From 577b6d11965df8d5cc79ff76095eca1b1c3c6a93 Mon Sep 17 00:00:00 2001
From: stoofin <44447892+stoofin@users.noreply.github.com>
Date: Tue, 19 Nov 2019 22:30:28 -0800
Subject: [PATCH] Fixed bug caused by a copy/paste error in
 Face3::get_closest_point_to
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s * edge0 = -d / a * edge0 = -edge0⋅v0 / (edge0⋅edge0) * edge0 = vector projection of -v0 onto edge0

By incorrectly using -e/c instead of -d/a, Face3::get_closest_point_to was returning the wrong point in certain cases.  Specifically, I noticed it returning vertex[0] when it should have been returning vertex[1].

(cherry picked from commit 8abd64dcbbe80e20b23fd526437bd068289f365c)
---
 core/math/face3.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/math/face3.cpp b/core/math/face3.cpp
index ab09142b2d3..666d214f98f 100644
--- a/core/math/face3.cpp
+++ b/core/math/face3.cpp
@@ -393,7 +393,7 @@ Vector3 Face3::get_closest_point_to(const Vector3 &p_point) const {
 				s = CLAMP(numer / denom, 0.f, 1.f);
 				t = 1 - s;
 			} else {
-				s = CLAMP(-e / c, 0.f, 1.f);
+				s = CLAMP(-d / a, 0.f, 1.f);
 				t = 0.f;
 			}
 		} else {