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Add Athena constructor to CMatrix3f

This commit is contained in:
Phillip Stephens 2015-10-25 13:20:12 -07:00
parent 2efe395f50 dbbd3c76ef
commit e1baf3631b
26 changed files with 263 additions and 138 deletions
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2
CMakeLists.txt
View File

@ -7,7 +7,7 @@ endif()
include_directories(include ${ATHENA_INCLUDE_DIR})
if(NOT WIN32)
#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse4.1")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse4.1 -std=c++14")
endif()
add_library(Math

64
include/CAABox.hpp
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@ -2,20 +2,34 @@
#define CAABOX_HPP
#include "CVector3f.hpp"
#include "CUnitVector.hpp"
#include "CTransform.hpp"
#include "CPlane.hpp"
#include "CLine.hpp"
#include "Math.hpp"
#include <Athena/IStreamReader.hpp>
namespace Zeus
{
class ZE_ALIGN(16) CAABox
class alignas(16) CAABox
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();
enum EBoxEdgeID
enum EBoxEdgeId
{
UnknownEdge0,
UnknownEdge1,
UnknownEdge2,
UnknownEdge3,
UnknownEdge4,
UnknownEdge5,
UnknownEdge6,
UnknownEdge7,
UnknownEdge8,
UnknownEdge9,
UnknownEdge10,
UnknownEdge11
};
enum EBoxFaceID
@ -113,6 +127,52 @@ public:
CVector3f volume() const {return (m_max - m_min) * 0.5f;}
inline CLine getEdge(EBoxEdgeId id)
{
switch (id)
{
case UnknownEdge0:
return CLine({m_min.x, m_min.y, m_min.z},
CUnitVector3f({m_min.x, m_min.y, m_max.z}));
case UnknownEdge1:
return CLine({m_max.x, m_min.y, m_min.z},
CUnitVector3f({m_min.x, m_min.y, m_min.z}));
case UnknownEdge2:
return CLine({m_max.x, m_min.y, m_max.z},
CUnitVector3f({m_max.x, m_min.y, m_max.z}));
case UnknownEdge3:
return CLine({m_min.x, m_min.y, m_max.z},
CUnitVector3f({m_max.x, m_min.y, m_max.z}));
case UnknownEdge4:
return CLine({m_max.x, m_max.y, m_min.z},
CUnitVector3f({m_max.x, m_max.y, m_max.z}));
case UnknownEdge5:
return CLine({m_min.x, m_max.y, m_min.z},
CUnitVector3f({m_max.x, m_max.y, m_min.z}));
case UnknownEdge6:
return CLine({m_min.x, m_max.y, m_max.z},
CUnitVector3f({m_min.x, m_max.y, m_min.z}));
case UnknownEdge7:
return CLine({m_max.x, m_max.y, m_max.z},
CUnitVector3f({m_min.x, m_max.y, m_max.z}));
case UnknownEdge8:
return CLine({m_min.x, m_max.y, m_max.z},
CUnitVector3f({m_min.x, m_min.y, m_max.z}));
case UnknownEdge9:
return CLine({m_min.x, m_max.y, m_min.z},
CUnitVector3f({m_min.x, m_min.y, m_min.z}));
case UnknownEdge10:
return CLine({m_max.x, m_max.y, m_min.z},
CUnitVector3f({m_max.x, m_min.y, m_min.z}));
case UnknownEdge11:
return CLine({m_max.x, m_max.y, m_max.z},
CUnitVector3f({m_max.x, m_min.y, m_max.z}));
default:
return CLine({m_min.x, m_min.y, m_min.z},
CUnitVector3f({m_min.x, m_min.y, m_max.z}));
}
}
inline CAABox getTransformedAABox(const CTransform& xfrm)
{
CAABox box;

21
include/CAxisAngle.hpp
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@ -3,24 +3,25 @@
#include "Global.hpp"
#include "CVector3f.hpp"
#include "CUnitVector.hpp"
namespace Zeus
{
struct ZE_ALIGN(16) CAxisAngle
struct alignas(16) CAxisAngle : CVector3f
{
ZE_DECLARE_ALIGNED_ALLOCATOR();
CAxisAngle()
: axis(CVector3f::skOne),
angle(0)
{}
CAxisAngle(const CVector3f& axis, float angle)
: axis(axis),
angle(angle)
CAxisAngle() = default;
CAxisAngle(const CUnitVector3f& axis, float angle)
: CVector3f(axis * angle)
{}
CVector3f axis;
float angle;
CAxisAngle(const CVector3f& axisAngle)
: CVector3f(axisAngle)
{}
float angle() { return magnitude(); }
const CVector3f& getVector() { return *this; }
};
}

