2013-04-01 20:26:52 +00:00
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/*
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* Adapted from Open Shading Language with this license:
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*
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* Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al.
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* All Rights Reserved.
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*
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* Modifications Copyright 2011, Blender Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Sony Pictures Imageworks nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <OSL/genclosure.h>
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2015-05-09 13:55:46 +00:00
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#include "kernel_compat_cpu.h"
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2013-04-01 20:26:52 +00:00
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#include "osl_closures.h"
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#include "kernel_types.h"
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#include "kernel_montecarlo.h"
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2016-07-25 01:03:23 +00:00
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#include "closure/alloc.h"
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2013-04-01 20:26:52 +00:00
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#include "closure/bsdf_diffuse.h"
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#include "closure/bssrdf.h"
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CCL_NAMESPACE_BEGIN
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using namespace OSL;
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2016-07-25 01:03:23 +00:00
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class CBSSRDFClosure : public CClosurePrimitive {
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public:
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Bssrdf params;
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float3 radius;
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float3 albedo;
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void alloc(ShaderData *sd, int path_flag, float3 weight, ClosureType type)
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{
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float sample_weight = fabsf(average(weight));
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/* disable in case of diffuse ancestor, can't see it well then and
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* adds considerably noise due to probabilities of continuing path
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* getting lower and lower */
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if(path_flag & PATH_RAY_DIFFUSE_ANCESTOR) {
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radius = make_float3(0.0f, 0.0f, 0.0f);
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}
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if(sample_weight > CLOSURE_WEIGHT_CUTOFF) {
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/* sharpness */
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float sharpness = params.sharpness;
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/* texture color blur */
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float texture_blur = params.texture_blur;
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/* create one closure per color channel */
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Bssrdf *bssrdf = bssrdf_alloc(sd, make_float3(weight.x, 0.0f, 0.0f));
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if(bssrdf) {
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bssrdf->sample_weight = sample_weight;
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bssrdf->radius = radius.x;
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bssrdf->texture_blur = texture_blur;
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bssrdf->albedo = albedo.x;
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bssrdf->sharpness = sharpness;
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bssrdf->N = params.N;
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ccl_fetch(sd, flag) |= bssrdf_setup(bssrdf, (ClosureType)type);
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}
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bssrdf = bssrdf_alloc(sd, make_float3(0.0f, weight.y, 0.0f));
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if(bssrdf) {
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bssrdf->sample_weight = sample_weight;
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bssrdf->radius = radius.y;
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bssrdf->texture_blur = texture_blur;
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bssrdf->albedo = albedo.y;
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bssrdf->sharpness = sharpness;
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bssrdf->N = params.N;
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ccl_fetch(sd, flag) |= bssrdf_setup(bssrdf, (ClosureType)type);
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}
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bssrdf = bssrdf_alloc(sd, make_float3(0.0f, 0.0f, weight.z));
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if(bssrdf) {
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bssrdf->sample_weight = sample_weight;
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bssrdf->radius = radius.z;
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bssrdf->texture_blur = texture_blur;
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bssrdf->albedo = albedo.z;
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bssrdf->sharpness = sharpness;
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bssrdf->N = params.N;
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ccl_fetch(sd, flag) |= bssrdf_setup(bssrdf, (ClosureType)type);
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}
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}
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}
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};
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2013-08-18 14:15:57 +00:00
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/* Cubic */
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class CubicBSSRDFClosure : public CBSSRDFClosure {
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2013-04-01 20:26:52 +00:00
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public:
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2016-07-25 01:03:23 +00:00
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void setup(ShaderData *sd, int path_flag, float3 weight)
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2013-04-01 20:26:52 +00:00
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{
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2016-07-25 01:03:23 +00:00
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alloc(sd, path_flag, weight, CLOSURE_BSSRDF_CUBIC_ID);
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2013-08-18 14:15:57 +00:00
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}
