Y;
|
|
Z = atan2( roty, rotx ) * RADTODEG64;
|
|
}
|
|
|
|
// fix values that get below zero
|
|
if (X < 0.0) X += 360.0;
|
|
if (Y < 0.0) Y += 360.0;
|
|
if (Z < 0.0) Z += 360.0;
|
|
|
|
return vector3d<T>((T)X,(T)Y,(T)Z);
|
|
}
|
|
|
|
|
|
//! Sets matrix to rotation matrix of inverse angles given as parameters
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setInverseRotationRadians( const vector3d<T>& rotation )
|
|
{
|
|
f64 cr = cos( rotation.X );
|
|
f64 sr = sin( rotation.X );
|
|
f64 cp = cos( rotation.Y );
|
|
f64 sp = sin( rotation.Y );
|
|
f64 cy = cos( rotation.Z );
|
|
f64 sy = sin( rotation.Z );
|
|
|
|
M[0] = (T)( cp*cy );
|
|
M[4] = (T)( cp*sy );
|
|
M[8] = (T)( -sp );
|
|
|
|
f64 srsp = sr*sp;
|
|
f64 crsp = cr*sp;
|
|
|
|
M[1] = (T)( srsp*cy-cr*sy );
|
|
M[5] = (T)( srsp*sy+cr*cy );
|
|
M[9] = (T)( sr*cp );
|
|
|
|
M[2] = (T)( crsp*cy+sr*sy );
|
|
M[6] = (T)( crsp*sy-sr*cy );
|
|
M[10] = (T)( cr*cp );
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
//! Sets matrix to rotation matrix defined by axis and angle, assuming LH rotation
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setRotationAxisRadians( const T& angle, const vector3d<T>& axis )
|
|
{
|
|
const f64 c = cos(angle);
|
|
const f64 s = sin(angle);
|
|
const f64 t = 1.0 - c;
|
|
|
|
const f64 tx = t * axis.X;
|
|
const f64 ty = t * axis.Y;
|
|
const f64 tz = t * axis.Z;
|
|
|
|
const f64 sx = s * axis.X;
|
|
const f64 sy = s * axis.Y;
|
|
const f64 sz = s * axis.Z;
|
|
|
|
M[0] = (T)(tx * axis.X + c);
|
|
M[1] = (T)(tx * axis.Y + sz);
|
|
M[2] = (T)(tx * axis.Z - sy);
|
|
|
|
M[4] = (T)(ty * axis.X - sz);
|
|
M[5] = (T)(ty * axis.Y + c);
|
|
M[6] = (T)(ty * axis.Z + sx);
|
|
|
|
M[8] = (T)(tz * axis.X + sy);
|
|
M[9] = (T)(tz * axis.Y - sx);
|
|
M[10] = (T)(tz * axis.Z + c);
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
/*!
|
|
*/
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::makeIdentity()
|
|
{
|
|
memset(M, 0, 16*sizeof(T));
|
|
M[0] = M[5] = M[10] = M[15] = (T)1;
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=true;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
/*
|
|
check identity with epsilon
|
|
solve floating range problems..
|
|
*/
|
|
template <class T>
|
|
inline bool CMatrix4<T>::isIdentity() const
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
if (definitelyIdentityMatrix)
|
|
return true;
|
|
#endif
|
|
if (!core::equals( M[12], (T)0 ) || !core::equals( M[13], (T)0 ) || !core::equals( M[14], (T)0 ) || !core::equals( M[15], (T)1 ))
|
|
return false;
|
|
|
|
if (!core::equals( M[ 0], (T)1 ) || !core::equals( M[ 1], (T)0 ) || !core::equals( M[ 2], (T)0 ) || !core::equals( M[ 3], (T)0 ))
|
|
return false;
|
|
|
|
if (!core::equals( M[ 4], (T)0 ) || !core::equals( M[ 5], (T)1 ) || !core::equals( M[ 6], (T)0 ) || !core::equals( M[ 7], (T)0 ))
|
|
return false;
|
|
|
|
if (!core::equals( M[ 8], (T)0 ) || !core::equals( M[ 9], (T)0 ) || !core::equals( M[10], (T)1 ) || !core::equals( M[11], (T)0 ))
|
|
return false;
|
|
/*
|
|
if (!core::equals( M[ 0], (T)1 ) ||
|
|
!core::equals( M[ 5], (T)1 ) ||
|
|
!core::equals( M[10], (T)1 ) ||
|
|
!core::equals( M[15], (T)1 ))
|
|
return false;
|
|
|
|
for (s32 i=0; i<4; ++i)
|
|
for (s32 j=0; j<4; ++j)
|
|
if ((j != i) && (!iszero((*this)(i,j))))
|
|
return false;
|
|
*/
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=true;
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
|
|
/* Check orthogonality of matrix. */
|
|
template <class T>
|
|
inline bool CMatrix4<T>::isOrthogonal() const
|
|
{
|
|
T dp=M[0] * M[4 ] + M[1] * M[5 ] + M[2 ] * M[6 ] + M[3 ] * M[7 ];
|
|
if (!iszero(dp))
|
|
return false;
|
|
dp = M[0] * M[8 ] + M[1] * M[9 ] + M[2 ] * M[10] + M[3 ] * M[11];
|
|
if (!iszero(dp))
|
|
return false;
|
|
dp = M[0] * M[12] + M[1] * M[13] + M[2 ] * M[14] + M[3 ] * M[15];
|
|
if (!iszero(dp))
|
|
return false;
|
|
dp = M[4] * M[8 ] + M[5] * M[9 ] + M[6 ] * M[10] + M[7 ] * M[11];
|
|
if (!iszero(dp))
|
|
return false;
|
|
dp = M[4] * M[12] + M[5] * M[13] + M[6 ] * M[14] + M[7 ] * M[15];
|
|
if (!iszero(dp))
|
|
return false;
|
|
dp = M[8] * M[12] + M[9] * M[13] + M[10] * M[14] + M[11] * M[15];
|
|
return (iszero(dp));
|
|
}
|
|
|
|
|
|
/*
|
|
doesn't solve floating range problems..
|
|
but takes care on +/- 0 on translation because we are changing it..
|
|
reducing floating point branches
|
|
but it needs the floats in memory..
