Implement Mat4x4::LookAt

2024-02-01 17:27:32 -05:00
parent c858d3b889
commit 69ca7c5c05
2 changed files with 40 additions and 0 deletions
--- a/src/J3ML/LinearAlgebra/Matrix4x4.cpp
+++ b/src/J3ML/LinearAlgebra/Matrix4x4.cpp
@@ -419,4 +419,13 @@ namespace LinearAlgebra {
    Vector3 Matrix4x4::GetTranslatePart() const {
        return GetColumn3(3);
    }
+
+    Matrix4x4
+    Matrix4x4::LookAt(const Vector3 &localFwd, const Vector3 &targetDir, const Vector3 &localUp, const Vector3 &worldUp) {
+        Matrix4x4 m;
+        m.Set3x3Part(Matrix3x3::LookAt(localFwd, targetDir, localUp, worldUp));
+        m.SetTranslatePart(0,0,0);
+        m.SetRow(3, 0,0,0,1);
+        return m;
+    }
 }