58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
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/*
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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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#pragma once
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#include <nori/warp.h>
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#include <nori/bitmap.h>
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#include <map>
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NORI_NAMESPACE_BEGIN
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/**
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* \brief MIPMAP Class
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*/
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struct Mipmap {
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public:
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Mipmap(){};
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Mipmap(const std::string &filename);
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float get(size_t x, size_t y, size_t size) const;
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Color3f getColor(float x, float y) const;
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size_t getSize() const {
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return m_size;
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}
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float getPDFF() const {
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return m_size*m_size;
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}
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private:
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Bitmap m_img;
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size_t m_size;
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float* m_mm;
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float m_maxv;
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std::map<size_t,float*> m_stp;
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void fill_mm(size_t size);
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};
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NORI_NAMESPACE_END
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