81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
/*
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This file is part of Mitsuba, a physically based rendering system.
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Copyright (c) 2007-2010 by Wenzel Jakob and others.
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Mitsuba 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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Mitsuba 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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#if !defined(__VOLUME_H)
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#define __VOLUME_H
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#include <mitsuba/core/cobject.h>
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#include <mitsuba/core/aabb.h>
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MTS_NAMESPACE_BEGIN
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/**
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* Generalized source of volumetric information
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*/
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class MTS_EXPORT_RENDER VolumeDataSource : public ConfigurableObject {
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public:
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/// Serialize to a binary data stream.
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virtual void serialize(Stream *stream, InstanceManager *manager) const;
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/// Return the bounding box
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inline const AABB &getAABB() const {
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return m_aabb;
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}
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/// Are float-valued lookups permitted?
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virtual bool supportsFloatLookups() const;
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/// Look up a floating point value by position
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virtual Float lookupFloat(const Point &p) const;
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/// Are spectrum-valued lookups permitted?
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virtual bool supportsSpectrumLookups() const;
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/// Look up a spectrum value by position
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virtual Spectrum lookupSpectrum(const Point &p) const;
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/// Are vector-valued lookups permitted?
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virtual bool supportsVectorLookups() const;
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/// Look up a vector value by position
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virtual Vector lookupVector(const Point &p) const;
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/**
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* Returns the recommended step size for numerical
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* integration or inifinity if this is not known/applicable
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*/
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virtual Float getStepSize() const = 0;
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MTS_DECLARE_CLASS()
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protected:
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/// Virtual destructor
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virtual ~VolumeDataSource();
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/// Protected constructor
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VolumeDataSource(const Properties &props);
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/// Unserialize from a binary data stream
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VolumeDataSource(Stream *stream, InstanceManager *manager);
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protected:
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AABB m_aabb;
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};
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MTS_NAMESPACE_END
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#endif /* __VOLUME_H */
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