2
include/CColor.hpp
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@ -22,7 +22,7 @@ typedef union
unsigned int rgba;
} RGBA32;
class ZE_ALIGN(16) CColor
class alignas(16) CColor
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();

32
include/CLine.hpp
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@ -0,0 +1,32 @@
#ifndef CLINE_HPP
#define CLINE_HPP
#include "Global.hpp"
#include "CVector3f.hpp"
#include "CUnitVector.hpp"
namespace Zeus
{
class alignas(16) CLine
{
public:
CLine(const CVector3f& a, const CUnitVector3f& b)
{
CVector3f ab = (b - a).normalized();
start = a;
if (ab.x != 0.0f || ab.y != 0.0f || ab.z != 0.0f)
normal = ab;
else
normal = CVector3f::skZero;
end = b;
}
CVector3f start;
CVector3f normal;
CUnitVector3f end;
};
}
#endif

23
include/CMatrix3f.hpp
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@ -9,7 +9,7 @@
namespace Zeus
{
class CQuaternion;
class ZE_ALIGN(16) CMatrix3f
class alignas(16) CMatrix3f
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();
@ -46,6 +46,18 @@ public:
#if __SSE__
CMatrix3f(const __m128& r0, const __m128& r1, const __m128& r2)
{vec[0].mVec128 = r0; vec[1].mVec128 = r1; vec[2].mVec128 = r2;}
#endif
#if ZE_ATHENA_TYPES
CMatrix3f(const atVec4f& r0, const atVec4f& r1, const atVec4f& r2)
{
#if __SSE__
vec[0].mVec128 = r0.mVec128; vec[1].mVec128 = r1.mVec128; vec[2].mVec128 = r2.mVec128;
#else
vec[0].x = r0.vec[0]; vec[0].y = r0.vec[1]; vec[0].z = r0.vec[2];
vec[1].x = r1.vec[0]; vec[1].y = r1.vec[1]; vec[1].z = r1.vec[2];
vec[2].x = r2.vec[0]; vec[2].y = r2.vec[1]; vec[2].z = r2.vec[2];
#endif
}
#endif
CMatrix3f(const CVector3f& axis, float angle);
CMatrix3f(const CQuaternion& quat);
@ -87,6 +99,15 @@ public:
return vec[i];
}
inline const CMatrix3f orthonormalized()
{
CMatrix3f ret;
ret.vec[0] = vec[0].normalized();
ret.vec[1] = vec[2].normalized();
ret.vec[2] = vec[1].normalized();
return ret;
}
static const CMatrix3f skIdentityMatrix3f;
void transpose();

2
include/CMatrix4f.hpp
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@ -6,7 +6,7 @@
namespace Zeus
{
class ZE_ALIGN(16) CMatrix4f
class alignas(16) CMatrix4f
{
public:
static const CMatrix4f skIdentityMatrix4f;

2
include/COBBox.hpp
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@ -7,7 +7,7 @@
namespace Zeus
{
class ZE_ALIGN(16) COBBox
class alignas(16) COBBox
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();

3
include/CPlane.hpp
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@ -7,7 +7,7 @@
namespace Zeus
{
class ZE_ALIGN(16) CPlane
class alignas(16) CPlane
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();
@ -43,7 +43,6 @@ public:
{
float nd = d;
float mag = vec.magnitude();
assert(mag != 0.0f);
mag = 1.0 / mag;
vec *= mag;
d = nd * mag;

2
include/CProjection.hpp
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@ -30,7 +30,7 @@ struct SProjPersp
};
extern const SProjOrtho kOrthoIdentity;
class ZE_ALIGN(16) CProjection
class alignas(16) CProjection
{
void _updateCachedMatrix();
public:

2
include/CQuaternion.hpp
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@ -10,7 +10,7 @@
namespace Zeus
{
class ZE_ALIGN(16) CQuaternion
class alignas(16) CQuaternion
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();

2
include/CRelAngle.hpp
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@ -9,7 +9,7 @@ namespace Zeus
/**
* @brief The CRelAngle class represents relative angles in radians
*/
class ZE_ALIGN(16) CRelAngle : public CVector3f
class alignas(16) CRelAngle : public CVector3f
{
public:
/**

