658a9c6cf5
I wouldn't mind changing style to have space after keyword, but there was no official code style change proposed.
135 lines
4.6 KiB
C++
135 lines
4.6 KiB
C++
/*
|
|
* Adapted from Open Shading Language with this license:
|
|
*
|
|
* Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al.
|
|
* All Rights Reserved.
|
|
*
|
|
* Modifications Copyright 2011, Blender Foundation.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* * Neither the name of Sony Pictures Imageworks nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <OSL/genclosure.h>
|
|
|
|
#include "kernel/kernel_compat_cpu.h"
|
|
#include "kernel/osl/osl_closures.h"
|
|
|
|
#include "kernel/kernel_types.h"
|
|
#include "kernel/kernel_montecarlo.h"
|
|
|
|
#include "kernel/closure/alloc.h"
|
|
#include "kernel/closure/bsdf_util.h"
|
|
#include "kernel/closure/bsdf_diffuse.h"
|
|
#include "kernel/closure/bsdf_principled_diffuse.h"
|
|
#include "kernel/closure/bssrdf.h"
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
using namespace OSL;
|
|
|
|
static ustring u_cubic("cubic");
|
|
static ustring u_gaussian("gaussian");
|
|
static ustring u_burley("burley");
|
|
static ustring u_principled("principled");
|
|
static ustring u_random_walk("random_walk");
|
|
static ustring u_principled_random_walk("principled_random_walk");
|
|
|
|
class CBSSRDFClosure : public CClosurePrimitive {
|
|
public:
|
|
Bssrdf params;
|
|
ustring method;
|
|
|
|
CBSSRDFClosure()
|
|
{
|
|
params.texture_blur = 0.0f;
|
|
params.sharpness = 0.0f;
|
|
params.roughness = 0.0f;
|
|
}
|
|
|
|
void setup(ShaderData *sd, int path_flag, float3 weight)
|
|
{
|
|
if(method == u_cubic) {
|
|
alloc(sd, path_flag, weight, CLOSURE_BSSRDF_CUBIC_ID);
|
|
}
|
|
else if(method == u_gaussian) {
|
|
alloc(sd, path_flag, weight, CLOSURE_BSSRDF_GAUSSIAN_ID);
|
|
}
|
|
else if(method == u_burley) {
|
|
alloc(sd, path_flag, weight, CLOSURE_BSSRDF_BURLEY_ID);
|
|
}
|
|
else if(method == u_principled) {
|
|
alloc(sd, path_flag, weight, CLOSURE_BSSRDF_PRINCIPLED_ID);
|
|
}
|
|
else if(method == u_random_walk) {
|
|
alloc(sd, path_flag, weight, CLOSURE_BSSRDF_RANDOM_WALK_ID);
|
|
}
|
|
else if(method == u_principled_random_walk) {
|
|
alloc(sd, path_flag, weight, CLOSURE_BSSRDF_PRINCIPLED_RANDOM_WALK_ID);
|
|
}
|
|
}
|
|
|
|
void alloc(ShaderData *sd, int path_flag, float3 weight, ClosureType type)
|
|
{
|
|
Bssrdf *bssrdf = bssrdf_alloc(sd, weight);
|
|
|
|
if(bssrdf) {
|
|
/* disable in case of diffuse ancestor, can't see it well then and
|
|
* adds considerably noise due to probabilities of continuing path
|
|
* getting lower and lower */
|
|
if(path_flag & PATH_RAY_DIFFUSE_ANCESTOR) {
|
|
params.radius = make_float3(0.0f, 0.0f, 0.0f);
|
|
}
|
|
|
|
/* create one closure per color channel */
|
|
bssrdf->radius = params.radius;
|
|
bssrdf->albedo = params.albedo;
|
|
bssrdf->texture_blur = params.texture_blur;
|
|
bssrdf->sharpness = params.sharpness;
|
|
bssrdf->N = params.N;
|
|
bssrdf->roughness = params.roughness;
|
|
sd->flag |= bssrdf_setup(sd, bssrdf, (ClosureType)type);
|
|
}
|
|
}
|
|
};
|
|
|
|
ClosureParam *closure_bssrdf_params()
|
|
{
|
|
static ClosureParam params[] = {
|
|
CLOSURE_STRING_PARAM(CBSSRDFClosure, method),
|
|
CLOSURE_FLOAT3_PARAM(CBSSRDFClosure, params.N),
|
|
CLOSURE_FLOAT3_PARAM(CBSSRDFClosure, params.radius),
|
|
CLOSURE_FLOAT3_PARAM(CBSSRDFClosure, params.albedo),
|
|
CLOSURE_FLOAT_KEYPARAM(CBSSRDFClosure, params.texture_blur, "texture_blur"),
|
|
CLOSURE_FLOAT_KEYPARAM(CBSSRDFClosure, params.sharpness, "sharpness"),
|
|
CLOSURE_FLOAT_KEYPARAM(CBSSRDFClosure, params.roughness, "roughness"),
|
|
CLOSURE_STRING_KEYPARAM(CBSSRDFClosure, label, "label"),
|
|
CLOSURE_FINISH_PARAM(CBSSRDFClosure)
|
|
};
|
|
return params;
|
|
}
|
|
|
|
CCLOSURE_PREPARE(closure_bssrdf_prepare, CBSSRDFClosure)
|
|
|
|
CCL_NAMESPACE_END
|