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

1 files changed, 65 insertions, 0 deletions

diff --git a/intern/cycles/subd/subd_stencil.h b/intern/cycles/subd/subd_stencil.h
new file mode 100644
index 00000000000..e11d8f37cd3
--- /dev/null
+++ b/intern/cycles/subd/subd_stencil.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2006, NVIDIA Corporation Ignacio Castano <icastano@nvidia.com>
+ *
+ * Modifications copyright (c) 2011, Blender Foundation.
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef __SUBD_STENCIL__
+#define __SUBD_STENCIL__
+
+#include "util_types.h"
+#include "util_vector.h"
+
+CCL_NAMESPACE_BEGIN
+
+class StencilMask
+{
+public:
+	StencilMask();
+	StencilMask(int size);
+
+	void resize(int size);
+
+	StencilMask& operator=(float value);
+
+	void operator+=(const StencilMask& mask);
+	void operator-=(const StencilMask& mask);
+	void operator*=(float scale);
+	void operator/=(float scale);
+
+	int size() const { return weights.size(); }
+
+	float operator[](int i) const { return weights[i]; }
+	float& operator[](int i) { return weights[i]; }
+
+	float sum() const;
+	bool is_normalized() const;
+	void normalize();
+
+private:
+	vector<float> weights;
+};
+
+CCL_NAMESPACE_END
+
+#endif /* __SUBD_STENCIL__ */
+