Mesh shape is intended for debugging and for collision detection. More...

Inherits G3D::Shape.

Public Member Functions
	MeshShape (const Array< Vector3 > &vertex, const Array< int > &index)
	Copies the geometry from the arrays. More...

	MeshShape (const String &filename, float scale=1.0f)

	MeshShape (const CPUVertexArray &vertexArray, const Array< Tri > &tri)
	Copies the triangle array. More...

	MeshShape (const class ParseOBJ &parseOBJ)

virtual float	area () const
	Slow the first time it is called because the BSP tree must be computed. More...

virtual CoordinateFrame &	axes ()

virtual AABox	boundingAABox () const
	Bounding axis aligned box of this object. More...

virtual Sphere	boundingSphere () const
	Bounding sphere of this object. More...

virtual Box &	box ()

virtual const Box &	box () const

virtual const shared_ptr< TriTree > &	bspTree () const
	Not computed until the first call to bspTree, area, or getRandomSurfacePoint. More...

virtual Capsule &	capsule ()

virtual const Capsule &	capsule () const

virtual Vector3	center () const
	Center of mass for this object. More...

virtual Cylinder &	cylinder ()

virtual const Cylinder &	cylinder () const

virtual void	getRandomSurfacePoint (Vector3 &P, Vector3 &N=Vector3::ignore, Random &rnd=Random::common()) const
	A point selected uniformly at random with respect to the surface area of this object. More...

virtual void	getRandomSurfacePoint (Vector3 &P, Vector3 &N, int &triangleStartIndex, Vector3 &barycentricWeights, Random &rnd=Random::common()) const

const Array< int > &	indexArray () const
	Tri-list index array into vertexArray(). More...

virtual Plane &	plane ()

virtual const Plane &	plane () const

virtual Vector3 &	point ()

virtual const Vector3 &	point () const

virtual Vector3	randomInteriorPoint (Random &rnd=Random::common()) const
	Returns a point on the surface. More...

virtual Ray &	ray ()

virtual const Ray &	ray () const

virtual void	render (RenderDevice *rd, const CoordinateFrame &cframe, Color4 solidColor=Color4(0.5f, 0.5f, 0, 0.5f), Color4 wireColor=Color3::black())

virtual Sphere &	sphere ()

virtual const Sphere &	sphere () const

virtual Triangle &	triangle ()

virtual const Triangle &	triangle () const

virtual Type	type () const

const Array< Vector3 > &	vertexArray () const

virtual float	volume () const
	No volume; Mesh is treated as a 2D surface. More...

Static Public Member Functions
static String	typeToString (Type t)

Static Protected Member Functions
template<class T , class ... ArgTypes>
static shared_ptr< T >	createShared (ArgTypes &&... args)
	Like std::make_shared, but works for protected constructors. More...

Detailed Description

Mesh shape is intended for debugging and for collision detection.

It is not a general purpose mesh.

See also: G3D::Surface, G3D::ArticulatedModel, G3D::IFSModel, G3D::MD2Model, G3D::MeshAlg

Constructor & Destructor Documentation

◆ MeshShape() [1/4]

G3D::MeshShape::MeshShape	(	const Array< Vector3 > &	vertex,
		const Array< int > &	index
	)

Copies the geometry from the arrays.

The index array must describe a triangle list; you can convert other primitives using the MeshAlg methods.

◆ MeshShape() [2/4]

G3D::MeshShape::MeshShape	(	const String &	filename,
		float	scale = `1.0f`
	)

explicit

◆ MeshShape() [3/4]

G3D::MeshShape::MeshShape	(	const CPUVertexArray &	vertexArray,
		const Array< Tri > &	tri
	)

Copies the triangle array.

◆ MeshShape() [4/4]

G3D::MeshShape::MeshShape ( const class ParseOBJ & parseOBJ )

explicit

Member Function Documentation

◆ area()

virtual float G3D::MeshShape::area ( ) const

virtual

Slow the first time it is called because the BSP tree must be computed.

Implements G3D::Shape.

◆ axes()

virtual CoordinateFrame& G3D::Shape::axes ( )

inlinevirtualinherited

Reimplemented in G3D::AxesShape.

◆ boundingAABox()

virtual AABox G3D::MeshShape::boundingAABox ( ) const

virtual

Bounding axis aligned box of this object.

Implements G3D::Shape.

◆ boundingSphere()

virtual Sphere G3D::MeshShape::boundingSphere ( ) const

virtual

Bounding sphere of this object.

Implements G3D::Shape.

◆ box() [1/2]

virtual Box& G3D::Shape::box ( )

inlinevirtualinherited

Reimplemented in G3D::BoxShape.

◆ box() [2/2]

virtual const Box& G3D::Shape::box ( ) const

inlinevirtualinherited

Reimplemented in G3D::BoxShape.

◆ bspTree()

virtual const shared_ptr<TriTree>& G3D::MeshShape::bspTree ( ) const

inlinevirtual

Not computed until the first call to bspTree, area, or getRandomSurfacePoint.

◆ capsule() [1/2]

virtual Capsule& G3D::Shape::capsule ( )

inlinevirtualinherited

Reimplemented in G3D::CapsuleShape.

◆ capsule() [2/2]

virtual const Capsule& G3D::Shape::capsule ( ) const

inlinevirtualinherited

Reimplemented in G3D::CapsuleShape.

◆ center()

virtual Vector3 G3D::MeshShape::center ( ) const

virtual

Center of mass for this object.

Implements G3D::Shape.

◆ createShared()

template<class T , class ... ArgTypes>

static shared_ptr<T> G3D::ReferenceCountedObject::createShared ( ArgTypes &&... args )

inlinestaticprotectedinherited

Like std::make_shared, but works for protected constructors.