2
include/CSphere.hpp
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@ -5,7 +5,7 @@
namespace Zeus
{
class ZE_ALIGN(16) CSphere
class alignas(16) CSphere
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();

2
include/CTransform.hpp
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@ -9,7 +9,7 @@
namespace Zeus
{
class ZE_ALIGN(16) CTransform
class alignas(16) CTransform
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();

11
include/CUnitVector.hpp
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@ -5,15 +5,20 @@
namespace Zeus
{
class ZE_ALIGN(16) CUnitVector3f : public CVector3f
class alignas(16) CUnitVector3f : public CVector3f
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();
CUnitVector3f(const CVector3f& vec)
CUnitVector3f()
: CVector3f(0, 1, 0)
{
}
CUnitVector3f(const CVector3f& vec, bool doNormalize = false)
: CVector3f(vec)
{
if (canBeNormalized())
if (doNormalize && canBeNormalized())
normalize();
}
};

32
include/CVector2f.hpp
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@ -2,6 +2,7 @@
#define CVECTOR2f_HPP
#include "Global.hpp"
#include "Math.hpp"
#include "TVectorUnion.hpp"
#include <Athena/IStreamReader.hpp>
@ -10,7 +11,7 @@
namespace Zeus
{
class ZE_ALIGN(16) CVector2f
class alignas(16) CVector2f
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();
@ -199,25 +200,16 @@ class ZE_ALIGN(16) CVector2f
inline void normalize()
{
float mag = magnitude();
if (mag > 1e-6f)
{
mag = 1.0 / mag;
*this *= mag;
}
else
zeroOut();
}
inline CVector2f normalized() const
{
float mag = magnitude();
if (mag > 1e-6f)
{
mag = 1.0 / mag;
return *this * mag;
}
return {0, 0};
}
inline float cross(const CVector2f& rhs) const
{
@ -252,9 +244,7 @@ class ZE_ALIGN(16) CVector2f
#endif
}
inline float magnitude() const
{
return sqrtf(magSquared());
}
{ return Math::sqrtF(magSquared()); }
inline void zeroOut()
{
@ -287,15 +277,19 @@ class ZE_ALIGN(16) CVector2f
}
static CVector2f slerp(const CVector2f& a, const CVector2f& b, float t);
inline bool isNormalized(float thresh = 1e-5f) const
inline bool canBeNormalized() const
{
return (fabs(1.0f - magSquared()) <= thresh);
const float epsilon = 1.1920929e-7f;
if (fabs(x) >= epsilon || fabs(y) >= epsilon)
return true;
return false;
}
inline bool canBeNormalized()
{
return !isNormalized();
}
inline bool isNormalized() const
{ return !canBeNormalized(); }
inline bool isZero() const
{ return magSquared() <= 1.1920929e-7f; }
inline float& operator[](size_t idx) {return (&x)[idx];}
inline const float& operator[](size_t idx) const {return (&x)[idx];}

11
include/CVector3d.hpp
View File

@ -8,7 +8,7 @@
namespace Zeus
{
class ZE_ALIGN(16) CVector3d
class alignas(16) CVector3d
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();
@ -23,13 +23,14 @@ public:
#endif
#if ZE_ATHENA_TYPES
CVector3d(const atVec3d& vec)
#if __SSE__
: CVector3d(vec.mVec128){}
#else
{
#if __SSE__
mVec128[0] = vec.mVec128[0];
mVec128[1] = vec.mVec128[1];
#else
x = v[0], y = v[1], z = v[2], v[3] = 0.0f;
}
#endif
}
#endif
CVector3d(double xyz) { splat(xyz); }

