From c5de3c38d771c3ef40522f73dea26b463ce82d05 Mon Sep 17 00:00:00 2001
From: divverent <divverent@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Mon, 20 Feb 2012 15:11:32 +0000
Subject: [PATCH] add a note about a VectorVectors bug

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11708 d7cf8633-e32d-0410-b094-e92efae38249
---
 mathlib.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mathlib.c b/mathlib.c
index 129b0b8a..ed0a43c6 100644
--- a/mathlib.c
+++ b/mathlib.c
@@ -203,6 +203,10 @@ void VectorVectors(const vec3_t forward, vec3_t right, vec3_t up)
 	right[0] = forward[2];
 	right[1] = -forward[0];
 	right[2] = forward[1];
+	// BUG!
+	//   assume forward = {sqrt(1/3), sqrt(1/3), -sqrt(1/3)}
+	//   then right will be {-sqrt(1/3), -sqrt(1/3), sqrt(1/3)}
+	//   PROBLEM?
 
 	d = DotProduct(forward, right);
 	VectorMA(right, -d, forward, right);
-- 
2.39.2