From 25d5416102ad508903c094d0ac4d1691e9ce7e3d Mon Sep 17 00:00:00 2001
From: Niels Joubert <njoubert@gmail.com>
Date: Fri, 8 May 2015 20:51:51 -0700
Subject: [PATCH 1/2] Lerping Color Correctly

---
 lib/p5.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/p5.js b/lib/p5.js
index 1395b0a481..c9b93bb53d 100644
--- a/lib/p5.js
+++ b/lib/p5.js
@@ -2103,17 +2103,17 @@ amdclean['colorcreating_reading'] = function (require, core, p5Color) {
     if (c1 instanceof Array) {
       var c = [];
       for (var i = 0; i < c1.length; i++) {
-        c.push(p5.prototype.lerp(c1[i], c2[i], amt));
+        c.push(Math.sqrt(p5.prototype.lerp(c1[i]*c1[i], c2[i]*c2[i], amt)));
       }
       return c;
     } else if (c1 instanceof p5.Color) {
       var pc = [];
       for (var j = 0; j < 4; j++) {
-        pc.push(p5.prototype.lerp(c1.rgba[j], c2.rgba[j], amt));
+        pc.push(Math.sqrt(p5.prototype.lerp(c1.rgba[j]*c1.rgba[j], c2.rgba[j]*c2.rgba[j], amt)));
       }
       return new p5.Color(this, pc);
     } else {
-      return p5.prototype.lerp(c1, c2, amt);
+      return Math.sqrt(p5.prototype.lerp(c1*c1, c2*c2, amt));
     }
   };
   p5.prototype.red = function (c) {

From 27b67a92cbd6269a9b7fb7115b3bb60c7470394c Mon Sep 17 00:00:00 2001
From: Niels Joubert <njoubert@gmail.com>
Date: Fri, 8 May 2015 21:51:10 -0700
Subject: [PATCH 2/2] Clamp lerpColor amt value to [0,1] as the documentation
 suggests

---
 lib/p5.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/p5.js b/lib/p5.js
index c9b93bb53d..5e53d2569e 100644
--- a/lib/p5.js
+++ b/lib/p5.js
@@ -2100,6 +2100,7 @@ amdclean['colorcreating_reading'] = function (require, core, p5Color) {
     return c.getHue();
   };
   p5.prototype.lerpColor = function (c1, c2, amt) {
+    amt = Math.max(Math.min(amt, 1), 0);
     if (c1 instanceof Array) {
       var c = [];
       for (var i = 0; i < c1.length; i++) {