ph::PLatLong01Sphere Class Reference

#include <PLatLong01Sphere.h>

Inheritance diagram for ph::PLatLong01Sphere:

Public Member Functions
	PLatLong01Sphere (real radius)
void	calcHitDetail (const Ray &ray, HitProbe &probe, HitDetail *out_detail) const override
	Calculates properties of a hit, such as coordinates and normal.
void	genPosSample (PrimitivePosSampleQuery &query, SampleFlow &sampleFlow, HitProbe &probe) const override
	Generates a sample point on the surface of this primitive.
void	calcPosPdf (PrimitivePosPdfQuery &query) const override
	Given a point on the surface of this primitive, calculates the PDF of sampling this point.
math::Vector2R	posToUV (const math::Vector3R &position) const
	Maps a position on the sphere surface to UV coordinates (lat-long-01 format).
Public Member Functions inherited from ph::PBasicSphere
	PBasicSphere (real radius)
bool	isIntersecting (const Ray &ray, HitProbe &probe) const override
	Determine whether a given ray hits the object.
bool	reintersect (const Ray &ray, HitProbe &probe, const Ray &srcRay, HitProbe &srcProbe) const override
	Intersect the intersected object again with a different ray.
bool	mayOverlapVolume (const math::AABB3D &volume) const override
	Conservatively checks whether this object overlaps a volume.
math::AABB3D	calcAABB () const override
	Calculates Axis-Aligned Bounding Box (AABB) of itself.
real	calcExtendedArea () const override
	Calculates the area extended by this primitive. The term "extended" implies single-sided, e.g., a triangle's extended area is half the absolute value of the cross product of its two edge vectors. To treat it as double-sided, you need to multiply the result by 2 manually.
real	getRadius () const
real	getRcpRadius () const
Public Member Functions inherited from ph::Primitive
virtual const PrimitiveMetadata *	getMetadata () const
Public Member Functions inherited from ph::Intersectable
virtual	~Intersectable ()=default
virtual bool	isOccluding (const Ray &ray) const
	Determines whether this object blocks the ray.

Additional Inherited Members
Protected Member Functions inherited from ph::PBasicSphere
auto	getRefinedSurfaceAndNormal (const math::Vector3R &srcSurface) const -> std::pair< math::Vector3R, math::Vector3R >

Constructor & Destructor Documentation

PLatLong01Sphere()

ph::PLatLong01Sphere::PLatLong01Sphere ( real radius )

explicit

Member Function Documentation

calcHitDetail()

void ph::PLatLong01Sphere::calcHitDetail ( const Ray & ray, HitProbe & probe, HitDetail * out_detail ) const

overridevirtual

Calculates properties of a hit, such as coordinates and normal.

This method calculates a detailed description of a hit from the ray and probe involved in a hit event. For example, the ray and probe used for calling isIntersecting() can be the inputs of this method (if an intersection is found). The process of calculating intersection detail will destroy the input probe.

Parameters

ray	The ray from a hit event.
probe	The probe from a hit event. The process of detail calculation will destroy the probe.
out_detail	Stores the calculated details. This method calculates the essential details only. Some information such as coordinate bases will only be available if specifically requested afterwards (for an example, see HitDetail::computeBases()).

Note

See Primitive for more methods that can generate a hit event.

Warning

This method will destroy the probe.

Implements ph::PBasicSphere.

calcPosPdf()

void ph::PLatLong01Sphere::calcPosPdf ( PrimitivePosPdfQuery & query ) const

overridevirtual

Given a point on the surface of this primitive, calculates the PDF of sampling this point.

Reimplemented from ph::Primitive.

genPosSample()

void ph::PLatLong01Sphere::genPosSample ( PrimitivePosSampleQuery & query, SampleFlow & sampleFlow, HitProbe & probe ) const

overridevirtual

Generates a sample point on the surface of this primitive.

Note

Generates hit event (with PrimitivePosSampleOutput::getObservationRay() and probe).

Reimplemented from ph::Primitive.

posToUV()

math::Vector2R ph::PLatLong01Sphere::posToUV

(

const math::Vector3R &

position

)

const

Maps a position on the sphere surface to UV coordinates (lat-long-01 format).

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The documentation for this class was generated from the following files:

• Source/Core/Intersection/PLatLong01Sphere.h
• Source/Core/Intersection/PLatLong01Sphere.cpp