44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
#pragma once
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#include "software_global.h"
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namespace paysages {
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namespace software {
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/**
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* Abstract class to handle intersection with a ray.
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*/
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class SOFTWARESHARED_EXPORT RayIntersector {
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public:
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RayIntersector();
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virtual ~RayIntersector();
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/**
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* Get the priority of this intersector.
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*
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* Higher priority intersectors are tested first, and should be the easy ones.
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*/
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virtual int getPriority() const;
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/**
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* Find the nearest intersection with the ray (within *limit* length).
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*
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* By default, it will perform ray marching, using isInside as intersection checker.
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*/
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virtual bool findIntersection(const Vector3 &eye, const Vector3 &direction, double limit, Vector3 *out_hit) const;
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/**
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* Indicate if a given location is inside a solid volume.
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*/
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virtual bool isInside(const Vector3 &location, double *out_distance = nullptr) const;
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/**
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* Get the incident color for a ray intersection at a given hit point.
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*
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* This should already have lighting apply, but not medium traversal between *eye* and *location*.
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*/
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virtual Color getColorAtHit(const Vector3 &eye, const Vector3 &location) const;
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};
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}
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}
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