From 1021d32f7ccb9f3f10253934fd4e5202b7382b2d Mon Sep 17 00:00:00 2001
From: neoraider <devnull@localhost>
Date: Fri, 20 Oct 2006 12:57:05 +0000
Subject: Physik-Engine angefangen. Lightmaps implementiert.

---
 collision.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

(limited to 'collision.c')

diff --git a/collision.c b/collision.c
index 27e00b7..d093432 100644
--- a/collision.c
+++ b/collision.c
@@ -27,7 +27,7 @@ int CollisionPointTriangle(VERTEX p, TRIANGLE t) {
 
 int CollisionRayTriangle(VERTEX p, VECTOR vec,  TRIANGLE t, float* f) {
 	VECTOR pvec, tvec, qvec, edge1, edge2;
-	float det, u, v, invDet;
+	float det, u, v;
 	
 	edge1 = VectorSub(t.vertices[1], t.vertices[0]);
 	edge2 = VectorSub(t.vertices[2], t.vertices[0]);
@@ -46,11 +46,7 @@ int CollisionRayTriangle(VERTEX p, VECTOR vec,  TRIANGLE t, float* f) {
 	v = VectorDot(vec, qvec);
 	if(v < 0.0 || u+v > det) return 0;
 	
-	if(f) {
-		*f = VectorDot(edge2, qvec);
-		invDet = 1.0 / det;
-		*f *= invDet;
-	}
+	if(f) *f = VectorDot(edge2, qvec) / det;
 	
 	return 1;
 }
-- 
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