forked from bartvdbraak/blender
da376e0237
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
106 lines
3.0 KiB
Common Lisp
106 lines
3.0 KiB
Common Lisp
/*
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* Copyright 2011, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/* OpenCL kernel entry points - unfinished */
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#include "kernel_compat_opencl.h"
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#include "kernel_math.h"
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#include "kernel_types.h"
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#include "kernel_globals.h"
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typedef struct KernelGlobals {
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__constant KernelData *data;
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__global float *__response_curve_R;
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int __response_curve_R_width;
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__global float *__response_curve_G;
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int __response_curve_G_width;
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__global float *__response_curve_B;
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int __response_curve_B_width;
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} KernelGlobals;
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#include "kernel_film.h"
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//#include "kernel_path.h"
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//#include "kernel_displace.h"
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__kernel void kernel_ocl_path_trace(__constant KernelData *data, __global float4 *buffer, __global uint *rng_state, int pass, int sx, int sy, int sw, int sh)
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{
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KernelGlobals kglobals, *kg = &kglobals;
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kg->data = data;
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int x = get_global_id(0);
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int y = get_global_id(1);
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int w = kernel_data.cam.width;
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if(x < sx + sw && y < sy + sh) {
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if(pass == 0) {
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buffer[x + w*y].x = 0.5f;
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buffer[x + w*y].y = 0.5f;
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buffer[x + w*y].z = 0.5f;
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}
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else {
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buffer[x + w*y].x += 0.5f;
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buffer[x + w*y].y += 0.5f;
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buffer[x + w*y].z += 0.5f;
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}
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//= make_float3(1.0f, 0.9f, 0.0f);
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//kernel_path_trace(buffer, rng_state, pass, x, y);
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}
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}
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__kernel void kernel_ocl_tonemap(
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__constant KernelData *data,
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__global uchar4 *rgba,
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__global float4 *buffer,
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__global float *__response_curve_R,
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int __response_curve_R_width,
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__global float *__response_curve_G,
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int __response_curve_G_width,
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__global float *__response_curve_B,
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int __response_curve_B_width,
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int pass, int resolution,
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int sx, int sy, int sw, int sh)
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{
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KernelGlobals kglobals, *kg = &kglobals;
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kg->data = data;
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kg->__response_curve_R = __response_curve_R;
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kg->__response_curve_R_width = __response_curve_R_width;
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kg->__response_curve_G = __response_curve_G;
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kg->__response_curve_G_width = __response_curve_G_width;
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kg->__response_curve_B = __response_curve_B;
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kg->__response_curve_B_width = __response_curve_B_width;
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int x = sx + get_global_id(0);
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int y = sy + get_global_id(1);
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if(x < sx + sw && y < sy + sh)
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kernel_film_tonemap(kg, rgba, buffer, pass, resolution, x, y);
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}
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__kernel void kernel_ocl_displace(__global uint4 *input, __global float3 *offset, int sx)
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{
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int x = sx + get_global_id(0);
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kernel_displace(input, offset, x);
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}
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