From 16a57bda819b7ce62247535cc030fde7b0e0c6ed Mon Sep 17 00:00:00 2001
From: "Anthony J. Thibault" <tony@highfidelity.io>
Date: Mon, 14 Mar 2016 17:30:53 -0700
Subject: [PATCH] SwingTwistConstriant: fix for bad index.

---
 libraries/animation/src/SwingTwistConstraint.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/animation/src/SwingTwistConstraint.cpp b/libraries/animation/src/SwingTwistConstraint.cpp
index 72659ff09d..d6d8c87344 100644
--- a/libraries/animation/src/SwingTwistConstraint.cpp
+++ b/libraries/animation/src/SwingTwistConstraint.cpp
@@ -249,7 +249,7 @@ void SwingTwistConstraint::setSwingLimits(const std::vector<glm::vec3>& swungDir
         int rightIndex = 0;
         for (int i = 0; i < numLimits; ++i) {
             float theta = (float)i * deltaTheta;
-            int leftIndex = (rightIndex - 1) % numLimits;
+            int leftIndex = (rightIndex - 1 + numLimits) % numLimits;
             while (rightIndex < numLimits && theta > limits[rightIndex]._theta) {
                 leftIndex = rightIndex++;
             }