From 843790e04199368cf81fb831bd7c503a3b2a8f71 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Wed, 6 Aug 2008 13:43:39 +0000
Subject: [PATCH] fix parabola xform

---
 panda/src/mathutil/parabola_src.cxx | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/panda/src/mathutil/parabola_src.cxx b/panda/src/mathutil/parabola_src.cxx
index 75a2879711..dd1799c9ae 100644
--- a/panda/src/mathutil/parabola_src.cxx
+++ b/panda/src/mathutil/parabola_src.cxx
@@ -20,9 +20,10 @@
 ////////////////////////////////////////////////////////////////////
 void FLOATNAME(Parabola)::
 xform(const FLOATNAME(LMatrix4) &mat) {
-  // I'm not really sure if this is the right thing to do here.
-  _a = mat.xform_vec_general(_a);
-  _b = mat.xform_vec_general(_b);
+  // Note that xform_vec() is the correct operation here, while
+  // xform_vec_general() is not.
+  _a = mat.xform_vec(_a);
+  _b = mat.xform_vec(_b);
   _c = mat.xform_point(_c);
 }