Pixel-Composer/scripts/d3d_plane/d3d_plane.gml
2023-08-22 11:51:45 +02:00

20 lines
490 B
Plaintext

function __plane(origin, normal) constructor {
self.origin = origin;
self.normal = normal.normalize();
}
#region functions
function d3d_intersect_ray_plane(ray, plane) {
//print($"Intersect {ray}\n\tto {plane}");
var det = plane.normal.dot(ray.direction);
if(det == 0) return new __vec3();
var rayToPlane = plane.origin.subtract(ray.origin);
var t = rayToPlane.dot(plane.normal) / det;
if(t < 0) return new __vec3();
return ray.sampleDistance(t);
}
#endregion