diff options
Diffstat (limited to 'Userland/Libraries/LibGfx/Matrix4x4.h')
| -rw-r--r-- | Userland/Libraries/LibGfx/Matrix4x4.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Userland/Libraries/LibGfx/Matrix4x4.h b/Userland/Libraries/LibGfx/Matrix4x4.h index 16f927d3ce..c1ebdfaaa5 100644 --- a/Userland/Libraries/LibGfx/Matrix4x4.h +++ b/Userland/Libraries/LibGfx/Matrix4x4.h @@ -8,6 +8,7 @@ #include <LibGfx/Matrix.h> #include <LibGfx/Vector3.h> +#include <LibGfx/Vector4.h> #include <math.h> namespace Gfx { @@ -46,6 +47,15 @@ public: return product; } + Vector4<T> operator*(const Vector4<T>& v) const + { + return Vector4<T>( + v.x() * m_elements[0][0] + v.y() * m_elements[1][0] + v.z() * m_elements[2][0] + v.w() * m_elements[3][0], + v.x() * m_elements[0][1] + v.y() * m_elements[1][1] + v.z() * m_elements[2][1] + v.w() * m_elements[3][1], + v.x() * m_elements[0][2] + v.y() * m_elements[1][2] + v.z() * m_elements[2][2] + v.w() * m_elements[3][2], + v.x() * m_elements[0][3] + v.y() * m_elements[1][3] + v.z() * m_elements[2][3] + v.w() * m_elements[3][3]); + } + Vector3<T> transform_point(const Vector3<T>& p) const { return Vector3<T>( @@ -54,6 +64,15 @@ public: p.x() * m_elements[0][2] + p.y() * m_elements[1][2] + p.z() * m_elements[2][2] + m_elements[3][2]); } + static Matrix4x4 identity() + { + return Matrix4x4( + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1); + } + static Matrix4x4 translate(const Vector3<T>& p) { return Matrix4x4( |