Пример #1
0
        public bool Intersects(Triangle3 triangle)
        {
            var v0 = triangle.point2 - triangle.point1;
            var v1 = triangle.point3 - triangle.point1;
            var v2 = this - triangle.point1;

            float dot00 = v0.Dot();
            float dot01 = v0.Dot(v1);
            float dot02 = v0.Dot(v2);
            float dot11 = v1.Dot();
            float dot12 = v1.Dot(v2);

            float invDenom = 1 / ((dot00 * dot11) - (dot01 * dot01));
            float u        = ((dot11 * dot02) - (dot01 * dot12)) * invDenom;
            float v        = ((dot00 * dot12) - (dot01 * dot02)) * invDenom;

            return((u > 0) && (v > 0) && ((u + v) < 1));
        }
Пример #2
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 public bool IntersectTriangle(Triangle3 triangle, out Vec3 intersectionPoint)
 {
     return(IntersectTriangle(triangle, triangle.Normal(), out intersectionPoint));
 }
Пример #3
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 public bool IntersectTriangle(Triangle3 triangle, Vec3 triangleNormal, out Vec3 intersectionPoint)
 {
     return(IntersectTriangle(triangle.point1, triangle.point2, triangle.point3, triangleNormal, out intersectionPoint));
 }
Пример #4
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 public bool WithinTriangle(Triangle3 triangle)
 {
     return(WithinTriangle(triangle.point1, triangle.point2, triangle.point3));
 }