71
include/CVector3f.hpp
View File

@ -2,6 +2,7 @@
#define CVECTOR3F_HPP
#include "Global.hpp"
#include "Math.hpp"
#include "CVector2f.hpp"
#include "TVectorUnion.hpp"
#include <Athena/IStreamReader.hpp>
@ -10,26 +11,18 @@
namespace Zeus
{
class ZE_ALIGN(16) CVector3f
class alignas(16) CVector3f
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();
inline CVector3f() {zeroOut();}
#if __SSE__
#if __SSE__ || __GEKKO_PS__
CVector3f(const __m128& mVec128) : mVec128(mVec128) {v[3] = 0.0f;}
#endif
#if ZE_ATHENA_TYPES
CVector3f(const atVec3f& vec)
#if __SSE__
: mVec128(vec.mVec128){}
#else
{
x = vec.vec[0], y = vec.vec[1], z = vec.vec[2], v[3] = 0.0f;
}
#endif
CVector3f(const atVec4f& vec)
#if __SSE__
#if __SSE__ || __GEKKO_PS__
: mVec128(vec.mVec128){}
#else
{
@ -62,6 +55,8 @@ public:
{
#if __SSE__
return CVector3f(_mm_add_ps(mVec128, rhs.mVec128));
#elif __GEKKO_PS__
return CVector3f(__mm_gekko_add_ps(mVec128, rhs.mVec128));
#else
return CVector3f(x + rhs.x, y + rhs.y, z + rhs.z);
#endif
@ -78,6 +73,8 @@ public:
{
#if __SSE__
return CVector3f(_mm_sub_ps(_mm_xor_ps(mVec128, mVec128), mVec128));
#elif __GEKKO_PS__
return CVector3f(_mm_gekko_neg_ps(mVec128));
#else
return CVector3f(-x, -y, -z);
#endif
@ -109,27 +106,39 @@ public:
}
inline CVector3f operator-(float val) const
{
#if __SSE__
#if __SSE__ || __GEKKO_PS__
TVectorUnion splat = {{val, val, val, 0.0}};
#endif
#if __SSE__
return CVector3f(_mm_sub_ps(mVec128, splat.mVec128));
#elif __GEKKO_PS__
return CVector3f(_mm_gekko_sub_ps(mVec128, splat.mVec128));
#else
return CVector3f(x - val, y - val, z - val);
#endif
}
inline CVector3f operator*(float val) const
{
#if __SSE__
#if __SSE__ || __GEKKO_PS__
TVectorUnion splat = {{val, val, val, 0.0}};
#endif
#if __SSE__
return CVector3f(_mm_mul_ps(mVec128, splat.mVec128));
#elif __GEKKO_PS__
return CVector3f(_mm_gekko_mul_ps(mVec128, splat.mVec128));
#else
return CVector3f(x * val, y * val, z * val);
#endif
}
inline CVector3f operator/(float val) const
{
#if __SSE__
#if __SSE__ || __GEKKO_PS__
TVectorUnion splat = {{val, val, val, 0.0}};
#endif
#if __SSE__
return CVector3f(_mm_div_ps(mVec128, splat.mVec128));
#elif __GEKKO_PS__
return CVector3f(_mm_gekko_div_ps(mVec128, splat.mVec128));
#else
return CVector3f(x / val, y / val, z / val);
#endif
@ -138,6 +147,8 @@ public:
{
#if __SSE__
mVec128 = _mm_add_ps(mVec128, rhs.mVec128);
#elif __GEKKO_PS__
mVec128 = _mm_gekko_add_ps(mVec128, rhs.mVec128);
#else
x += rhs.x; y += rhs.y; z += rhs.z;
#endif
@ -173,24 +184,15 @@ public:
inline void normalize()
{
float mag = magnitude();
if (mag > 1e-6f)
{
mag = 1.0 / mag;
*this *= mag;
}
else
zeroOut();
}
inline CVector3f normalized() const
{
float mag = magnitude();
if (mag > 1e-6f)
{
mag = 1.0 / mag;
return *this * mag;
}
return {0, 0, 0};
}
inline CVector3f cross(const CVector3f& rhs) const
{ return CVector3f(y * rhs.z - z * rhs.y, z * rhs.x - x * rhs.z, x * rhs.y - y * rhs.x); }
@ -223,7 +225,7 @@ public:
#endif
}
inline float magnitude() const
{ return sqrtf(magSquared()); }
{ return Math::sqrtF(magSquared()); }
inline void zeroOut()
{
@ -253,19 +255,24 @@ public:
static CVector3f slerp(const CVector3f& a, const CVector3f& b, float t);
//static CVector3f slerp(const CVector3f& a, const CVector3f& b, const CRelAngle& angle);
inline bool isNormalized(float thresh = 1e-5f) const
{ return (fabs(1.0f - magSquared()) <= thresh); }
inline bool canBeNormalized() const
{
const float epsilon = 1.1920929e-7f;
if (fabs(x) >= epsilon || fabs(y) >= epsilon || fabs(z) >= epsilon)
return true;
return false;
}
inline bool canBeNormalized()
{ return !isNormalized(); }
inline bool isNormalized() const
{ return !canBeNormalized(); }
inline bool isZero() const
{ return magSquared() <= 1e-7; }
{ return magSquared() <= 1.1920929e-7f; }
inline void scaleToLength(float newLength)
{
float length = magSquared();
if (length < 1e-6f)
if (length < 1.1920929e-7f)
{
x = newLength, y = 0.f, z = 0.f;
return;
@ -283,7 +290,7 @@ public:
return v;
}
inline bool isEqu(const CVector3f& other, float epsilon=1e-7f)
inline bool isEqu(const CVector3f& other, float epsilon=1.1920929e-7f)
{
CVector3f diffVec = other - *this;
return (diffVec.x <= epsilon && diffVec.y <= epsilon && diffVec.z <= epsilon);
@ -299,6 +306,8 @@ public:
float v[4];
#if __SSE__
__m128 mVec128;
#elif __GEKKO_PS__
ps128_t mVec128;
#endif
};

