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blender/intern/cycles/kernel/kernel.h

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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
2011-04-27 11:58:34 +00:00
/*
Cycles: relicense GNU GPL source code to Apache version 2.0. More information in this post: http://code.blender.org/ Thanks to all contributes for giving their permission!
2013-08-18 14:16:15 +00:00
* Copyright 2011-2013 Blender Foundation
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
2011-04-27 11:58:34 +00:00
*
Cycles: relicense GNU GPL source code to Apache version 2.0. More information in this post: http://code.blender.org/ Thanks to all contributes for giving their permission!
2013-08-18 14:16:15 +00:00
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
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
2011-04-27 11:58:34 +00:00
*
Cycles: relicense GNU GPL source code to Apache version 2.0. More information in this post: http://code.blender.org/ Thanks to all contributes for giving their permission!
2013-08-18 14:16:15 +00:00
* http://www.apache.org/licenses/LICENSE-2.0
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
2011-04-27 11:58:34 +00:00
*
Cycles: relicense GNU GPL source code to Apache version 2.0. More information in this post: http://code.blender.org/ Thanks to all contributes for giving their permission!
2013-08-18 14:16:15 +00:00
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
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
2011-04-27 11:58:34 +00:00
*/
#ifndef __KERNEL_H__
#define __KERNEL_H__
/* CPU Kernel Interfae */
#include "util_types.h"
CCL_NAMESPACE_BEGIN
struct KernelGlobals;
KernelGlobals *kernel_globals_create();
void kernel_globals_free(KernelGlobals *kg);
void *kernel_osl_memory(KernelGlobals *kg);
bool kernel_osl_use(KernelGlobals *kg);
void kernel_const_copy(KernelGlobals *kg, const char *name, void *host, size_t size);
void kernel_tex_copy(KernelGlobals *kg, const char *name, device_ptr mem, size_t width, size_t height);
Cycles: Render Passes Currently supported passes: * Combined, Z, Normal, Object Index, Material Index, Emission, Environment, Diffuse/Glossy/Transmission x Direct/Indirect/Color Not supported yet: * UV, Vector, Mist Only enabled for CPU devices at the moment, will do GPU tweaks tommorrow, also for environment importance sampling. Documentation: http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Passes
2012-01-25 17:23:52 +00:00
void kernel_cpu_path_trace(KernelGlobals *kg, float *buffer, unsigned int *rng_state,
Cycles: border rendering support, includes some refactoring in how pixels are accessed on devices.
2011-12-20 12:25:37 +00:00
int sample, int x, int y, int offset, int stride);
Cycles: viewport render now takes scene color management settings into account, except for curves, that's still missing from the OpenColorIO GLSL shader. The pixels are stored in a half float texture, converterd from full float with native GPU instructions and SIMD on the CPU, so it should be pretty quick. Using a GLSL shader is useful for GPU render because it avoids a copy through CPU memory.
2013-08-30 23:49:38 +00:00
void kernel_cpu_convert_to_byte(KernelGlobals *kg, uchar4 *rgba, float *buffer,
float sample_scale, int x, int y, int offset, int stride);
void kernel_cpu_convert_to_half_float(KernelGlobals *kg, uchar4 *rgba, float *buffer,
float sample_scale, int x, int y, int offset, int stride);
Sample as Lamp option for world shaders, to enable multiple importance sampling. By default lighting from the world is computed solely with indirect light sampling. However for more complex environment maps this can be too noisy, as sampling the BSDF may not easily find the highlights in the environment map image. By enabling this option, the world background will be sampled as a lamp, with lighter parts automatically given more samples. Map Resolution specifies the size of the importance map (res x res). Before rendering starts, an importance map is generated by "baking" a grayscale image from the world shader. This will then be used to determine which parts of the background are light and so should receive more samples than darker parts. Higher resolutions will result in more accurate sampling but take more setup time and memory. Patch by Mike Farnsworth, thanks!
2012-01-20 17:49:17 +00:00
void kernel_cpu_shader(KernelGlobals *kg, uint4 *input, float4 *output,
Cycles code refactoring: change displace kernel into more generic shader evaluate kernel, added background shader evaluate.
2011-12-31 15:18:13 +00:00
int type, int i);
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
2011-04-27 11:58:34 +00:00
Fix #29259: cycles issues on certain processors. Now two versions of the kernel are compiled, one SSE optimized and the other not, and it will choose between them at runtime.