Call as createShared<myclass>.

◆ cylinder() [1/2]

virtual Cylinder& G3D::Shape::cylinder ( )

inlinevirtualinherited

Reimplemented in G3D::CylinderShape.

◆ cylinder() [2/2]

virtual const Cylinder& G3D::Shape::cylinder ( ) const

inlinevirtualinherited

Reimplemented in G3D::CylinderShape.

◆ getRandomSurfacePoint() [1/2]

virtual void G3D::MeshShape::getRandomSurfacePoint	(	Vector3 &	P,
		Vector3 &	N = `Vector3::ignore`,
		Random &	rnd = `Random::common()`
	)		const

virtual

A point selected uniformly at random with respect to the surface area of this object.

Not available on the Plane or Ray, which have infinite extent. The normal has unit length and points out of the surface.

Implements G3D::Shape.

◆ getRandomSurfacePoint() [2/2]

virtual void G3D::MeshShape::getRandomSurfacePoint	(	Vector3 &	P,
		Vector3 &	N,
		int &	triangleStartIndex,
		Vector3 &	barycentricWeights,
		Random &	rnd = `Random::common()`
	)		const

virtual

Parameters

triangleStartIndex The first element of the index array describing this triangle. The next two indices are the others defining the returned triangle.

◆ indexArray()

const Array<int>& G3D::MeshShape::indexArray ( ) const

inlinevirtual

Tri-list index array into vertexArray().

Reimplemented from G3D::Shape.

◆ plane() [1/2]

virtual Plane& G3D::Shape::plane ( )

inlinevirtualinherited

Reimplemented in G3D::PlaneShape.

◆ plane() [2/2]

virtual const Plane& G3D::Shape::plane ( ) const

inlinevirtualinherited

Reimplemented in G3D::PlaneShape.

◆ point() [1/2]

virtual Vector3& G3D::Shape::point ( )

inlinevirtualinherited

Reimplemented in G3D::PointShape.

◆ point() [2/2]

virtual const Vector3& G3D::Shape::point ( ) const

inlinevirtualinherited

Reimplemented in G3D::PointShape, and G3D::ArrowShape.

◆ randomInteriorPoint()

virtual Vector3 G3D::MeshShape::randomInteriorPoint ( Random & rnd = Random::common() ) const

virtual

Returns a point on the surface.

The process is done by random sampling and will only sample a set number of points. If none of the points sampled are found to be on the interior of the mesh than a nan value is returned. If this function consitently returns a nan value, it is probaly because the mesh shape is poorly constructed

Implements G3D::Shape.

◆ ray() [1/2]

virtual Ray& G3D::Shape::ray ( )

inlinevirtualinherited

Reimplemented in G3D::RayShape.

◆ ray() [2/2]

virtual const Ray& G3D::Shape::ray ( ) const

inlinevirtualinherited

Reimplemented in G3D::RayShape.

◆ render()

virtual void G3D::MeshShape::render	(	RenderDevice *	rd,
		const CoordinateFrame &	cframe,
		Color4	solidColor = `Color4(0.5f, 0.5f, 0, 0.5f)`,
		Color4	wireColor = `Color3::black()`
	)

virtual

Implements G3D::Shape.

◆ sphere() [1/2]

virtual Sphere& G3D::Shape::sphere ( )

inlinevirtualinherited

Reimplemented in G3D::SphereShape.

◆ sphere() [2/2]

virtual const Sphere& G3D::Shape::sphere ( ) const

inlinevirtualinherited

Reimplemented in G3D::SphereShape.

◆ triangle() [1/2]

virtual Triangle& G3D::Shape::triangle ( )

inlinevirtualinherited

Reimplemented in G3D::TriangleShape.

◆ triangle() [2/2]

virtual const Triangle& G3D::Shape::triangle ( ) const

inlinevirtualinherited

Reimplemented in G3D::TriangleShape.

◆ type()

virtual Type G3D::MeshShape::type ( ) const

inlinevirtual

Implements G3D::Shape.

◆ typeToString()

static String G3D::Shape::typeToString ( Type t )

staticinherited

◆ vertexArray()

const Array<Vector3>& G3D::MeshShape::vertexArray ( ) const

inlinevirtual

Reimplemented from G3D::Shape.

◆ volume()

virtual float G3D::MeshShape::volume ( ) const

virtual

No volume; Mesh is treated as a 2D surface.

Implements G3D::Shape.

Public Member Functions

Static Public Member Functions

Static Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ MeshShape() [1/4]

◆ MeshShape() [2/4]

◆ MeshShape() [3/4]

◆ MeshShape() [4/4]

Member Function Documentation

◆ area()

◆ axes()

◆ boundingAABox()

◆ boundingSphere()

◆ box() [1/2]

◆ box() [2/2]

◆ bspTree()

◆ capsule() [1/2]

◆ capsule() [2/2]

◆ center()

◆ createShared()

◆ cylinder() [1/2]

◆ cylinder() [2/2]

◆ getRandomSurfacePoint() [1/2]

◆ getRandomSurfacePoint() [2/2]

◆ indexArray()

◆ plane() [1/2]

◆ plane() [2/2]

◆ point() [1/2]

◆ point() [2/2]

◆ randomInteriorPoint()

◆ ray() [1/2]

◆ ray() [2/2]

◆ render()

◆ sphere() [1/2]

◆ sphere() [2/2]

◆ triangle() [1/2]

◆ triangle() [2/2]

◆ type()

◆ typeToString()

◆ vertexArray()

◆ volume()