From fa931762847d46baf8eb3ff2f53cab74ca34ef0e Mon Sep 17 00:00:00 2001
From: ladevieq <ladevie.quentin@gmail.com>
Date: Sun, 20 Dec 2020 14:52:47 +0100
Subject: Vec3 utility function lerp

---
 src/vec3.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'src/vec3.cpp')

diff --git a/src/vec3.cpp b/src/vec3.cpp
index 28523ab..8164aeb 100644
--- a/src/vec3.cpp
+++ b/src/vec3.cpp
@@ -57,9 +57,9 @@ vec3 vec3::unit() {
     return *this / length();
 }
 
-// vec3 lerp(vec3 u, vec3 v, double t) {
-//     return (1.0 - t) 
-// }
+vec3 lerp(vec3 u, vec3 v, double t) {
+    return (1.0 - t) * u + t * v;
+}
 
 vec3 operator+(vec3 u, vec3 v) {
     return vec3(u.x + v.x, u.y + v.y, u.z + v.z);
-- 
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