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blender/intern/cycles/kernel/closure/volume.h

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Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
2011-09-27 20:03:16 +00:00
/*
* 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.
*/
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
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CCL_NAMESPACE_BEGIN
Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
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/* note: the interfaces here are just as an example, need to figure
style cleanup: block comments
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* out the right functions and parameters to use */
Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
2011-09-27 20:03:16 +00:00
/* ISOTROPIC VOLUME CLOSURE */
Cycles OSL: most closure code is now shared between OSL and SVM. Also fix transmission pass and filter glossy option. The BSDF closure class is now more similar to the SVM closures, and includes some flags and labels that are needed to properly categorize the BSDF's for render passes. Phong closure is gone for the moment, needs to be adapated to the new structure still.
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__device int volume_isotropic_setup(ShaderClosure *sc, float density)
Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
2011-09-27 20:03:16 +00:00
{
sc->type = CLOSURE_VOLUME_ISOTROPIC_ID;
sc->data0 = density;
Cycles OSL: most closure code is now shared between OSL and SVM. Also fix transmission pass and filter glossy option. The BSDF closure class is now more similar to the SVM closures, and includes some flags and labels that are needed to properly categorize the BSDF's for render passes. Phong closure is gone for the moment, needs to be adapated to the new structure still.
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return SD_VOLUME;
Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
2011-09-27 20:03:16 +00:00
}
Cycles OSL: most closure code is now shared between OSL and SVM. Also fix transmission pass and filter glossy option. The BSDF closure class is now more similar to the SVM closures, and includes some flags and labels that are needed to properly categorize the BSDF's for render passes. Phong closure is gone for the moment, needs to be adapated to the new structure still.
2012-10-20 12:18:00 +00:00
__device float3 volume_isotropic_eval_phase(const ShaderClosure *sc, const float3 omega_in, const float3 omega_out)
Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
2011-09-27 20:03:16 +00:00
{
return make_float3(1.0f, 1.0f, 1.0f);
}
/* TRANSPARENT VOLUME CLOSURE */
Cycles OSL: most closure code is now shared between OSL and SVM. Also fix transmission pass and filter glossy option. The BSDF closure class is now more similar to the SVM closures, and includes some flags and labels that are needed to properly categorize the BSDF's for render passes. Phong closure is gone for the moment, needs to be adapated to the new structure still.
2012-10-20 12:18:00 +00:00
__device int volume_transparent_setup(ShaderClosure *sc, float density)
Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
2011-09-27 20:03:16 +00:00
{
sc->type = CLOSURE_VOLUME_TRANSPARENT_ID;
sc->data0 = density;
Cycles OSL: most closure code is now shared between OSL and SVM. Also fix transmission pass and filter glossy option. The BSDF closure class is now more similar to the SVM closures, and includes some flags and labels that are needed to properly categorize the BSDF's for render passes. Phong closure is gone for the moment, needs to be adapated to the new structure still.
2012-10-20 12:18:00 +00:00
return SD_VOLUME;
Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
2011-09-27 20:03:16 +00:00
}
Cycles OSL: most closure code is now shared between OSL and SVM. Also fix transmission pass and filter glossy option. The BSDF closure class is now more similar to the SVM closures, and includes some flags and labels that are needed to properly categorize the BSDF's for render passes. Phong closure is gone for the moment, needs to be adapated to the new structure still.
2012-10-20 12:18:00 +00:00
__device float3 volume_transparent_eval_phase(const ShaderClosure *sc, const float3 omega_in, const float3 omega_out)
Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
2011-09-27 20:03:16 +00:00
{
return make_float3(1.0f, 1.0f, 1.0f);
}
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
/* VOLUME CLOSURE */
Cycles OSL minor optimizations: recycle shading context, don't do memory allocations for trace data, avoid some virtual function calls. Only helps a few percentages.
2012-12-15 10:18:42 +00:00
__device float3 volume_eval_phase(KernelGlobals *kg, const ShaderClosure *sc, const float3 omega_in, const float3 omega_out)
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 OSL minor optimizations: recycle shading context, don't do memory allocations for trace data, avoid some virtual function calls. Only helps a few percentages.
2012-12-15 10:18:42 +00:00
#ifdef __OSL__
if(kg->osl && sc->prim)
return OSLShader::volume_eval_phase(sc, omega_in, omega_out);
#endif
Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
2011-09-27 20:03:16 +00:00
float3 eval;
switch(sc->type) {
case CLOSURE_VOLUME_ISOTROPIC_ID:
Cycles OSL: most closure code is now shared between OSL and SVM. Also fix transmission pass and filter glossy option. The BSDF closure class is now more similar to the SVM closures, and includes some flags and labels that are needed to properly categorize the BSDF's for render passes. Phong closure is gone for the moment, needs to be adapated to the new structure still.
2012-10-20 12:18:00 +00:00
eval = volume_isotropic_eval_phase(sc, omega_in, omega_out);
Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
2011-09-27 20:03:16 +00:00
break;
case CLOSURE_VOLUME_TRANSPARENT_ID:
Cycles OSL: most closure code is now shared between OSL and SVM. Also fix transmission pass and filter glossy option. The BSDF closure class is now more similar to the SVM closures, and includes some flags and labels that are needed to properly categorize the BSDF's for render passes. Phong closure is gone for the moment, needs to be adapated to the new structure still.
2012-10-20 12:18:00 +00:00
eval = volume_transparent_eval_phase(sc, omega_in, omega_out);
Cycles: add some volume nodes, they don't actually do anything, this is just to give other developers who may want to work on this to get a starting point.
2011-09-27 20:03:16 +00:00
break;
default:
eval = make_float3(0.0f, 0.0f, 0.0f);
break;
}
return eval;
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
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}
CCL_NAMESPACE_END
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