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};
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ClosureParam *closure_bssrdf_cubic_params()
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2013-09-03 22:39:17 +00:00
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{
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static ClosureParam params[] = {
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2016-07-25 01:03:23 +00:00
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CLOSURE_FLOAT3_PARAM(CubicBSSRDFClosure, params.N),
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2013-09-03 22:39:17 +00:00
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CLOSURE_FLOAT3_PARAM(CubicBSSRDFClosure, radius),
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2016-07-25 01:03:23 +00:00
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CLOSURE_FLOAT_PARAM(CubicBSSRDFClosure, params.texture_blur),
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CLOSURE_FLOAT_PARAM(CubicBSSRDFClosure, params.sharpness),
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2016-02-03 11:17:39 +00:00
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CLOSURE_STRING_KEYPARAM(CubicBSSRDFClosure, label, "label"),
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CLOSURE_FINISH_PARAM(CubicBSSRDFClosure)
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2013-09-03 22:39:17 +00:00
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};
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return params;
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}
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2013-11-29 01:09:24 +00:00
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CCLOSURE_PREPARE(closure_bssrdf_cubic_prepare, CubicBSSRDFClosure)
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2013-08-18 14:15:57 +00:00
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/* Gaussian */
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class GaussianBSSRDFClosure : public CBSSRDFClosure {
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public:
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2016-07-25 01:03:23 +00:00
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void setup(ShaderData *sd, int path_flag, float3 weight)
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2013-08-18 14:15:57 +00:00
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{
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2016-07-25 01:03:23 +00:00
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alloc(sd, path_flag, weight, CLOSURE_BSSRDF_GAUSSIAN_ID);
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2013-04-01 20:26:52 +00:00
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}
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};
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2013-08-18 14:15:57 +00:00
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ClosureParam *closure_bssrdf_gaussian_params()
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2013-09-03 22:39:17 +00:00
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{
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static ClosureParam params[] = {
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2016-07-25 01:03:23 +00:00
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CLOSURE_FLOAT3_PARAM(GaussianBSSRDFClosure, params.N),
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2013-09-03 22:39:17 +00:00
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CLOSURE_FLOAT3_PARAM(GaussianBSSRDFClosure, radius),
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2016-07-25 01:03:23 +00:00
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CLOSURE_FLOAT_PARAM(GaussianBSSRDFClosure, params.texture_blur),
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2016-02-03 11:17:39 +00:00
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CLOSURE_STRING_KEYPARAM(GaussianBSSRDFClosure, label, "label"),
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CLOSURE_FINISH_PARAM(GaussianBSSRDFClosure)
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2013-09-03 22:39:17 +00:00
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};
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return params;
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}
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2013-11-29 01:09:24 +00:00
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CCLOSURE_PREPARE(closure_bssrdf_gaussian_prepare, GaussianBSSRDFClosure)
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2013-04-01 20:26:52 +00:00
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2016-02-03 22:34:49 +00:00
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/* Burley */
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class BurleyBSSRDFClosure : public CBSSRDFClosure {
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public:
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2016-07-25 01:03:23 +00:00
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void setup(ShaderData *sd, int path_flag, float3 weight)
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2016-02-03 22:34:49 +00:00
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{
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2016-07-25 01:03:23 +00:00
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alloc(sd, path_flag, weight, CLOSURE_BSSRDF_BURLEY_ID);
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2016-02-03 22:34:49 +00:00
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}
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};
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ClosureParam *closure_bssrdf_burley_params()
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{
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static ClosureParam params[] = {
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2016-07-25 01:03:23 +00:00
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CLOSURE_FLOAT3_PARAM(BurleyBSSRDFClosure, params.N),
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2016-02-03 22:34:49 +00:00
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CLOSURE_FLOAT3_PARAM(BurleyBSSRDFClosure, radius),
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2016-07-25 01:03:23 +00:00
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CLOSURE_FLOAT_PARAM(BurleyBSSRDFClosure, params.texture_blur),
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2016-02-03 22:34:49 +00:00
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CLOSURE_FLOAT3_PARAM(BurleyBSSRDFClosure, albedo),
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CLOSURE_STRING_KEYPARAM(BurleyBSSRDFClosure, label, "label"),
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CLOSURE_FINISH_PARAM(BurleyBSSRDFClosure)
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};
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return params;
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}
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CCLOSURE_PREPARE(closure_bssrdf_burley_prepare, BurleyBSSRDFClosure)
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2013-04-01 20:26:52 +00:00
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CCL_NAMESPACE_END
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