|
|
*/
|
|
template <class T>
|
|
inline bool CMatrix4<T>::isIdentity_integer_base() const
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
if (definitelyIdentityMatrix)
|
|
return true;
|
|
#endif
|
|
if(IR(M[0])!=F32_VALUE_1) return false;
|
|
if(IR(M[1])!=0) return false;
|
|
if(IR(M[2])!=0) return false;
|
|
if(IR(M[3])!=0) return false;
|
|
|
|
if(IR(M[4])!=0) return false;
|
|
if(IR(M[5])!=F32_VALUE_1) return false;
|
|
if(IR(M[6])!=0) return false;
|
|
if(IR(M[7])!=0) return false;
|
|
|
|
if(IR(M[8])!=0) return false;
|
|
if(IR(M[9])!=0) return false;
|
|
if(IR(M[10])!=F32_VALUE_1) return false;
|
|
if(IR(M[11])!=0) return false;
|
|
|
|
if(IR(M[12])!=0) return false;
|
|
if(IR(M[13])!=0) return false;
|
|
if(IR(M[13])!=0) return false;
|
|
if(IR(M[15])!=F32_VALUE_1) return false;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=true;
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
|
|
template <class T>
|
|
inline void CMatrix4<T>::rotateVect( vector3df& vect ) const
|
|
{
|
|
vector3df tmp = vect;
|
|
vect.X = tmp.X*M[0] + tmp.Y*M[4] + tmp.Z*M[8];
|
|
vect.Y = tmp.X*M[1] + tmp.Y*M[5] + tmp.Z*M[9];
|
|
vect.Z = tmp.X*M[2] + tmp.Y*M[6] + tmp.Z*M[10];
|
|
}
|
|
|
|
//! An alternate transform vector method, writing into a second vector
|
|
template <class T>
|
|
inline void CMatrix4<T>::rotateVect(core::vector3df& out, const core::vector3df& in) const
|
|
{
|
|
out.X = in.X*M[0] + in.Y*M[4] + in.Z*M[8];
|
|
out.Y = in.X*M[1] + in.Y*M[5] + in.Z*M[9];
|
|
out.Z = in.X*M[2] + in.Y*M[6] + in.Z*M[10];
|
|
}
|
|
|
|
//! An alternate transform vector method, writing into an array of 3 floats
|
|
template <class T>
|
|
inline void CMatrix4<T>::rotateVect(T *out, const core::vector3df& in) const
|
|
{
|
|
out[0] = in.X*M[0] + in.Y*M[4] + in.Z*M[8];
|
|
out[1] = in.X*M[1] + in.Y*M[5] + in.Z*M[9];
|
|
out[2] = in.X*M[2] + in.Y*M[6] + in.Z*M[10];
|
|
}
|
|
|
|
template <class T>
|
|
inline void CMatrix4<T>::inverseRotateVect( vector3df& vect ) const
|
|
{
|
|
vector3df tmp = vect;
|
|
vect.X = tmp.X*M[0] + tmp.Y*M[1] + tmp.Z*M[2];
|
|
vect.Y = tmp.X*M[4] + tmp.Y*M[5] + tmp.Z*M[6];
|
|
vect.Z = tmp.X*M[8] + tmp.Y*M[9] + tmp.Z*M[10];
|
|
}
|
|
|
|
template <class T>
|
|
inline void CMatrix4<T>::transformVect( vector3df& vect) const
|
|
{
|
|
f32 vector[3];
|
|
|
|
vector[0] = vect.X*M[0] + vect.Y*M[4] + vect.Z*M[8] + M[12];
|
|
vector[1] = vect.X*M[1] + vect.Y*M[5] + vect.Z*M[9] + M[13];
|
|
vector[2] = vect.X*M[2] + vect.Y*M[6] + vect.Z*M[10] + M[14];
|
|
|
|
vect.X = vector[0];
|
|
vect.Y = vector[1];
|
|
vect.Z = vector[2];
|
|
}
|
|
|
|
template <class T>
|
|
inline void CMatrix4<T>::transformVect( vector3df& out, const vector3df& in) const
|
|
{
|
|
out.X = in.X*M[0] + in.Y*M[4] + in.Z*M[8] + M[12];
|
|
out.Y = in.X*M[1] + in.Y*M[5] + in.Z*M[9] + M[13];
|
|
out.Z = in.X*M[2] + in.Y*M[6] + in.Z*M[10] + M[14];
|
|
}
|
|
|
|
|
|
template <class T>
|
|
inline void CMatrix4<T>::transformVect(T *out, const core::vector3df &in) const
|
|
{
|
|
out[0] = in.X*M[0] + in.Y*M[4] + in.Z*M[8] + M[12];
|
|
out[1] = in.X*M[1] + in.Y*M[5] + in.Z*M[9] + M[13];
|
|
out[2] = in.X*M[2] + in.Y*M[6] + in.Z*M[10] + M[14];
|
|
out[3] = in.X*M[3] + in.Y*M[7] + in.Z*M[11] + M[15];
|
|
}
|
|
|
|
template <class T>
|
|
inline void CMatrix4<T>::transformVec3(T *out, const T * in) const
|
|
{
|
|
out[0] = in[0]*M[0] + in[1]*M[4] + in[2]*M[8] + M[12];
|
|
out[1] = in[0]*M[1] + in[1]*M[5] + in[2]*M[9] + M[13];
|
|
out[2] = in[0]*M[2] + in[1]*M[6] + in[2]*M[10] + M[14];
|
|
}
|
|
|
|
|
|
//! Transforms a plane by this matrix
|
|
template <class T>
|
|
inline void CMatrix4<T>::transformPlane( core::plane3d<f32> &plane) const
|
|
{
|
|
vector3df member;
|
|
// Transform the plane member point, i.e. rotate, translate and scale it.
|
|
transformVect(member, plane.getMemberPoint());
|
|
|
|
// Transform the normal by the transposed inverse of the matrix
|
|
CMatrix4<T> transposedInverse(*this, EM4CONST_INVERSE_TRANSPOSED);
|
|
vector3df normal = plane.Normal;
|
|
transposedInverse.transformVect(normal);
|
|
|
|
plane.setPlane(member, normal);
|
|
}
|
|
|
|
//! Transforms a plane by this matrix
|
|
template <class T>
|
|
inline void CMatrix4<T>::transformPlane( const core::plane3d<f32> &in, core::plane3d<f32> &out) const
|
|
{
|
|
out = in;
|
|
transformPlane( out );
|
|
}
|
|
|
|
//! Transforms a axis aligned bounding box
|
|
template <class T>
|
|
inline void CMatrix4<T>::transformBox(core::aabbox3d<f32>& box) const
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
if (isIdentity())
|
|
return;
|
|
#endif
|
|
|
|
transformVect(box.MinEdge);
|
|
transformVect(box.MaxEdge);
|
|
box.repair();
|
|
}
|
|
|
|
//! Transforms a axis aligned bounding box more accurately than transformBox()
|
|
template <class T>
|
|
inline void CMatrix4<T>::transformBoxEx(core::aabbox3d<f32>& box) const
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
if (isIdentity())
|
|
return;
|
|
#endif
|
|
|
|
const f32 Amin[3] = {box.MinEdge.X, box.MinEdge.Y, box.MinEdge.Z};
|
|
const f32 Amax[3] = {box.MaxEdge.X, box.MaxEdge.Y, box.MaxEdge.Z};
|
|
|
|
f32 Bmin[3];
|
|
f32 Bmax[3];
|
|
|
|
Bmin[0] = Bmax[0] = M[12];
|
|
Bmin[1] = Bmax[1] = M[13];
|
|
Bmin[2] = Bmax[2] = M[14];
|
|
|
|
const CMatrix4<T> &m = *this;
|
|
|
|
for (u32 i = 0; i < 3; ++i)
|
|
{
|
|
for (u32 j = 0; j < 3; ++j)
|
|
{
|
|
const f32 a = m(j,i) * Amin[j];
|
|
const f32 b = m(j,i) * Amax[j];
|
|
|
|
if (a < b)
|
|
{
|
|
Bmin[i] += a;
|
|
Bmax[i] += b;
|
|
}
|
|
else
|
|
{
|
|
Bmin[i] += b;
|
|
Bmax[i] += a;
|
|
}
|
|
}
|
|
}
|
|
|
|
box.MinEdge.X = Bmin[0];
|
|
box.MinEdge.Y = Bmin[1];
|
|
box.MinEdge.Z = Bmin[2];
|
|
|
|
box.MaxEdge.X = Bmax[0];
|
|
box.MaxEdge.Y = Bmax[1];
|
|
box.MaxEdge.Z = Bmax[2];
|
|
}
|
|
|
|
|
|
//! Multiplies this matrix by a 1x4 matrix
|
|
template <class T>
|
|
inline void CMatrix4<T>::multiplyWith1x4Matrix(T* matrix) const
|
|
{
|
|
/*
|
|
0 1 2 3
|
|
4 5 6 7
|
|
8 9 10 11
|
|
12 13 14 15
|
|
*/
|
|
|
|
T mat[4];
|
|
mat[0] = matrix[0];
|
|
mat[1] = matrix[1];
|
|
mat[2] = matrix[2];
|
|
mat[3] = matrix[3];
|
|
|
|
matrix[0] = M[0]*mat[0] + M[4]*mat[1] + M[8]*mat[2] + M[12]*mat[3];
|
|
matrix[1] = M[1]*mat[0] + M[5]*mat[1] + M[9]*mat[2] + M[13]*mat[3];
|
|
matrix[2] = M[2]*mat[0] + M[6]*mat[1] + M[10]*mat[2] + M[14]*mat[3];
|
|
matrix[3] = M[3]*mat[0] + M[7]*mat[1] + M[11]*mat[2] + M[15]*mat[3];
|
|
}
|
|
|
|
template <class T>
|
|
inline void CMatrix4<T>::inverseTranslateVect( vector3df& vect ) const
|
|
{
|
|
vect.X = vect.X-M[12];
|
|
vect.Y = vect.Y-M[13];
|
|
vect.Z = vect.Z-M[14];
|
|
}
|
|
|
|
template <class T>
|
|
inline void CMatrix4<T>::translateVect( vector3df& vect ) const
|
|
{
|
|
vect.X = vect.X+M[12];
|
|
vect.Y = vect.Y+M[13];
|
|
vect.Z = vect.Z+M[14];
|
|
}
|
|
|
|
|
|
template <class T>
|
|
inline bool CMatrix4<T>::getInverse(CMatrix4<T>& out) const
|
|
{
|
|
/// Calculates the inverse of this Matrix
|
|
/// The inverse is calculated using Cramers rule.
