From: vortex <vortex@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Sat, 18 Feb 2012 12:29:05 +0000 (+0000)
Subject: VectorVectors: renormalize 'up' vector as it seems to be unnormalized in some cases... 
X-Git-Tag: xonotic-v0.8.0~96^2~319
X-Git-Url: http://git.xonotic.org/?a=commitdiff_plain;h=52e4991331e72a3fb72e04e04608b99dc4bb1837;p=xonotic%2Fdarkplaces.git

VectorVectors: renormalize 'up' vector as it seems to be unnormalized in some cases (a test case - spawning of large-scaled oriented particle).

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11697 d7cf8633-e32d-0410-b094-e92efae38249
---

diff --git a/mathlib.c b/mathlib.c
index dae0de50..129b0b8a 100644
--- a/mathlib.c
+++ b/mathlib.c
@@ -208,6 +208,7 @@ void VectorVectors(const vec3_t forward, vec3_t right, vec3_t up)
 	VectorMA(right, -d, forward, right);
 	VectorNormalize(right);
 	CrossProduct(right, forward, up);
+	VectorNormalize(up); // CrossProduct in this case returns 'up thats length is not 1
 }
 
 void VectorVectorsDouble(const double *forward, double *right, double *up)