PointInfo

Creates a new instance of PointInfo.

Clears all flags of this point info object and resets all values.

Computes missing point info values based on the available input data.

The terrain-space elevation.

If the given value ⁱⁿ is not a number (see Maths.IsNumber), the corresponding point info flag flag will be cleared.

The cubemap face of the triangle that contains the point (derived from PointInfoFlags.Heightmap and Vertices).

A bitmask that indicates which values have been computed and are thus valid.

Heightmap coordinates of the picked point, relative to HeightmapsUtil.MaxSize.

If the given value ⁱⁿ is undefined (see Vec3D.IsUndefined), the corresponding point info flag flag will be cleared.

Unit-length terrain-space normal vector.

The point position, in terrain-space.

The mesh sector that contains the picked point.

Indices of vertices of picked triangle.

The vertices of the picked triangle are oriented so that the vector cross(Y-X, Z-X) points into the direction of the triangle face normal.

The barycentric coordinates (range [0..1]) of picked point in picked triangle.

If the given value ⁱⁿ is undefined (see Vec3D.IsUndefined), the corresponding point info flag flag will be cleared.

The picked point can be expressed using barycentric coordinates as follows:

where
p := the picked point
A := first vertex of picked triangle
B := second vertex of picked triangle
C := third vertex of picked triangle
w1 := first barycentric coordinate of picked point in picked triangle ( Vec3D.X)
w2 := second barycentric coordinate of picked point in picked triangle ( Vec3D.Y)
w3 := third barycentric coordinate of picked point in picked triangle ( Vec3D.Z)

The sum of the barycentric coordinates is always 1.0 (i.e. w1 + w2 + w3 = 1).