|
|
/// If no inverse exists then 'false' is returned.
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
if ( this->isIdentity() )
|
|
{
|
|
out=*this;
|
|
return true;
|
|
}
|
|
#endif
|
|
const CMatrix4<T> &m = *this;
|
|
#if defined(WIN32) && (defined(__x86_64__) || defined(_M_X64) || defined(__i386) || defined(_M_IX86))
|
|
float *src = (float*)m.pointer();
|
|
float *dst = (float*)out.pointer();
|
|
// from http://www.intel.com/design/pentiumiii/sml/245043.htm
|
|
{
|
|
__m128 minor0 = {}, minor1 = {}, minor2 = {}, minor3 = {};
|
|
__m128 row0 = {}, row1 = {}, row2 = {}, row3 = {};
|
|
__m128 det = {}, tmp1 = {};
|
|
tmp1 = _mm_loadh_pi(_mm_loadl_pi(tmp1, (__m64*)(src)), (__m64*)(src + 4));
|
|
row1 = _mm_loadh_pi(_mm_loadl_pi(row1, (__m64*)(src + 8)), (__m64*)(src + 12));
|
|
row0 = _mm_shuffle_ps(tmp1, row1, 0x88);
|
|
row1 = _mm_shuffle_ps(row1, tmp1, 0xDD);
|
|
tmp1 = _mm_loadh_pi(_mm_loadl_pi(tmp1, (__m64*)(src + 2)), (__m64*)(src + 6));
|
|
row3 = _mm_loadh_pi(_mm_loadl_pi(row3, (__m64*)(src + 10)), (__m64*)(src + 14));
|
|
row2 = _mm_shuffle_ps(tmp1, row3, 0x88);
|
|
row3 = _mm_shuffle_ps(row3, tmp1, 0xDD);
|
|
// -----------------------------------------------
|
|
tmp1 = _mm_mul_ps(row2, row3);
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0xB1);
|
|
minor0 = _mm_mul_ps(row1, tmp1);
|
|
minor1 = _mm_mul_ps(row0, tmp1);
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0x4E);
|
|
minor0 = _mm_sub_ps(_mm_mul_ps(row1, tmp1), minor0);
|
|
minor1 = _mm_sub_ps(_mm_mul_ps(row0, tmp1), minor1);
|
|
minor1 = _mm_shuffle_ps(minor1, minor1, 0x4E);
|
|
// -----------------------------------------------
|
|
tmp1 = _mm_mul_ps(row1, row2);
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0xB1);
|
|
minor0 = _mm_add_ps(_mm_mul_ps(row3, tmp1), minor0);
|
|
minor3 = _mm_mul_ps(row0, tmp1);
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0x4E);
|
|
minor0 = _mm_sub_ps(minor0, _mm_mul_ps(row3, tmp1));
|
|
minor3 = _mm_sub_ps(_mm_mul_ps(row0, tmp1), minor3);
|
|
minor3 = _mm_shuffle_ps(minor3, minor3, 0x4E);
|
|
// -----------------------------------------------
|
|
tmp1 = _mm_mul_ps(_mm_shuffle_ps(row1, row1, 0x4E), row3);
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0xB1);
|
|
row2 = _mm_shuffle_ps(row2, row2, 0x4E);
|
|
minor0 = _mm_add_ps(_mm_mul_ps(row2, tmp1), minor0);
|
|
minor2 = _mm_mul_ps(row0, tmp1);
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0x4E);
|
|
minor0 = _mm_sub_ps(minor0, _mm_mul_ps(row2, tmp1));
|
|
minor2 = _mm_sub_ps(_mm_mul_ps(row0, tmp1), minor2);
|
|
minor2 = _mm_shuffle_ps(minor2, minor2, 0x4E);
|
|
// -----------------------------------------------
|
|
tmp1 = _mm_mul_ps(row0, row1);
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0xB1);
|
|
minor2 = _mm_add_ps(_mm_mul_ps(row3, tmp1), minor2);
|
|
minor3 = _mm_sub_ps(_mm_mul_ps(row2, tmp1), minor3);
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0x4E);
|
|
minor2 = _mm_sub_ps(_mm_mul_ps(row3, tmp1), minor2);
|
|
minor3 = _mm_sub_ps(minor3, _mm_mul_ps(row2, tmp1));
|
|
// -----------------------------------------------
|
|
tmp1 = _mm_mul_ps(row0, row3);
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0xB1);
|
|
minor1 = _mm_sub_ps(minor1, _mm_mul_ps(row2, tmp1));
|
|
minor2 = _mm_add_ps(_mm_mul_ps(row1, tmp1), minor2);
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0x4E);
|
|
minor1 = _mm_add_ps(_mm_mul_ps(row2, tmp1), minor1);
|
|
minor2 = _mm_sub_ps(minor2, _mm_mul_ps(row1, tmp1));
|
|
// -----------------------------------------------
|
|
tmp1 = _mm_mul_ps(row0, row2);
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0xB1);
|
|
minor1 = _mm_add_ps(_mm_mul_ps(row3, tmp1), minor1);
|
|
minor3 = _mm_sub_ps(minor3, _mm_mul_ps(row1, tmp1));
|
|
tmp1 = _mm_shuffle_ps(tmp1, tmp1, 0x4E);
|
|
minor1 = _mm_sub_ps(minor1, _mm_mul_ps(row3, tmp1));
|
|
minor3 = _mm_add_ps(_mm_mul_ps(row1, tmp1), minor3);
|
|
// -----------------------------------------------
|
|
det = _mm_mul_ps(row0, minor0);
|
|
det = _mm_add_ps(_mm_shuffle_ps(det, det, 0x4E), det);
|
|
det = _mm_add_ss(_mm_shuffle_ps(det, det, 0xB1), det);
|
|
tmp1 = _mm_rcp_ss(det);
|
|
det = _mm_sub_ss(_mm_add_ss(tmp1, tmp1), _mm_mul_ss(det, _mm_mul_ss(tmp1, tmp1)));
|
|
det = _mm_shuffle_ps(det, det, 0x00);
|
|
minor0 = _mm_mul_ps(det, minor0);
|
|
_mm_storel_pi((__m64*)(dst), minor0);
|
|
