feat: implement lighting

1 files changed, 7 insertions, 0 deletions

diff --git a/src/vector.rs b/src/vector.rs
index d4e57cc..c4ddaab 100644
--- a/src/vector.rs
+++ b/src/vector.rs
@@ -58,6 +58,13 @@ impl ops::Div<f32> for Vector {
     }
 }
 
+impl ops::Mul<Vector> for Vector {
+    type Output = f32;
+    fn mul(self, rhs: Vector) -> Self::Output {
+        self.x * rhs.x + self.y * rhs.y + self.z * rhs.z
+    }
+}
+
 impl Vector {
     pub fn magnitude_squared(self) -> f32 {
         self.x * self.x + self.y * self.y + self.z * self.z