generic hints for raytracer

for now only BB hint (i am  hoping to find a decent frustum-test)

1 files changed, 65 insertions, 0 deletions

diff --git a/source/blender/render/intern/raytrace/rayobject_hint.h b/source/blender/render/intern/raytrace/rayobject_hint.h
new file mode 100644
index 00000000000..cc8728a28cb
--- /dev/null
+++ b/source/blender/render/intern/raytrace/rayobject_hint.h
@@ -0,0 +1,65 @@
+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version. 
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2009 Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): André Pinto.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+#define HINT_RECURSE	 1
+#define HINT_ACCEPT		 0
+#define HINT_DISCARD	-1
+
+struct HintBB
+{
+	float bb[6];
+};
+
+inline int hint_test_bb(HintBB *obj, float *Nmin, float *Nmax)
+{
+	if(bb_fits_inside( Nmin, Nmax, obj->bb, obj->bb+3 ) )
+		return HINT_RECURSE;
+	else
+		return HINT_ACCEPT;
+}
+/*
+struct HintFrustum
+{
+	float co[3];
+	float no[4][3];
+};
+
+inline int hint_test_bb(HintFrustum &obj, float *Nmin, float *Nmax)
+{
+	//if frustum inside BB
+	{
+		return HINT_RECURSE;
+	}
+	//if BB outside frustum
+	{
+		return HINT_DISCARD;
+	}
+	
+	return HINT_ACCEPT;
+}
+*/