63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
/*
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This file is part of Nori, a simple educational ray tracer
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Copyright (c) 2015 by Wenzel Jakob
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Nori is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License Version 3
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as published by the Free Software Foundation.
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Nori is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <nori/bsdf.h>
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#include <nori/frame.h>
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NORI_NAMESPACE_BEGIN
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/// Ideal dielectric BSDF
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class Dielectric : public BSDF {
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public:
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Dielectric(const PropertyList &propList) {
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/* Interior IOR (default: BK7 borosilicate optical glass) */
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m_intIOR = propList.getFloat("intIOR", 1.5046f);
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/* Exterior IOR (default: air) */
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m_extIOR = propList.getFloat("extIOR", 1.000277f);
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}
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Color3f eval(const BSDFQueryRecord &) const {
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/* Discrete BRDFs always evaluate to zero in Nori */
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return Color3f(0.0f);
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}
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float pdf(const BSDFQueryRecord &) const {
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/* Discrete BRDFs always evaluate to zero in Nori */
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return 0.0f;
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}
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Color3f sample(BSDFQueryRecord &bRec, const Point2f &sample) const {
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throw NoriException("Unimplemented!");
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}
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std::string toString() const {
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return tfm::format(
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"Dielectric[\n"
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" intIOR = %f,\n"
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" extIOR = %f\n"
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"]",
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m_intIOR, m_extIOR);
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}
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private:
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float m_intIOR, m_extIOR;
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};
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NORI_REGISTER_CLASS(Dielectric, "dielectric");
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NORI_NAMESPACE_END
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