24
include/CVector4f.hpp
View File

@ -11,7 +11,7 @@
namespace Zeus
{
class ZE_ALIGN(16) CVector4f
class alignas(16) CVector4f
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();
@ -224,24 +224,15 @@ class ZE_ALIGN(16) CVector4f
inline void normalize()
{
float mag = magnitude();
if (mag > 1e-6f)
{
mag = 1.0 / mag;
*this *= mag;
}
else
zeroOut();
}
inline CVector4f normalized() const
{
float mag = magnitude();
if (mag > 1e-6f)
{
mag = 1.0 / mag;
return *this * mag;
}
return {0, 0, 0, 0};
}
inline float dot(const CVector4f& rhs) const
{
@ -304,15 +295,16 @@ class ZE_ALIGN(16) CVector4f
return lerp(a, b, t).normalized();
}
inline bool isNormalized(float thresh = 1e-5f) const
inline bool canBeNormalized() const
{
return (fabs(1.0f - magSquared()) <= thresh);
const float epsilon = 1.1920929e-7f;
if (fabs(x) >= epsilon || fabs(y) >= epsilon || fabs(z) >= epsilon || fabs(w) >= epsilon)
return true;
return false;
}
inline bool canBeNormalized()
{
return !isNormalized();
}
inline bool isNormalized() const
{ return !canBeNormalized(); }
inline float& operator[](size_t idx) {return (&x)[idx];}
inline const float& operator[](size_t idx) const {return (&x)[idx];}

16
include/Global.hpp
View File

@ -7,20 +7,18 @@
#if __SSE__
# include <immintrin.h>
# ifdef _MSC_VER
# define ZE_ALIGN(x) __declspec(align(x))
# else
# ifndef _MSC_VER
# include <mm_malloc.h>
# define ZE_ALIGN(x) alignas(16)
# endif
# define ZE_SHUFFLE(x,y,z,w) ((w)<<6 | (z)<<4 | (y)<<2 | (x))
# define zeAlloc(sz, align) _mm_malloc(sz, align)
# define zeFree(ptr) _mm_free(ptr)
#else
# define ZE_ALIGN(x)
#elif GEKKO
# include <ps_intrins.h>
# define zeAlloc(sz, align) _ps_malloc(sz, align)
# define zeFree(ptr) _ps_free(ptr)
#endif
#if __SSE__
#if __SSE__ || __GEKKO_PS__
# define ZE_DECLARE_ALIGNED_ALLOCATOR() \
inline void* operator new(size_t sizeInBytes) { return zeAlloc(sizeInBytes,16); } \
inline void operator delete(void* ptr) { zeFree(ptr); } \
@ -45,6 +43,8 @@
# else
# define zeCastiTo128f(a) ((__m128) (a))
# endif
#elif __GEKKO_PS__
#endif
inline int rotr(int x, int n) { return ((x >> n) | (x << (32 - n))); }

