From a6cdb1c2c892bab1bc2533d3b143f408723af151 Mon Sep 17 00:00:00 2001
From: Justin Lin <justin.sdk@gmail.com>
Date: Wed, 13 Apr 2022 10:09:11 +0800
Subject: [PATCH] refactor: remove var

---
 src/_impl/_contours_impl.scad | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/_impl/_contours_impl.scad b/src/_impl/_contours_impl.scad
index e06e3553..81199ea8 100644
--- a/src/_impl/_contours_impl.scad
+++ b/src/_impl/_contours_impl.scad
@@ -1,4 +1,4 @@
-function _lerp(v1, v2, amt) = let(v = v2 - v1) v1 + v * amt;
+function _lerp(v1, v2, amt) = v1 + (v2 - v1) * amt;
 
 function interpolated_pt(p0, p1, threshold) = 
    let(p = _lerp(p0, p1, (threshold - p0.z) / (p1.z - p0.z)))