From 7c91654c0bc14665db9db3fbad63dd159041594e Mon Sep 17 00:00:00 2001
From: Dave Pagurek <davepagurek@gmail.com>
Date: Sat, 25 Nov 2023 10:49:06 -0500
Subject: [PATCH] Fix rounding of values close to 0 when computing smooth
 normals

---
 src/webgl/p5.Geometry.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/webgl/p5.Geometry.js b/src/webgl/p5.Geometry.js
index 80324f86d3..17f2fffe82 100644
--- a/src/webgl/p5.Geometry.js
+++ b/src/webgl/p5.Geometry.js
@@ -291,8 +291,10 @@ p5.Geometry = class Geometry {
       const vertexIndices = {};
       const uniqueVertices = [];
 
+      const power = Math.pow(10, roundToPrecision);
+      const rounded = val => Math.round(val * power) / power;
       const getKey = vert =>
-        `${vert.x.toFixed(roundToPrecision)},${vert.y.toFixed(roundToPrecision)},${vert.z.toFixed(roundToPrecision)}`;
+        `${rounded(vert.x)},${rounded(vert.y)},${rounded(vert.z)}`;
 
       // loop through each vertex and add uniqueVertices
       for (let i = 0; i < vertices.length; i++) {