_mm_storeh_pi((__m64*)(dst + 2), minor0);
|
|
minor1 = _mm_mul_ps(det, minor1);
|
|
_mm_storel_pi((__m64*)(dst + 4), minor1);
|
|
_mm_storeh_pi((__m64*)(dst + 6), minor1);
|
|
minor2 = _mm_mul_ps(det, minor2);
|
|
_mm_storel_pi((__m64*)(dst + 8), minor2);
|
|
_mm_storeh_pi((__m64*)(dst + 10), minor2);
|
|
minor3 = _mm_mul_ps(det, minor3);
|
|
_mm_storel_pi((__m64*)(dst + 12), minor3);
|
|
_mm_storeh_pi((__m64*)(dst + 14), minor3);
|
|
}
|
|
return true;
|
|
#else
|
|
|
|
f32 d = (m(0, 0) * m(1, 1) - m(0, 1) * m(1, 0)) * (m(2, 2) * m(3, 3) - m(2, 3) * m(3, 2)) -
|
|
(m(0, 0) * m(1, 2) - m(0, 2) * m(1, 0)) * (m(2, 1) * m(3, 3) - m(2, 3) * m(3, 1)) +
|
|
(m(0, 0) * m(1, 3) - m(0, 3) * m(1, 0)) * (m(2, 1) * m(3, 2) - m(2, 2) * m(3, 1)) +
|
|
(m(0, 1) * m(1, 2) - m(0, 2) * m(1, 1)) * (m(2, 0) * m(3, 3) - m(2, 3) * m(3, 0)) -
|
|
(m(0, 1) * m(1, 3) - m(0, 3) * m(1, 1)) * (m(2, 0) * m(3, 2) - m(2, 2) * m(3, 0)) +
|
|
(m(0, 2) * m(1, 3) - m(0, 3) * m(1, 2)) * (m(2, 0) * m(3, 1) - m(2, 1) * m(3, 0));
|
|
|
|
if( core::iszero ( d, FLT_MIN ) )
|
|
return false;
|
|
|
|
d = core::reciprocal ( d );
|
|
|
|
out(0, 0) = d * (m(1, 1) * (m(2, 2) * m(3, 3) - m(2, 3) * m(3, 2)) +
|
|
m(1, 2) * (m(2, 3) * m(3, 1) - m(2, 1) * m(3, 3)) +
|
|
m(1, 3) * (m(2, 1) * m(3, 2) - m(2, 2) * m(3, 1)));
|
|
out(0, 1) = d * (m(2, 1) * (m(0, 2) * m(3, 3) - m(0, 3) * m(3, 2)) +
|
|
m(2, 2) * (m(0, 3) * m(3, 1) - m(0, 1) * m(3, 3)) +
|
|
m(2, 3) * (m(0, 1) * m(3, 2) - m(0, 2) * m(3, 1)));
|
|
out(0, 2) = d * (m(3, 1) * (m(0, 2) * m(1, 3) - m(0, 3) * m(1, 2)) +
|
|
m(3, 2) * (m(0, 3) * m(1, 1) - m(0, 1) * m(1, 3)) +
|
|
m(3, 3) * (m(0, 1) * m(1, 2) - m(0, 2) * m(1, 1)));
|
|
out(0, 3) = d * (m(0, 1) * (m(1, 3) * m(2, 2) - m(1, 2) * m(2, 3)) +
|
|
m(0, 2) * (m(1, 1) * m(2, 3) - m(1, 3) * m(2, 1)) +
|
|
m(0, 3) * (m(1, 2) * m(2, 1) - m(1, 1) * m(2, 2)));
|
|
out(1, 0) = d * (m(1, 2) * (m(2, 0) * m(3, 3) - m(2, 3) * m(3, 0)) +
|
|
m(1, 3) * (m(2, 2) * m(3, 0) - m(2, 0) * m(3, 2)) +
|
|
m(1, 0) * (m(2, 3) * m(3, 2) - m(2, 2) * m(3, 3)));
|
|
out(1, 1) = d * (m(2, 2) * (m(0, 0) * m(3, 3) - m(0, 3) * m(3, 0)) +
|
|
m(2, 3) * (m(0, 2) * m(3, 0) - m(0, 0) * m(3, 2)) +
|
|
m(2, 0) * (m(0, 3) * m(3, 2) - m(0, 2) * m(3, 3)));
|
|
out(1, 2) = d * (m(3, 2) * (m(0, 0) * m(1, 3) - m(0, 3) * m(1, 0)) +
|
|
m(3, 3) * (m(0, 2) * m(1, 0) - m(0, 0) * m(1, 2)) +
|
|
m(3, 0) * (m(0, 3) * m(1, 2) - m(0, 2) * m(1, 3)));
|
|
out(1, 3) = d * (m(0, 2) * (m(1, 3) * m(2, 0) - m(1, 0) * m(2, 3)) +
|
|
m(0, 3) * (m(1, 0) * m(2, 2) - m(1, 2) * m(2, 0)) +
|
|
m(0, 0) * (m(1, 2) * m(2, 3) - m(1, 3) * m(2, 2)));
|
|
out(2, 0) = d * (m(1, 3) * (m(2, 0) * m(3, 1) - m(2, 1) * m(3, 0)) +
|
|
m(1, 0) * (m(2, 1) * m(3, 3) - m(2, 3) * m(3, 1)) +
|
|
m(1, 1) * (m(2, 3) * m(3, 0) - m(2, 0) * m(3, 3)));
|
|
out(2, 1) = d * (m(2, 3) * (m(0, 0) * m(3, 1) - m(0, 1) * m(3, 0)) +
|
|
m(2, 0) * (m(0, 1) * m(3, 3) - m(0, 3) * m(3, 1)) +
|
|
m(2, 1) * (m(0, 3) * m(3, 0) - m(0, 0) * m(3, 3)));
|
|
out(2, 2) = d * (m(3, 3) * (m(0, 0) * m(1, 1) - m(0, 1) * m(1, 0)) +
|
|
m(3, 0) * (m(0, 1) * m(1, 3) - m(0, 3) * m(1, 1)) +
|
|
m(3, 1) * (m(0, 3) * m(1, 0) - m(0, 0) * m(1, 3)));
|
|
out(2, 3) = d * (m(0, 3) * (m(1, 1) * m(2, 0) - m(1, 0) * m(2, 1)) +
|
|
m(0, 0) * (m(1, 3) * m(2, 1) - m(1, 1) * m(2, 3)) +
|
|
m(0, 1) * (m(1, 0) * m(2, 3) - m(1, 3) * m(2, 0)));
|
|
out(3, 0) = d * (m(1, 0) * (m(2, 2) * m(3, 1) - m(2, 1) * m(3, 2)) +
|
|
m(1, 1) * (m(2, 0) * m(3, 2) - m(2, 2) * m(3, 0)) +
|
|
m(1, 2) * (m(2, 1) * m(3, 0) - m(2, 0) * m(3, 1)));
|
|
out(3, 1) = d * (m(2, 0) * (m(0, 2) * m(3, 1) - m(0, 1) * m(3, 2)) +
|
|
m(2, 1) * (m(0, 0) * m(3, 2) - m(0, 2) * m(3, 0)) +
|
|
m(2, 2) * (m(0, 1) * m(3, 0) - m(0, 0) * m(3, 1)));
|
|
out(3, 2) = d * (m(3, 0) * (m(0, 2) * m(1, 1) - m(0, 1) * m(1, 2)) +
|
|
m(3, 1) * (m(0, 0) * m(1, 2) - m(0, 2) * m(1, 0)) +
|
|
m(3, 2) * (m(0, 1) * m(1, 0) - m(0, 0) * m(1, 1)));
|
|
out(3, 3) = d * (m(0, 0) * (m(1, 1) * m(2, 2) - m(1, 2) * m(2, 1)) +
|
|
m(0, 1) * (m(1, 2) * m(2, 0) - m(1, 0) * m(2, 2)) +
|
|
m(0, 2) * (m(1, 0) * m(2, 1) - m(1, 1) * m(2, 0)));
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
out.definitelyIdentityMatrix = definitelyIdentityMatrix;
|
|
#endif
|
|
return true;
|
|
#endif
|
|
}
|
|
|
|
|
|
//! Inverts a primitive matrix which only contains a translation and a rotation
|
|
//! \param out: where result matrix is written to.
