KBE3D / KBCore / Cesium / IntersectionTests / rayTriangleParametric

函数: rayTriangleParametric()

rayTriangleParametric(ray: Ray, p0: Cartesian3, p1: Cartesian3, p2: Cartesian3, cullBackFaces?: boolean): number

Computes the intersection of a ray and a triangle as a parametric distance along the input ray. The result is negative when the triangle is behind the ray.

Implements MinimumStorage RayTriangle Intersection.pdf | Fast Minimum Storage Ray/Triangle Intersection

by Tomas Moller and Ben Trumbore.

参数

ray

Ray

The ray.

p0

Cartesian3

The first vertex of the triangle.

p1

Cartesian3

The second vertex of the triangle.

p2

Cartesian3

The third vertex of the triangle.

cullBackFaces?

boolean

If <code>true</code>, will only compute an intersection with the front face of the triangle and return undefined for intersections with the back face.

返回

number

The intersection as a parametric distance along the ray, or undefined if there is no intersection.