2011-11-15 15:13:38 +00:00
#ifdef WITH_OPTIMIZED_KERNEL
Fix cycles intersection issue with overlapping faces on windows 32 bit and CPU without SSE3 support, due to 80 bit precision float register being used for one bounding box but not the one next to it.
2013-02-04 16:12:37 +00:00
void kernel_cpu_sse2_path_trace(KernelGlobals *kg, float *buffer, unsigned int *rng_state,
Cycles: border rendering support, includes some refactoring in how pixels are accessed on devices.
2011-12-20 12:25:37 +00:00
int sample, int x, int y, int offset, int stride);
Cycles: viewport render now takes scene color management settings into account, except for curves, that's still missing from the OpenColorIO GLSL shader. The pixels are stored in a half float texture, converterd from full float with native GPU instructions and SIMD on the CPU, so it should be pretty quick. Using a GLSL shader is useful for GPU render because it avoids a copy through CPU memory.
2013-08-30 23:49:38 +00:00
void kernel_cpu_sse2_convert_to_byte(KernelGlobals *kg, uchar4 *rgba, float *buffer,
float sample_scale, int x, int y, int offset, int stride);
void kernel_cpu_sse2_convert_to_half_float(KernelGlobals *kg, uchar4 *rgba, float *buffer,
float sample_scale, int x, int y, int offset, int stride);
Fix cycles intersection issue with overlapping faces on windows 32 bit and CPU without SSE3 support, due to 80 bit precision float register being used for one bounding box but not the one next to it.
2013-02-04 16:12:37 +00:00
void kernel_cpu_sse2_shader(KernelGlobals *kg, uint4 *input, float4 *output,
int type, int i);
void kernel_cpu_sse3_path_trace(KernelGlobals *kg, float *buffer, unsigned int *rng_state,
int sample, int x, int y, int offset, int stride);
Cycles: viewport render now takes scene color management settings into account, except for curves, that's still missing from the OpenColorIO GLSL shader. The pixels are stored in a half float texture, converterd from full float with native GPU instructions and SIMD on the CPU, so it should be pretty quick. Using a GLSL shader is useful for GPU render because it avoids a copy through CPU memory.
2013-08-30 23:49:38 +00:00
void kernel_cpu_sse3_convert_to_byte(KernelGlobals *kg, uchar4 *rgba, float *buffer,
float sample_scale, int x, int y, int offset, int stride);
void kernel_cpu_sse3_convert_to_half_float(KernelGlobals *kg, uchar4 *rgba, float *buffer,
float sample_scale, int x, int y, int offset, int stride);
Fix cycles intersection issue with overlapping faces on windows 32 bit and CPU without SSE3 support, due to 80 bit precision float register being used for one bounding box but not the one next to it.
2013-02-04 16:12:37 +00:00
void kernel_cpu_sse3_shader(KernelGlobals *kg, uint4 *input, float4 *output,
Cycles code refactoring: change displace kernel into more generic shader evaluate kernel, added background shader evaluate.
2011-12-31 15:18:13 +00:00
int type, int i);
Cycles: test code for sse 4.1 kernel and alignment for some vector types. This is mostly work towards enabling the __KERNEL_SSE__ option to start using SIMD operations for vector math operations. This 4.1 kernel performes about 8% faster with that option but overall is still slower than without the option. WITH_CYCLES_OPTIMIZED_KERNEL_SSE41 is the cmake flag for testing this kernel. Alignment of int3, int4, float3, float4 to 16 bytes seems to give a slight 1-2% speedup on tested systems with the current kernel already, so is enabled now.
2013-11-22 13:16:47 +00:00
void kernel_cpu_sse41_path_trace(KernelGlobals *kg, float *buffer, unsigned int *rng_state,
int sample, int x, int y, int offset, int stride);
void kernel_cpu_sse41_convert_to_byte(KernelGlobals *kg, uchar4 *rgba, float *buffer,
float sample_scale, int x, int y, int offset, int stride);
void kernel_cpu_sse41_convert_to_half_float(KernelGlobals *kg, uchar4 *rgba, float *buffer,
float sample_scale, int x, int y, int offset, int stride);
void kernel_cpu_sse41_shader(KernelGlobals *kg, uint4 *input, float4 *output,
int type, int i);
Fix #29259: cycles issues on certain processors. Now two versions of the kernel are compiled, one SSE optimized and the other not, and it will choose between them at runtime.
2011-11-15 15:13:38 +00:00
#endif
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
2011-04-27 11:58:34 +00:00
CCL_NAMESPACE_END
#endif /* __KERNEL_H__ */
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