CMCore/inc/hgl/math/Matrix.h

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#ifndef HGL_ALGORITHM_MATH_VECTOR_MATRIX_INCLUDE
#define HGL_ALGORITHM_MATH_VECTOR_MATRIX_INCLUDE
#include<hgl/math/Vector.h>
#include<hgl/TypeFunc.h>
//注GLM/CML(OpenGLMode)是列矩阵,计算坐标matrix*pos
// 而MGL是行矩阵需要反过来pos*matrix
namespace hgl
{
using Matrix3f=float3x3;
using Matrix4f=float4x4;
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using Matrix3x4f=float3x4;
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inline Matrix4f identity()
{
return Matrix4f::identity;
}
inline Matrix4f inverse(const Matrix4f &m)
{
return m.Inverted();
}
/**
*
* @param left
* @param right
* @param top
* @param bottom
* @param znear z值
* @param zfar z值
*/
Matrix4f ortho( float left,
float right,
float bottom,
float top,
float znear,
float zfar );
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/**
*
* @param width
* @param height
* @param znear z值
* @param zfar z值
*/
Matrix4f ortho(float width,float height,float znear,float zfar);
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/**
*
* @param width
* @param height
*/
Matrix4f ortho(float width,float height);
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/**
*
* @param aspect_ratio
* @param field_of_view
* @param znear
* @param zfar
*/
Matrix4f perspective( float field_of_view,
float aspect_ratio,
float znear,
float zfar);
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/**
* lookat变换矩阵
* @param eye
* @param target
* @param up
*/
Matrix4f lookat(const Vector4f &eye,const Vector4f &target,const Vector4f &up);
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inline Matrix4f translate(const Vector3f &v)
{
return Matrix4f::Translate(v);
}
inline Matrix4f translate(float x,float y,float z)
{
return Matrix4f::Translate(x,y,z);
}
inline Matrix4f translate(float x,float y)
{
return Matrix4f::Translate(x,y,1.0f);
}
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inline Matrix4f scale(const Vector3f &v)
{
return Matrix4f::Scale(v,Vector3f::zero);
}
inline Matrix4f scale(float x,float y,float z)
{
return Matrix4f::Scale(Vector3f(x,y,z),Vector3f::zero);
}
inline Matrix4f scale(float x,float y)
{
return Matrix4f::Scale(Vector3f(x,y,1.0f),Vector3f::zero);
}
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inline Matrix4f scale(float s)
{
return Matrix4f::Scale(Vector3f(s,s,s),Vector3f::zero);
}
inline Matrix4f rotate(float angle,const Vector3f &axis)
{
return Matrix4f::RotateAxisAngle(axis.Normalized(),angle);
}
inline Matrix4f rotate(float angle,float x,float y,float z)
{
return rotate(angle,Vector3f(x,y,z));
}
inline Matrix4f rotate(float angle,float x,float y)
{
return rotate(angle,Vector3f(x,y,1.0f));
}
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inline Matrix4f rotate(float angle,const Vector4f &axis)
{
return rotate(angle,Vector3f(axis.x,axis.y,axis.z));
}
inline Vector3f rotate(const Vector3f &v3f,float angle,const Vector3f &axis)
{
Vector4f result=rotate(angle,axis)*Vector4f(v3f,1.0f);
return result.xyz();
}
}//namespace hgl
#endif//HGL_ALGORITHM_MATH_VECTOR_MATRIX_INCLUDE