diff options
author | Ton Roosendaal <ton@blender.org> | 2011-04-27 15:58:34 +0400 |
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committer | Ton Roosendaal <ton@blender.org> | 2011-04-27 15:58:34 +0400 |
commit | da376e0237517543aa21740ee2363234ee1c20ae (patch) | |
tree | 014a513ed8d0eccc5e54fef42347781e85bae56a /intern/cycles/kernel/kernel.cu | |
parent | 693780074388111e7b9ef1c3825e462f398dc6c4 (diff) |
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
Diffstat (limited to 'intern/cycles/kernel/kernel.cu')
-rw-r--r-- | intern/cycles/kernel/kernel.cu | 53 |
1 files changed, 53 insertions, 0 deletions
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); +} + |