From db3decdaf8c9066fa9de90aa7f96a6480dfa2a26 Mon Sep 17 00:00:00 2001
From: georges <>
Date: Fri, 16 Feb 2001 00:03:34 +0000
Subject: [PATCH] teeny optimization

---
 panda/src/collide/collisionSphere.cxx | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/panda/src/collide/collisionSphere.cxx b/panda/src/collide/collisionSphere.cxx
index 8f36710619..a9e2748db8 100644
--- a/panda/src/collide/collisionSphere.cxx
+++ b/panda/src/collide/collisionSphere.cxx
@@ -309,7 +309,7 @@ intersects_line(double &t1, double &t2,
 
   if (IS_NEARLY_ZERO(radical)) {
     // Tangent.
-    t1 = t2 = -B / (2.0*A);
+    t1 = t2 = -B /(2.0*A);
     return true;
   }
 
@@ -318,10 +318,11 @@ intersects_line(double &t1, double &t2,
     return false;
   }
 
+  double reciprocal_2A = 1.0f/(2.0*A);
   double sqrt_radical = sqrtf(radical);
-  t1 = ( -B - sqrt_radical ) / (2.0*A);
-  t2 = ( -B + sqrt_radical ) / (2.0*A);
-  
+  t1 = ( -B - sqrt_radical ) * reciprocal_2A;
+  t2 = ( -B + sqrt_radical ) * reciprocal_2A;
+
   return true;
 }