class HullFrustum in Tinman.Terrain.Meshing

The HullFrustum class consumes a point soup in terrain-space, transforms it to frustum-space, computes the convex hull in the XY-plane and extrudes the hull along the Z-axis to obtain the final hull frustum.

sealed class

HullFrustum

implements

IFrustum

Public / Attributes

Hull

The vertices of the convex hull, in frustum-space.

public property	Hull { get }
type	IVectorConst<Vec2D>
value	[not-null]	The convex hull vertices.

Matrix

The matrix that transforms from terrain-space to frustum-space.

public property	Matrix { get set }
type	Mat4D
value		The transformation matrix.

PlaneCount

The number of frustum planes.

public property	PlaneCount { get }
type	int32
value	[0..31]	The number of frustum planes.
implements	IFrustum.PlaneCount

Remarks:

If a frustum has a plane count of zero, it contains all space.

Public / Constructors

HullFrustum

Creates a new instance of HullFrustum.

public constructor

HullFrustum ()

Public / Methods

Clear

public method

Clear ()

Compute

Compute the hull frustum from the given point soup.

public method	Compute (IArrayVector<Vec3D> pointSoup, int32 maxPlaneCount = 30)
params	pointSoup	[not-null]	The point soup, in terrain-space.
	maxPlaneCount	[0..30]	The maximum number of frustum planes to use. Defaults to 30.

Remarks:

The frustum plane at index zero is the far clipping plane.

PlaneAt

Returns the index-th frustum plane.

public method	PlaneAt (int32 index)
type	Plane
params	index	[0..PlaneCount-1]	The frustum plane index.
returns			The frustum plane.
implements	IFrustum.PlaneAt