14
include/Math.hpp
View File

@ -10,11 +10,10 @@
#include <math.h>
#include <algorithm>
#include "CVector3f.hpp"
#include "CTransform.hpp"
namespace Zeus
{
class CVector3f;
class CTransform;
namespace Math
{
template<typename T>
@ -29,13 +28,12 @@ namespace Math
extern const CVector3f kRadToDegVec;
extern const CVector3f kDegToRadVec;
inline CVector3f radToDeg(CVector3f rad) {return rad * kRadToDegVec;}
inline CVector3f degToRad(CVector3f deg) {return deg * kDegToRadVec;}
CVector3f radToDeg(const CVector3f& rad);
CVector3f degToRad(const CVector3f& deg);
extern const CVector3f kUpVec;
CTransform lookAt(const CVector3f& pos, const CVector3f& lookPos, const CVector3f& up=kUpVec);
inline CVector3f baryToWorld(const CVector3f& p0, const CVector3f& p1, const CVector3f& p2, const CVector3f& bary)
{ return bary.x * p0 + bary.y * p1 + bary.z * p2; }
CVector3f baryToWorld(const CVector3f& p0, const CVector3f& p1, const CVector3f& p2, const CVector3f& bary);
CVector3f getBezierPoint(const CVector3f& a, const CVector3f& b,
const CVector3f& c, const CVector3f& d, float t);
@ -63,7 +61,7 @@ namespace Math
// Since round(double) doesn't exist in some <cmath> implementations
// we'll define our own
inline double round(double val) { return (val < 0.0 ? ceilingF(val - 0.5) : floorF(val + 0.5)); }
inline double powD(float a, float b) { return exp(a * log(b)); }
inline double powD(float a, float b) { return exp(b * log(a)); }
double sqrtD(double val);
inline double invSqrtD(double val) { return 1.0 / sqrtD(val); }

17
src/CQuaternion.cpp
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@ -136,18 +136,19 @@ CQuaternion CQuaternion::inverse() const
CAxisAngle CQuaternion::toAxisAngle()
{
CAxisAngle ret;
ret.angle = acosf(r);
// CAxisAngle ret;
// ret.angle = acosf(r);
float thetaInv = 1.0f/sinf(ret.angle);
// float thetaInv = 1.0f/sinf(ret.angle);
ret.axis.x = v.x * thetaInv;
ret.axis.y = v.y * thetaInv;
ret.axis.z = v.z * thetaInv;
// ret.axis.x = v.x * thetaInv;
// ret.axis.y = v.y * thetaInv;
// ret.axis.z = v.z * thetaInv;
ret.angle *= 2;
// ret.angle *= 2;
return ret;
// return ret;
return CAxisAngle();
}
CQuaternion CQuaternion::log() const

3
src/CVector2f.cpp
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@ -18,7 +18,8 @@ float CVector2f::getAngleDiff(const CVector2f& a, const CVector2f& b)
if (!mag1 || !mag2)
return 0;
float theta = acosf(a.dot(b) / (mag1 * mag2));
float dot = a.dot(b);
float theta = Math::arcCosineR(dot / (mag1 * mag2));
return theta;
}

3
src/CVector3f.cpp
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@ -18,7 +18,8 @@ float CVector3f::getAngleDiff(const CVector3f& a, const CVector3f& b)
if (!mag1 || !mag2)
return 0;
float theta = acosf(a.dot(b) / (mag1 * mag2));
float dot = a.dot(b);
float theta = Math::arcCosineR(dot / (mag1 * mag2));
return theta;
}

9
src/Math.cpp
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@ -1,4 +1,6 @@
#include "Math.hpp"
#include "CTransform.hpp"
#include "CVector3f.hpp"
namespace Zeus
{
@ -239,5 +241,12 @@ CVector3f getRoundCatmullRomSplinePoint(const CVector3f& a, const CVector3f& b,
return getCatmullRomSplinePoint(b, c, bVelocity * cbDistance, cVelocity * cbDistance, t);
}
CVector3f baryToWorld(const CVector3f& p0, const CVector3f& p1, const CVector3f& p2, const CVector3f& bary)
{ return bary.x * p0 + bary.y * p1 + bary.z * p2; }
CVector3f radToDeg(const CVector3f& rad) {return rad * kRadToDegVec;}
CVector3f degToRad(const CVector3f& deg) {return deg * kDegToRadVec;}
}
}

1
test/main.cpp
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@ -40,6 +40,7 @@ int main()
std::cout << Math::powF(6.66663489, 2) << std::endl;
std::cout << Math::invSqrtF(1) << std::endl;
std::cout << Math::floorPowerOfTwo(256) << std::endl;
CLine line({-89.120926, 59.328712, 3.265882}, CUnitVector3f({-90.120926, 59.328712, 3.265882}));
return 0;
}