forked from bartvdbraak/blender
06888b7beb
allocations for trace data, avoid some virtual function calls. Only helps a few percentages.
116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
/*
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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 <OpenImageIO/fmath.h>
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#include <OSL/genclosure.h>
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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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#include "closure/bsdf_diffuse_ramp.h"
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CCL_NAMESPACE_BEGIN
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using namespace OSL;
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class DiffuseRampClosure : public CBSDFClosure {
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public:
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DiffuseRampClosure() : CBSDFClosure(LABEL_DIFFUSE) {}
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Color3 colors[8];
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float3 fcolors[8];
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size_t memsize() const { return sizeof(*this); }
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const char *name() const { return "diffuse_ramp"; }
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void setup()
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{
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sc.prim = this;
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m_shaderdata_flag = bsdf_diffuse_ramp_setup(&sc);
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for(int i = 0; i < 8; i++)
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fcolors[i] = TO_FLOAT3(colors[i]);
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}
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bool mergeable(const ClosurePrimitive *other) const
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{
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return false;
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}
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void blur(float roughness)
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{
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bsdf_diffuse_ramp_blur(&sc, roughness);
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}
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void print_on(std::ostream &out) const
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{
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out << name() << " ((" << sc.N[0] << ", " << sc.N[1] << ", " << sc.N[2] << "))";
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}
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float3 eval_reflect(const float3 &omega_out, const float3 &omega_in, float& pdf) const
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{
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return bsdf_diffuse_ramp_eval_reflect(&sc, fcolors, omega_out, omega_in, &pdf);
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}
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float3 eval_transmit(const float3 &omega_out, const float3 &omega_in, float& pdf) const
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{
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return bsdf_diffuse_ramp_eval_transmit(&sc, fcolors, omega_out, omega_in, &pdf);
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}
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int sample(const float3 &Ng,
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const float3 &omega_out, const float3 &domega_out_dx, const float3 &domega_out_dy,
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float randu, float randv,
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float3 &omega_in, float3 &domega_in_dx, float3 &domega_in_dy,
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float &pdf, float3 &eval) const
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{
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return bsdf_diffuse_ramp_sample(&sc, fcolors, Ng, omega_out, domega_out_dx, domega_out_dy,
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randu, randv, &eval, &omega_in, &domega_in_dx, &domega_in_dy, &pdf);
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}
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};
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ClosureParam *closure_bsdf_diffuse_ramp_params()
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{
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static ClosureParam params[] = {
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CLOSURE_FLOAT3_PARAM(DiffuseRampClosure, sc.N),
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CLOSURE_COLOR_ARRAY_PARAM(DiffuseRampClosure, colors, 8),
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CLOSURE_STRING_KEYPARAM("label"),
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CLOSURE_FINISH_PARAM(DiffuseRampClosure)
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};
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return params;
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}
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CLOSURE_PREPARE(closure_bsdf_diffuse_ramp_prepare, DiffuseRampClosure)
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CCL_NAMESPACE_END
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