kite3d/io.github.yuroyami.kite3d.math/Triangle/Companion

Companion

object Companion(source)

Functions

fun containsPoint(point: Vector3, a: Vector3, b: Vector3, c: Vector3): Boolean

Returns true if the given point, when projected onto the plane of the triangle, lies within the triangle.

fun getBarycoord(point: Vector3, a: Vector3, b: Vector3, c: Vector3, target: Vector3): Vector3?

Computes the barycentric coordinates of point in the triangle. Returns null (and sets target to zero) if the triangle is degenerate.

getInterpolatedAttribute

fun getInterpolatedAttribute(attr: AttributeLike, i1: Int, i2: Int, i3: Int, barycoord: Vector3, target: Vector3): Vector3

Computes the value barycentrically interpolated for the given attribute and indices.

getInterpolation

fun getInterpolation(point: Vector3, p1: Vector3, p2: Vector3, p3: Vector3, v1: Vector3, v2: Vector3, v3: Vector3, target: Vector3): Vector3?

Computes the value barycentrically interpolated for the given point on the triangle. Returns null if the triangle is degenerate.

fun getNormal(a: Vector3, b: Vector3, c: Vector3, target: Vector3): Vector3

Computes the normal vector of a triangle.

fun isFrontFacing(a: Vector3, b: Vector3, c: Vector3, direction: Vector3): Boolean

Returns true if the triangle is oriented towards the given direction.