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/kernel/kernel.cu | 53 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 intern/cycles/kernel/kernel.cu

(limited to 'intern/cycles/kernel/kernel.cu')

diff --git a/intern/cycles/kernel/kernel.cu b/intern/cycles/kernel/kernel.cu
new file mode 100644
index 00000000000..5e5b445ac2c
--- /dev/null
+++ b/intern/cycles/kernel/kernel.cu
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2011, Blender Foundation.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/* CUDA kernel entry points */
+
+#include "kernel_compat_cuda.h"
+#include "kernel_math.h"
+#include "kernel_types.h"
+#include "kernel_globals.h"
+#include "kernel_film.h"
+#include "kernel_path.h"
+#include "kernel_displace.h"
+
+extern "C" __global__ void kernel_cuda_path_trace(float4 *buffer, uint *rng_state, int pass, int sx, int sy, int sw, int sh)
+{
+	int x = sx + blockDim.x*blockIdx.x + threadIdx.x;
+	int y = sy + blockDim.y*blockIdx.y + threadIdx.y;
+
+	if(x < sx + sw && y < sy + sh)
+		kernel_path_trace(NULL, buffer, rng_state, pass, x, y);
+}
+
+extern "C" __global__ void kernel_cuda_tonemap(uchar4 *rgba, float4 *buffer, int pass, int resolution, int sx, int sy, int sw, int sh)
+{
+	int x = sx + blockDim.x*blockIdx.x + threadIdx.x;
+	int y = sy + blockDim.y*blockIdx.y + threadIdx.y;
+
+	if(x < sx + sw && y < sy + sh)
+		kernel_film_tonemap(NULL, rgba, buffer, pass, resolution, x, y);
+}
+
+extern "C" __global__ void kernel_cuda_displace(uint4 *input, float3 *offset, int sx)
+{
+	int x = sx + blockDim.x*blockIdx.x + threadIdx.x;
+
+	kernel_displace(NULL, input, offset, x);
+}
+
-- 
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