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LibGfx: Add some missing operators to Vector3 Vector4 and Matrix4x4

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Stephan Unverwerth 2021-04-18 16:25:25 +02:00 • committed by Andreas Kling
parent 0c5d61ae88
commit 09f850728a
3 changed files with 53 additions and 0 deletions
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19
Userland/Libraries/LibGfx/Matrix4x4.h
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@ -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(