nvidia::apex::ExplicitHierarchicalMesh::ConvexHull Class Reference

#include <ExplicitHierarchicalMesh.h>

List of all members.

Public Member Functions
virtual void	buildFromPoints (const void *points, uint32_t numPoints, uint32_t pointStrideBytes)=0
virtual const PxBounds3 &	getBounds () const =0
virtual float	getVolume () const =0
virtual uint32_t	getVertexCount () const =0
virtual PxVec3	getVertex (uint32_t vertexIndex) const =0
virtual uint32_t	getEdgeCount () const =0
virtual PxVec3	getEdgeEndpoint (uint32_t edgeIndex, uint32_t whichEndpoint) const =0
virtual uint32_t	getPlaneCount () const =0
virtual PxPlane	getPlane (uint32_t planeIndex) const =0
virtual bool	rayCast (float &in, float &out, const PxVec3 &orig, const PxVec3 &dir, const PxTransform &localToWorldRT, const PxVec3 &scale, PxVec3 *normal=NULL) const =0
virtual bool	reduceHull (uint32_t maxVertexCount, uint32_t maxEdgeCount, uint32_t maxFaceCount, bool inflated)=0
virtual void	release ()=0

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Detailed Description

Used to access the collision data for each mesh part

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Member Function Documentation

virtual void nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::buildFromPoints	(	const void *	points,
		uint32_t	numPoints,
		uint32_t	pointStrideBytes
	)		[pure virtual]

Builds the convex hull of the points given.

virtual const PxBounds3& nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::getBounds

(

)

const [pure virtual]

The hull's axis aligned bounding box.

virtual uint32_t nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::getEdgeCount

(

)

const [pure virtual]

This is the number of edges in the convex hull.

virtual PxVec3 nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::getEdgeEndpoint	(	uint32_t	edgeIndex,
		uint32_t	whichEndpoint
	)		const [pure virtual]

This is an edge endpoint indexed by edgeIndex, which must in the range [0, getEdgeCount()-1], and whichEndpoint, which must be 0 or 1.

virtual PxPlane nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::getPlane

(

uint32_t

planeIndex

)

const [pure virtual]

This is the plane indexed by planeIndex, which must in the range [0, getPlaneCount()-1].

virtual uint32_t nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::getPlaneCount

(

)

const [pure virtual]

This is the number of planes which bound the convex hull.

virtual PxVec3 nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::getVertex

(

uint32_t

vertexIndex

)

const [pure virtual]

This is the vertex indexed by vertexIndex, which must in the range [0, getVertexCount()-1].

virtual uint32_t nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::getVertexCount

(

)

const [pure virtual]

This is the number of vertices in the convex hull.

virtual float nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::getVolume

(

)

const [pure virtual]

The hull's volume.

virtual bool nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::rayCast	(	float &	in,
		float &	out,
		const PxVec3 &	orig,
		const PxVec3 &	dir,
		const PxTransform &	localToWorldRT,
		const PxVec3 &	scale,
		PxVec3 *	normal = NULL
	)		const [pure virtual]

Perform a ray cast against the convex hull.

Parameters:

in	this MUST be set to the minimum 'time' that you wish to have reported for intersection. you may consider this an origin offset for the ray. On exit, if the hull is intersected, this value will contain the time of intersection, or its original value, which ever is larger.
out	this MUST be set to the maximum 'time' that you wish to have reported for intersection. you may consider this the endpoint of a line segment intersection. On exit, if the hull is intersected, this value will contain the time that the ray exits the hull, or its original value, which ever is smaller.
orig	describe the ray to intersect with the convex hull.
dir	describe the ray to intersect with the convex hull.
localToWorldRT	the rotation applied to the convex hull.
scale	the scale applied to the convex hull.
normal	if not NULL, *normal will contain the surface normal of the convex hull at the point of intersection (at the 'in' time). If the point on the ray at the 'in' time lies within the volume of the convex hull, then *normal will be set to (0,0,0).

Returns:

returns true if the line segment described by the user's supplied 'in' and 'out' parameters along the ray intersects the convex hull, false otherwise.

virtual bool nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::reduceHull	(	uint32_t	maxVertexCount,
		uint32_t	maxEdgeCount,
		uint32_t	maxFaceCount,
		bool	inflated
	)		[pure virtual]

Removes vertices from the hull until the bounds given in the function's parameters are met. If inflated = true, then the maximum counts given are compared with the cooked hull, which may have higher counts due to beveling.

Note:

a value of zero indicates no limit, effectively infinite.

Returns:

true if successful, i.e. the limits were met. False otherwise.

virtual void nvidia::apex::ExplicitHierarchicalMesh::ConvexHull::release

(

)

[pure virtual]

Releases all memory associated with this object and deletes itself.

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

• ExplicitHierarchicalMesh.h