TerrainDisplay.Collision.BSPTree.IntersectsWith C# (CSharp) Method

        internal bool IntersectsWith(ref Ray ray, ref float tMax, Vector3[] vertices)
        {
            var rayCopy = ray;

            var dist = float.MaxValue;

            VisitNodes(rootId, ref ray, ref tMax, (node) =>
            {
                if (node == null) return;
                if (node.TriIndices.Length == 0) return;
                foreach (var tri in node.TriIndices)
                {
                    var v1 = vertices[tri.Index0];
                    var v2 = vertices[tri.Index1];
                    var v3 = vertices[tri.Index2];

                    float newDist;
                    if (!Intersection.RayTriangleIntersect(rayCopy, v1, v2, v3, out newDist)) continue;

                    //Collision happens behind the startPos
                    if (newDist < 0.0f) continue;

                    dist = Math.Min(dist, newDist);
                }
            });

            return (dist < tMax);
        }