|
|
template <class T>
|
|
inline bool CMatrix4<T>::getInversePrimitive ( CMatrix4<T>& out ) const
|
|
{
|
|
out.M[0 ] = M[0];
|
|
out.M[1 ] = M[4];
|
|
out.M[2 ] = M[8];
|
|
out.M[3 ] = 0;
|
|
|
|
out.M[4 ] = M[1];
|
|
out.M[5 ] = M[5];
|
|
out.M[6 ] = M[9];
|
|
out.M[7 ] = 0;
|
|
|
|
out.M[8 ] = M[2];
|
|
out.M[9 ] = M[6];
|
|
out.M[10] = M[10];
|
|
out.M[11] = 0;
|
|
|
|
out.M[12] = (T)-(M[12]*M[0] + M[13]*M[1] + M[14]*M[2]);
|
|
out.M[13] = (T)-(M[12]*M[4] + M[13]*M[5] + M[14]*M[6]);
|
|
out.M[14] = (T)-(M[12]*M[8] + M[13]*M[9] + M[14]*M[10]);
|
|
out.M[15] = 1;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
out.definitelyIdentityMatrix = definitelyIdentityMatrix;
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
template <class T>
|
|
inline bool CMatrix4<T>::makeInverse()
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
if (definitelyIdentityMatrix)
|
|
return true;
|
|
#endif
|
|
CMatrix4<T> temp ( EM4CONST_NOTHING );
|
|
|
|
if (getInverse(temp))
|
|
{
|
|
*this = temp;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::operator=(const CMatrix4<T> &other)
|
|
{
|
|
if (this==&other)
|
|
return *this;
|
|
memcpy(M, other.M, 16*sizeof(T));
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=other.definitelyIdentityMatrix;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::operator=(const T& scalar)
|
|
{
|
|
for (s32 i = 0; i < 16; ++i)
|
|
M[i]=scalar;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
template <class T>
|
|
inline bool CMatrix4<T>::operator==(const CMatrix4<T> &other) const
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
if (definitelyIdentityMatrix && other.definitelyIdentityMatrix)
|
|
return true;
|
|
#endif
|
|
for (s32 i = 0; i < 16; ++i)
|
|
if (M[i] != other.M[i])
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
template <class T>
|
|
inline bool CMatrix4<T>::operator!=(const CMatrix4<T> &other) const
|
|
{
|
|
return !(*this == other);
|
|
}
|
|
|
|
|
|
// Builds a right-handed perspective projection matrix based on a field of view
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildProjectionMatrixPerspectiveFovRH(
|
|
f32 fieldOfViewRadians, f32 aspectRatio, f32 zNear, f32 zFar)
|
|
{
|
|
const f64 h = reciprocal(tan(fieldOfViewRadians*0.5));
|
|
_IRR_DEBUG_BREAK_IF(aspectRatio==0.f); //divide by zero
|
|
const T w = static_cast<T>(h / aspectRatio);
|
|
|
|
_IRR_DEBUG_BREAK_IF(zNear==zFar); //divide by zero
|
|
M[0] = w;
|
|
M[1] = 0;
|
|
M[2] = 0;
|
|
M[3] = 0;
|
|
|
|
M[4] = 0;
|
|
M[5] = (T)h;
|
|
M[6] = 0;
|
|
M[7] = 0;
|
|
|
|
M[8] = 0;
|
|
M[9] = 0;
|
|
M[10] = (T)(zFar/(zNear-zFar)); // DirectX version
|
|
// M[10] = (T)(zFar+zNear/(zNear-zFar)); // OpenGL version
|
|
M[11] = -1;
|
|
|
|
M[12] = 0;
|
|
M[13] = 0;
|
|
M[14] = (T)(zNear*zFar/(zNear-zFar)); // DirectX version
|
|
// M[14] = (T)(2.0f*zNear*zFar/(zNear-zFar)); // OpenGL version
|
|
M[15] = 0;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
// Builds a left-handed perspective projection matrix based on a field of view
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildProjectionMatrixPerspectiveFovLH(
|
|
f32 fieldOfViewRadians, f32 aspectRatio, f32 zNear, f32 zFar)
|
|
{
|
|
const f64 h = reciprocal(tan(fieldOfViewRadians*0.5));
|
|
_IRR_DEBUG_BREAK_IF(aspectRatio==0.f); //divide by zero
|
|
const T w = static_cast<T>(h / aspectRatio);
|
|
|
|
_IRR_DEBUG_BREAK_IF(zNear==zFar); //divide by zero
|
|
M[0] = w;
|
|
M[1] = 0;
|
|
M[2] = 0;
|
|
M[3] = 0;
|
|
|
|
M[4] = 0;
|
|
M[5] = (T)h;
|
|
M[6] = 0;
|
|
M[7] = 0;
|
|
|
|
M[8] = 0;
|
|
M[9] = 0;
|
|
M[10] = (T)(zFar/(zFar-zNear));
|
|
M[11] = 1;
|
|
|
|
M[12] = 0;
|
|
M[13] = 0;
|
|
M[14] = (T)(-zNear*zFar/(zFar-zNear));
|
|
M[15] = 0;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
// Builds a left-handed perspective projection matrix based on a field of view, with far plane culling at infinity
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildProjectionMatrixPerspectiveFovInfinityLH(
|
|
f32 fieldOfViewRadians, f32 aspectRatio, f32 zNear, f32 epsilon)
|
|
{
|
|
const f64 h = reciprocal(tan(fieldOfViewRadians*0.5));
|
|
_IRR_DEBUG_BREAK_IF(aspectRatio==0.f); //divide by zero
|
|
const T w = static_cast<T>(h / aspectRatio);
|
|
|
|
M[0] = w;
|
|
M[1] = 0;
|
|
M[2] = 0;
|
|
M[3] = 0;
|
|
|
|
M[4] = 0;
|
|
M[5] = (T)h;
|
|
M[6] = 0;
|
|
M[7] = 0;
|
|
|
|
M[8] = 0;
|
|
M[9] = 0;
|
|
M[10] = (T)(1.f-epsilon);
|
|
M[11] = 1;
|
|
|
|
M[12] = 0;
|
|
M[13] = 0;
|
|
M[14] = (T)(zNear*(epsilon-1.f));
|
|
M[15] = 0;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
// Builds a left-handed orthogonal projection matrix.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildProjectionMatrixOrthoLH(
|
|
f32 widthOfViewVolume, f32 heightOfViewVolume, f32 zNear, f32 zFar)
|
|
{
|
|
_IRR_DEBUG_BREAK_IF(widthOfViewVolume==0.f); //divide by zero
|
|
_IRR_DEBUG_BREAK_IF(heightOfViewVolume==0.f); //divide by zero
|
|
_IRR_DEBUG_BREAK_IF(zNear==zFar); //divide by zero
|
|
M[0] = (T)(2/widthOfViewVolume);
|
|
M[1] = 0;
|
|
M[2] = 0;
|
|
M[3] = 0;
|
|
|
|
M[4] = 0;
|
|
M[5] = (T)(2/heightOfViewVolume);
|
|
M[6] = 0;
|
|
M[7] = 0;
|
|
|
|
M[8] = 0;
|
|
M[9] = 0;
|
|
M[10] = (T)(1/(zFar-zNear));
|
|
M[11] = 0;
|
|
|
|
M[12] = 0;
|
|
M[13] = 0;
|
|
M[14] = (T)(zNear/(zNear-zFar));
