From da376e0237517543aa21740ee2363234ee1c20ae Mon Sep 17 00:00:00 2001
From: Ton Roosendaal <ton@blender.org>
Date: Wed, 27 Apr 2011 11:58:34 +0000
Subject: Cycles render engine, initial commit. This is the engine itself,
 blender modifications and build instructions will follow later.

Cycles uses code from some great open source projects, many thanks them:

* BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs":
http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/
* Open Shading Language for a large part of the shading system:
http://code.google.com/p/openshadinglanguage/
* Blender for procedural textures and a few other nodes.
* Approximate Catmull Clark subdivision from NVidia Mesh tools:
http://code.google.com/p/nvidia-mesh-tools/
* Sobol direction vectors from:
http://web.maths.unsw.edu.au/~fkuo/sobol/
* Film response functions from:
http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
---
 intern/cycles/subd/subd_edge.h | 70 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 intern/cycles/subd/subd_edge.h

(limited to 'intern/cycles/subd/subd_edge.h')

diff --git a/intern/cycles/subd/subd_edge.h b/intern/cycles/subd/subd_edge.h
new file mode 100644
index 00000000000..edf98c8a5a0
--- /dev/null
+++ b/intern/cycles/subd/subd_edge.h
@@ -0,0 +1,70 @@
+/*
+ * Original code in the public domain -- castanyo@yahoo.es
+ * 
+ * Modifications copyright (c) 2011, Blender Foundation.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __SUBD_EDGE_H__
+#define __SUBD_EDGE_H__
+
+#include "subd_mesh.h"
+
+CCL_NAMESPACE_BEGIN
+
+/* Subd Half Edge */
+
+class SubdEdge
+{
+public:
+	int id;
+	
+	SubdEdge *next;
+	SubdEdge *prev;
+	SubdEdge *pair;
+	SubdVert *vert;
+	SubdFace *face;
+
+	SubdEdge(int id_)
+	{
+		id = id_;
+		next = NULL;
+		prev = NULL;
+		pair = NULL;
+		vert = NULL;
+		face = NULL;
+	}
+	
+	/* vertex queries */
+	SubdVert *from() { return vert; }
+	SubdVert *to() { return next->vert; }
+
+	/* face queries */
+	bool is_boundary() { return !(face && pair->face); }
+};
+
+CCL_NAMESPACE_END
+
+#endif /* __SUBD_EDGE_H__ */
+
-- 
cgit v1.2.3