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Implement D3DOrtho

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josh
2024-01-12 10:27:36 -05:00
parent 32046d88cd
commit 1eae732718
4 changed files with 109 additions and 18 deletions
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45
include/J3ML/LinearAlgebra/Matrix4x4.h
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@@ -6,18 +6,7 @@
namespace LinearAlgebra {
template<typename Matrix>
void SetMatrixRotatePart(Matrix &m, const Quaternion& q)
{
// See e.g. http://www.geometrictools.com/Documentation/LinearAlgebraicQuaternions.pdf .
const float x = q.x;
const float y = q.y;
const float z = q.z;
const float w = q.w;
m[0][0] = 1 - 2*(y*y + z*z); m[0][1] = 2*(x*y - z*w); m[0][2] = 2*(x*z + y*w);
m[1][0] = 2*(x*y + z*w); m[1][1] = 1 - 2*(x*x + z*z); m[1][2] = 2*(y*z - x*w);
m[2][0] = 2*(x*z - y*w); m[2][1] = 2*(y*z + x*w); m[2][2] = 1 - 2*(x*x + y*y);
}
@@ -64,10 +53,17 @@ namespace LinearAlgebra {
explicit Matrix4x4(const Quaternion& orientation);
Vector3 GetTranslatePart() const;
Matrix3x3 GetRotatePart() const
{
return Matrix3x3 {
At(0, 0), At(0, 1), At(0, 2),
At(1, 0), At(1, 1), At(1, 2),
At(2, 0), At(2, 1), At(2, 2)
};
}
void SetTranslatePart(float translateX, float translateY, float translateZ);
void SetTranslatePart(const Vector3& offset);
void SetRotatePart(const Quaternion& q);
@@ -104,17 +100,32 @@ namespace LinearAlgebra {
Vector2 Transform(const Vector2& rhs) const;
Vector3 Transform(const Vector3& rhs) const;
Vector4 Transform(const Vector4& rhs) const;
Matrix4x4 D3DOrthoProjLH(float n, float f, float h, float v)
{
}
static Matrix4x4 D3DOrthoProjLH(float nearPlane, float farPlane, float hViewportSize, float vViewportSize);
static Matrix4x4 D3DOrthoProjRH(float nearPlane, float farPlane, float hViewportSize, float vViewportSize);
static Matrix4x4 D3DPerspProjLH(float nearPlane, float farPlane, float hViewportSize, float vViewportSize);
static Matrix4x4 D3DPerspProjRH(float nearPlane, float farPlane, float hViewportSize, float vViewportSize);
static Matrix4x4 OpenGLOrthoProjLH(float nearPlane, float farPlane, float hViewportSize, float vViewportSize);
static Matrix4x4 OpenGLOrthoProjRH(float nearPlane, float farPlane, float hViewportSize, float vViewportSize);
static Matrix4x4 OpenGLPerspProjLH(float nearPlane, float farPlane, float hViewportSize, float vViewportSize);
static Matrix4x4 OpenGLPerspProjRH(float nearPlane, float farPlane, float hViewportSize, float vViewportSize);
Vector3 GetTranslationComponent() const;
Matrix3x3 GetRotationComponent() const;
Vector4 GetRow() const;
Vector4 GetColumn() const;
Vector4 operator[](int row)
{
return Vector4{elems[row][0], elems[row][1], elems[row][2], elems[row][3]};
}
protected:
float elems[4][4];
void SetMatrixRotatePart(Matrix4x4 &m, const Quaternion &q);
};
}