|
|
M[15] = 1;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
// Builds a left-handed orthogonal projection matrix, with specific corners.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildProjectionMatrixOrthoLH(
|
|
f32 left, f32 right, f32 up, f32 down,
|
|
f32 zNear, f32 zFar)
|
|
{
|
|
_IRR_DEBUG_BREAK_IF(zNear == zFar); //divide by zero
|
|
_IRR_DEBUG_BREAK_IF(right == left); //divide by zero
|
|
_IRR_DEBUG_BREAK_IF(up == down); //divide by zero
|
|
|
|
M[0] = (T)(2/(right - left));
|
|
M[1] = 0;
|
|
M[2] = 0;
|
|
M[3] = 0;
|
|
|
|
M[4] = 0;
|
|
M[5] = (T)(2/(up - down));
|
|
M[6] = 0;
|
|
M[7] = 0;
|
|
|
|
M[8] = 0;
|
|
M[9] = 0;
|
|
M[10] = (T)(1/(zFar - zNear));
|
|
M[11] = 0;
|
|
|
|
M[12] = (T)-((right + left) / (right - left));
|
|
M[13] = (T)-((up + down) / (up - down));
|
|
M[14] = (T)(zNear/(zNear-zFar));
|
|
M[15] = 1;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
// Builds a right-handed orthogonal projection matrix.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildProjectionMatrixOrthoRH(
|
|
f32 widthOfViewVolume, f32 heightOfViewVolume, f32 zNear, f32 zFar)
|
|
{
|
|
_IRR_DEBUG_BREAK_IF(widthOfViewVolume==0.f); //divide by zero
|
|
_IRR_DEBUG_BREAK_IF(heightOfViewVolume==0.f); //divide by zero
|
|
_IRR_DEBUG_BREAK_IF(zNear==zFar); //divide by zero
|
|
M[0] = (T)(2/widthOfViewVolume);
|
|
M[1] = 0;
|
|
M[2] = 0;
|
|
M[3] = 0;
|
|
|
|
M[4] = 0;
|
|
M[5] = (T)(2/heightOfViewVolume);
|
|
M[6] = 0;
|
|
M[7] = 0;
|
|
|
|
M[8] = 0;
|
|
M[9] = 0;
|
|
M[10] = (T)(1/(zNear-zFar));
|
|
M[11] = 0;
|
|
|
|
M[12] = 0;
|
|
M[13] = 0;
|
|
M[14] = (T)(zNear/(zNear-zFar));
|
|
M[15] = 1;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
// Builds a right-handed perspective projection matrix.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildProjectionMatrixPerspectiveRH(
|
|
f32 widthOfViewVolume, f32 heightOfViewVolume, f32 zNear, f32 zFar)
|
|
{
|
|
_IRR_DEBUG_BREAK_IF(widthOfViewVolume==0.f); //divide by zero
|
|
_IRR_DEBUG_BREAK_IF(heightOfViewVolume==0.f); //divide by zero
|
|
_IRR_DEBUG_BREAK_IF(zNear==zFar); //divide by zero
|
|
M[0] = (T)(2*zNear/widthOfViewVolume);
|
|
M[1] = 0;
|
|
M[2] = 0;
|
|
M[3] = 0;
|
|
|
|
M[4] = 0;
|
|
M[5] = (T)(2*zNear/heightOfViewVolume);
|
|
M[6] = 0;
|
|
M[7] = 0;
|
|
|
|
M[8] = 0;
|
|
M[9] = 0;
|
|
M[10] = (T)(zFar/(zNear-zFar));
|
|
M[11] = -1;
|
|
|
|
M[12] = 0;
|
|
M[13] = 0;
|
|
M[14] = (T)(zNear*zFar/(zNear-zFar));
|
|
M[15] = 0;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
// Builds a left-handed perspective projection matrix.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildProjectionMatrixPerspectiveLH(
|
|
f32 widthOfViewVolume, f32 heightOfViewVolume, f32 zNear, f32 zFar)
|
|
{
|
|
_IRR_DEBUG_BREAK_IF(widthOfViewVolume==0.f); //divide by zero
|
|
_IRR_DEBUG_BREAK_IF(heightOfViewVolume==0.f); //divide by zero
|
|
_IRR_DEBUG_BREAK_IF(zNear==zFar); //divide by zero
|
|
M[0] = (T)(2*zNear/widthOfViewVolume);
|
|
M[1] = 0;
|
|
M[2] = 0;
|
|
M[3] = 0;
|
|
|
|
M[4] = 0;
|
|
M[5] = (T)(2*zNear/heightOfViewVolume);
|
|
M[6] = 0;
|
|
M[7] = 0;
|
|
|
|
M[8] = 0;
|
|
M[9] = 0;
|
|
M[10] = (T)(zFar/(zFar-zNear));
|
|
M[11] = 1;
|
|
|
|
M[12] = 0;
|
|
M[13] = 0;
|
|
M[14] = (T)(zNear*zFar/(zNear-zFar));
|
|
M[15] = 0;
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
// Builds a matrix that flattens geometry into a plane.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildShadowMatrix(const core::vector3df& light, core::plane3df plane, f32 point)
|
|
{
|
|
plane.Normal.normalize();
|
|
const f32 d = plane.Normal.dotProduct(light);
|
|
|
|
M[ 0] = (T)(-plane.Normal.X * light.X + d);
|
|
M[ 1] = (T)(-plane.Normal.X * light.Y);
|
|
M[ 2] = (T)(-plane.Normal.X * light.Z);
|
|
M[ 3] = (T)(-plane.Normal.X * point);
|
|
|
|
M[ 4] = (T)(-plane.Normal.Y * light.X);
|
|
M[ 5] = (T)(-plane.Normal.Y * light.Y + d);
|
|
M[ 6] = (T)(-plane.Normal.Y * light.Z);
|
|
M[ 7] = (T)(-plane.Normal.Y * point);
|
|
|
|
M[ 8] = (T)(-plane.Normal.Z * light.X);
|
|
M[ 9] = (T)(-plane.Normal.Z * light.Y);
|
|
M[10] = (T)(-plane.Normal.Z * light.Z + d);
|
|
M[11] = (T)(-plane.Normal.Z * point);
|
|
|
|
M[12] = (T)(-plane.D * light.X);
|
|
M[13] = (T)(-plane.D * light.Y);
|
|
M[14] = (T)(-plane.D * light.Z);
|
|
M[15] = (T)(-plane.D * point + d);
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
// Builds a left-handed look-at matrix.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildCameraLookAtMatrixLH(
|
|
const vector3df& position,
|
|
const vector3df& target,
|
|
const vector3df& upVector)
|
|
{
|
|
vector3df zaxis = target - position;
|
|
zaxis.normalize();
|
|
|
|
vector3df xaxis = upVector.crossProduct(zaxis);
|
|
xaxis.normalize();
|
|
|
|
vector3df yaxis = zaxis.crossProduct(xaxis);
|
|
|
|
M[0] = (T)xaxis.X;
|
|
M[1] = (T)yaxis.X;
|
|
M[2] = (T)zaxis.X;
|
|
M[3] = 0;
|
|
|
|
M[4] = (T)xaxis.Y;
|
|
M[5] = (T)yaxis.Y;
|
|
M[6] = (T)zaxis.Y;
|
|
M[7] = 0;
|
|
|
|
M[8] = (T)xaxis.Z;
|
|
M[9] = (T)yaxis.Z;
|
|
M[10] = (T)zaxis.Z;
|
|
M[11] = 0;
|
|
|
|
M[12] = (T)-xaxis.dotProduct(position);
|
|
M[13] = (T)-yaxis.dotProduct(position);
|
|
M[14] = (T)-zaxis.dotProduct(position);
|
|
M[15] = 1;
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
// Builds a right-handed look-at matrix.
