This class provides the public API for intersecting a ray with a narrow-band level set. More...

#include <RayIntersector.h>

Public Types
using	GridType = GridT

using	RayType = RayT

using	RealType = typename RayT::RealType

using	Vec3Type = typename RayT::Vec3T

using	ValueT = typename GridT::ValueType

using	TreeT = typename GridT::TreeType

Public Member Functions
	LevelSetRayIntersector (const GridT &grid, const ValueT &isoValue=zeroVal< ValueT >())
	Constructor. More...

const ValueT &	getIsoValue () const
	Return the iso-value used for ray-intersections. More...

bool	intersectsIS (const RayType &iRay) const
	Return `true` if the index-space ray intersects the level set. More...

bool	intersectsIS (const RayType &iRay, RealType &iTime) const
	Return `true` if the index-space ray intersects the level set. More...

bool	intersectsIS (const RayType &iRay, Vec3Type &xyz) const
	Return `true` if the index-space ray intersects the level set. More...

bool	intersectsIS (const RayType &iRay, Vec3Type &xyz, RealType &iTime) const
	Return `true` if the index-space ray intersects the level set. More...

bool	intersectsWS (const RayType &wRay) const
	Return `true` if the world-space ray intersects the level set. More...

bool	intersectsWS (const RayType &wRay, RealType &wTime) const
	Return `true` if the world-space ray intersects the level set. More...

bool	intersectsWS (const RayType &wRay, Vec3Type &world) const
	Return `true` if the world-space ray intersects the level set. More...

bool	intersectsWS (const RayType &wRay, Vec3Type &world, RealType &wTime) const
	Return `true` if the world-space ray intersects the level set. More...

bool	intersectsWS (const RayType &wRay, Vec3Type &world, Vec3Type &normal) const
	Return `true` if the world-space ray intersects the level set. More...

bool	intersectsWS (const RayType &wRay, Vec3Type &world, Vec3Type &normal, RealType &wTime) const
	Return `true` if the world-space ray intersects the level set. More...

Detailed Description

template<typename GridT, typename SearchImplT = LinearSearchImpl<GridT>, int NodeLevel = GridT::TreeType::RootNodeType::ChildNodeType::LEVEL, typename RayT = math::Ray<Real>>
class openvdb::v8_2::tools::LevelSetRayIntersector< GridT, SearchImplT, NodeLevel, RayT >

This class provides the public API for intersecting a ray with a narrow-band level set.

It wraps a SearchImplT with a simple public API and performs the actual hierarchical tree node and voxel traversal.

Warning: Use the (default) copy-constructor to make sure each computational thread has their own instance of this class. This is important since the SearchImplT contains a ValueAccessor that is not thread-safe. However copying is very efficient.

See also: tools/RayTracer.h for examples of intended usage.

Member Typedef Documentation

using GridType = GridT

using RayType = RayT

using RealType = typename RayT::RealType

using TreeT = typename GridT::TreeType

using ValueT = typename GridT::ValueType

using Vec3Type = typename RayT::Vec3T

Constructor & Destructor Documentation

LevelSetRayIntersector	(	const GridT &	grid,
		const ValueT &	isoValue = `zeroVal<ValueT>()`
	)

inline

Constructor.

Parameters

grid	level set grid to intersect rays against.
isoValue	optional iso-value for the ray-intersection.

Member Function Documentation

const ValueT& getIsoValue ( ) const

inline

Return the iso-value used for ray-intersections.

bool intersectsIS ( const RayType & iRay ) const

inline

Return true if the index-space ray intersects the level set.

Parameters

iRay	ray represented in index space.

bool intersectsIS	(	const RayType &	iRay,
		RealType &	iTime
	)		const

inline

Return true if the index-space ray intersects the level set.

Parameters

iRay	ray represented in index space.
iTime	if an intersection was found it is assigned the time of the intersection along the index ray.

bool intersectsIS	(	const RayType &	iRay,
		Vec3Type &	xyz
	)		const

inline

Return true if the index-space ray intersects the level set.

Parameters

iRay	ray represented in index space.
xyz	if an intersection was found it is assigned the intersection point in index space, otherwise it is unchanged.

bool intersectsIS	(	const RayType &	iRay,
		Vec3Type &	xyz,
		RealType &	iTime
	)		const

inline

Return true if the index-space ray intersects the level set.

Parameters

iRay	ray represented in index space.
xyz	if an intersection was found it is assigned the intersection point in index space, otherwise it is unchanged.
iTime	if an intersection was found it is assigned the time of the intersection along the index ray.

bool intersectsWS ( const RayType & wRay ) const

inline