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildCameraLookAtMatrixRH(
|
|
const vector3df& position,
|
|
const vector3df& target,
|
|
const vector3df& upVector)
|
|
{
|
|
vector3df zaxis = position - target;
|
|
zaxis.normalize();
|
|
|
|
vector3df xaxis = upVector.crossProduct(zaxis);
|
|
xaxis.normalize();
|
|
|
|
vector3df yaxis = zaxis.crossProduct(xaxis);
|
|
|
|
M[0] = (T)xaxis.X;
|
|
M[1] = (T)yaxis.X;
|
|
M[2] = (T)zaxis.X;
|
|
M[3] = 0;
|
|
|
|
M[4] = (T)xaxis.Y;
|
|
M[5] = (T)yaxis.Y;
|
|
M[6] = (T)zaxis.Y;
|
|
M[7] = 0;
|
|
|
|
M[8] = (T)xaxis.Z;
|
|
M[9] = (T)yaxis.Z;
|
|
M[10] = (T)zaxis.Z;
|
|
M[11] = 0;
|
|
|
|
M[12] = (T)-xaxis.dotProduct(position);
|
|
M[13] = (T)-yaxis.dotProduct(position);
|
|
M[14] = (T)-zaxis.dotProduct(position);
|
|
M[15] = 1;
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
// creates a new matrix as interpolated matrix from this and the passed one.
|
|
template <class T>
|
|
inline CMatrix4<T> CMatrix4<T>::interpolate(const core::CMatrix4<T>& b, f32 time) const
|
|
{
|
|
CMatrix4<T> mat ( EM4CONST_NOTHING );
|
|
|
|
for (u32 i=0; i < 16; i += 4)
|
|
{
|
|
mat.M[i+0] = (T)(M[i+0] + ( b.M[i+0] - M[i+0] ) * time);
|
|
mat.M[i+1] = (T)(M[i+1] + ( b.M[i+1] - M[i+1] ) * time);
|
|
mat.M[i+2] = (T)(M[i+2] + ( b.M[i+2] - M[i+2] ) * time);
|
|
mat.M[i+3] = (T)(M[i+3] + ( b.M[i+3] - M[i+3] ) * time);
|
|
}
|
|
return mat;
|
|
}
|
|
|
|
|
|
// returns transposed matrix
|
|
template <class T>
|
|
inline CMatrix4<T> CMatrix4<T>::getTransposed() const
|
|
{
|
|
CMatrix4<T> t ( EM4CONST_NOTHING );
|
|
getTransposed ( t );
|
|
return t;
|
|
}
|
|
|
|
|
|
// returns transposed matrix
|
|
template <class T>
|
|
inline void CMatrix4<T>::getTransposed( CMatrix4<T>& o ) const
|
|
{
|
|
o[ 0] = M[ 0];
|
|
o[ 1] = M[ 4];
|
|
o[ 2] = M[ 8];
|
|
o[ 3] = M[12];
|
|
|
|
o[ 4] = M[ 1];
|
|
o[ 5] = M[ 5];
|
|
o[ 6] = M[ 9];
|
|
o[ 7] = M[13];
|
|
|
|
o[ 8] = M[ 2];
|
|
o[ 9] = M[ 6];
|
|
o[10] = M[10];
|
|
o[11] = M[14];
|
|
|
|
o[12] = M[ 3];
|
|
o[13] = M[ 7];
|
|
o[14] = M[11];
|
|
o[15] = M[15];
|
|
#if defined ( USE_MATRIX_TEST )
|
|
o.definitelyIdentityMatrix=definitelyIdentityMatrix;
|
|
#endif
|
|
}
|
|
|
|
|
|
// used to scale <-1,-1><1,1> to viewport
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildNDCToDCMatrix( const core::rect<s32>& viewport, f32 zScale)
|
|
{
|
|
const f32 scaleX = (viewport.getWidth() - 0.75f ) * 0.5f;
|
|
const f32 scaleY = -(viewport.getHeight() - 0.75f ) * 0.5f;
|
|
|
|
const f32 dx = -0.5f + ( (viewport.UpperLeftCorner.X + viewport.LowerRightCorner.X ) * 0.5f );
|
|
const f32 dy = -0.5f + ( (viewport.UpperLeftCorner.Y + viewport.LowerRightCorner.Y ) * 0.5f );
|
|
|
|
makeIdentity();
|
|
M[12] = (T)dx;
|
|
M[13] = (T)dy;
|
|
return setScale(core::vector3d<T>((T)scaleX, (T)scaleY, (T)zScale));
|
|
}
|
|
|
|
//! Builds a matrix that rotates from one vector to another
|
|
/** \param from: vector to rotate from
|
|
\param to: vector to rotate to
|
|
|
|
http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToMatrix/index.htm
|
|
*/
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildRotateFromTo(const core::vector3df& from, const core::vector3df& to)
|
|
{
|
|
// unit vectors
|
|
core::vector3df f(from);
|
|
core::vector3df t(to);
|
|
f.normalize();
|
|
t.normalize();
|
|
|
|
// axis multiplication by sin
|
|
core::vector3df vs(t.crossProduct(f));
|
|
|
|
// axis of rotation
|
|
core::vector3df v(vs);
|
|
v.normalize();
|
|
|
|
// cosinus angle
|
|
T ca = f.dotProduct(t);
|
|
|
|
core::vector3df vt(v * (1 - ca));
|
|
|
|
M[0] = vt.X * v.X + ca;
|
|
M[5] = vt.Y * v.Y + ca;
|
|
M[10] = vt.Z * v.Z + ca;
|
|
|
|
vt.X *= v.Y;
|
|
vt.Z *= v.X;
|
|
vt.Y *= v.Z;
|
|
|
|
M[1] = vt.X - vs.Z;
|
|
M[2] = vt.Z + vs.Y;
|
|
M[3] = 0;
|
|
|
|
M[4] = vt.X + vs.Z;
|
|
M[6] = vt.Y - vs.X;
|
|
M[7] = 0;
|
|
|
|
M[8] = vt.Z - vs.Y;
|
|
M[9] = vt.Y + vs.X;
|
|
M[11] = 0;
|
|
|
|
M[12] = 0;
|
|
M[13] = 0;
|
|
M[14] = 0;
|
|
M[15] = 1;
|
|
|
|
return *this;
|
|
}
|
|
|
|
//! Builds a matrix which rotates a source vector to a look vector over an arbitrary axis
|
|
/** \param camPos: viewer position in world coord
|
|
\param center: object position in world-coord, rotation pivot
|
|
\param translation: object final translation from center
|
|
\param axis: axis to rotate about
|
|
\param from: source vector to rotate from
|
|
*/
|
|
template <class T>
|
|
inline void CMatrix4<T>::buildAxisAlignedBillboard(
|
|
const core::vector3df& camPos,
|
|
const core::vector3df& center,
|
|
const core::vector3df& translation,
|
|
const core::vector3df& axis,
|
|
const core::vector3df& from)
|
|
{
|
|
// axis of rotation
|
|
core::vector3df up = axis;
|
|
up.normalize();
|
|
const core::vector3df forward = (camPos - center).normalize();
|
|
const core::vector3df right = up.crossProduct(forward).normalize();
|
|
|
|
// correct look vector
|
|
const core::vector3df look = right.crossProduct(up);
|
|
|
|
// rotate from to
|
|
// axis multiplication by sin
|
|
const core::vector3df vs = look.crossProduct(from);
|
|
|
|
// cosinus angle
|
|
const f32 ca = from.dotProduct(look);
|
|
|
|
core::vector3df vt(up * (1.f - ca));
|
|
|
|
M[0] = static_cast<T>(vt.X * up.X + ca);
|
|
M[5] = static_cast<T>(vt.Y * up.Y + ca);
|
|
M[10] = static_cast<T>(vt.Z * up.Z + ca);
|
|
|
|
vt.X *= up.Y;
|
|
vt.Z *= up.X;
|
|
vt.Y *= up.Z;
|
|
|
|
M[1] = static_cast<T>(vt.X - vs.Z);
|
|
M[2] = static_cast<T>(vt.Z + vs.Y);
|
|
M[3] = 0;
|
|
|
|
M[4] = static_cast<T>(vt.X + vs.Z);
|
|
M[6] = static_cast<T>(vt.Y - vs.X);
|
|
M[7] = 0;
|
|
|
|
M[8] = static_cast<T>(vt.Z - vs.Y);
|
|
M[9] = static_cast<T>(vt.Y + vs.X);
|
|
M[11] = 0;
|
|
|
|
setRotationCenter(center, translation);
|
|
}
|
|
|
|
|
|
//! Builds a combined matrix which translate to a center before rotation and translate afterwards
|
|
template <class T>
|
|
inline void CMatrix4<T>::setRotationCenter(const core::vector3df& center, const core::vector3df& translation)
|
|
{
|
|
M[12] = -M[0]*center.X - M[4]*center.Y - M[8]*center.Z + (center.X - translation.X );
|
|
M[13] = -M[1]*center.X - M[5]*center.Y - M[9]*center.Z + (center.Y - translation.Y );
|
|
M[14] = -M[2]*center.X - M[6]*center.Y - M[10]*center.Z + (center.Z - translation.Z );
|
|
M[15] = (T) 1.0;
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
}
|
|
|
|
/*!
|
|
Generate texture coordinates as linear functions so that:
|
|
u = Ux*x + Uy*y + Uz*z + Uw
|
|
v = Vx*x + Vy*y + Vz*z + Vw
|
|
The matrix M for this case is:
|
|
Ux Vx 0 0
|
|
Uy Vy 0 0
|
|
Uz Vz 0 0
|
|
Uw Vw 0 0
|
|
*/
|
|
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::buildTextureTransform( f32 rotateRad,
|
|
const core::vector2df &rotatecenter,
|
|
const core::vector2df &translate,
|
|
const core::vector2df &scale)
|
|
{
|
|
const f32 c = cosf(rotateRad);
|
|
const f32 s = sinf(rotateRad);
|
|
|
|
M[0] = (T)(c * scale.X);
|
|
M[1] = (T)(s * scale.Y);
|
|
M[2] = 0;
|
|
M[3] = 0;
|
|
|
|
M[4] = (T)(-s * scale.X);
|
|
M[5] = (T)(c * scale.Y);
|
|
M[6] = 0;
|
|
M[7] = 0;
|
|
|
|
M[8] = (T)(c * scale.X * rotatecenter.X + -s * rotatecenter.Y + translate.X);
|
|
M[9] = (T)(s * scale.Y * rotatecenter.X + c * rotatecenter.Y + translate.Y);
|
|
M[10] = 1;
|
|
M[11] = 0;
|
|
|
|
M[12] = 0;
|
|
M[13] = 0;
|
|
M[14] = 0;
|
|
M[15] = 1;
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
// rotate about z axis, center ( 0.5, 0.5 )
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setTextureRotationCenter( f32 rotateRad )
|
|
{
|
|
const f32 c = cosf(rotateRad);
|
|
const f32 s = sinf(rotateRad);
|
|
M[0] = (T)c;
|
|
M[1] = (T)s;
|
|
|
|
M[4] = (T)-s;
|
|
M[5] = (T)c;
|
|
|
|
M[8] = (T)(0.5f * ( s - c) + 0.5f);
|
|
M[9] = (T)(-0.5f * ( s + c) + 0.5f);
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix = definitelyIdentityMatrix && (rotateRad==0.0f);
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setTextureTranslate ( f32 x, f32 y )
|
|
{
|
|
M[8] = (T)x;
|
|
M[9] = (T)y;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix = definitelyIdentityMatrix && (x==0.0f) && (y==0.0f);
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setTextureTranslateTransposed ( f32 x, f32 y )
|
|
{
|
|
M[2] = (T)x;
|
|
M[6] = (T)y;
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix = definitelyIdentityMatrix && (x==0.0f) && (y==0.0f) ;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setTextureScale ( f32 sx, f32 sy )
|
|
{
|
|
M[0] = (T)sx;
|
|
M[5] = (T)sy;
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix = definitelyIdentityMatrix && (sx==1.0f) && (sy==1.0f);
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setTextureScaleCenter( f32 sx, f32 sy )
|
|
{
|
|
M[0] = (T)sx;
|
|
M[5] = (T)sy;
|
|
M[8] = (T)(0.5f - 0.5f * sx);
|
|
M[9] = (T)(0.5f - 0.5f * sy);
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix = definitelyIdentityMatrix && (sx==1.0f) && (sy==1.0f);
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
// sets all matrix data members at once
|
|
template <class T>
|
|
inline CMatrix4<T>& CMatrix4<T>::setM(const T* data)
|
|
{
|
|
memcpy(M,data, 16*sizeof(T));
|
|
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix=false;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
|
|
// sets if the matrix is definitely identity matrix
|
|
template <class T>
|
|
inline void CMatrix4<T>::setDefinitelyIdentityMatrix( bool isDefinitelyIdentityMatrix)
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
definitelyIdentityMatrix = isDefinitelyIdentityMatrix;
|
|
#endif
|
|
}
|
|
|
|
|
|
// gets if the matrix is definitely identity matrix
|
|
template <class T>
|
|
inline bool CMatrix4<T>::getDefinitelyIdentityMatrix() const
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
return definitelyIdentityMatrix;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
|
|
//! Compare two matrices using the equal method
|
|
template <class T>
|
|
inline bool CMatrix4<T>::equals(const core::CMatrix4<T>& other, const T tolerance) const
|
|
{
|
|
#if defined ( USE_MATRIX_TEST )
|
|
if (definitelyIdentityMatrix && other.definitelyIdentityMatrix)
|
|
return true;
|
|
#endif
|
|
for (s32 i = 0; i < 16; ++i)
|
|
if (!core::equals(M[i],other.M[i], tolerance))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
// Multiply by scalar.
|
|
template <class T>
|
|
inline CMatrix4<T> operator*(const T scalar, const CMatrix4<T>& mat)
|
|
{
|
|
return mat*scalar;
|
|
}
|
|
|
|
|
|
//! Typedef for f32 matrix
|
|
typedef CMatrix4<f32> matrix4;
|
|
|
|
//! global const identity matrix
|
|
IRRLICHT_API extern const matrix4 IdentityMatrix;
|
|
|
|
} // end namespace core
|
|
} // end namespace irr
|
|
|
|
#endif
|
|
|