Axis-Aligned Bounding Box. Rect3 consists of a position, a size, and several utility functions. It is typically used for fast overlap tests. Optional constructor, accepts position and size. Returns [code]true[/code] if this [code]Rect3[/code] completely encloses another one. Returns this [code]Rect3[/code] expanded to include a given point. Gets the area of the [code]Rect3[/code]. Gets the position of the 8 endpoints of the [code]Rect3[/code] in space. Returns the normalized longest axis of the [code]Rect3[/code]. Returns the index of the longest axis of the [code]Rect3[/code] (according to [Vector3]::AXIS* enum). Returns the scalar length of the longest axis of the [code]Rect3[/code]. Returns the normalized shortest axis of the [code]Rect3[/code]. Returns the index of the shortest axis of the [code]Rect3[/code] (according to [Vector3]::AXIS* enum). Returns the scalar length of the shortest axis of the [code]Rect3[/code]. Returns the support point in a given direction. This is useful for collision detection algorithms. Returns a copy of the [code]Rect3[/code] grown a given amount of units towards all the sides. Returns [code]true[/code] if the [code]Rect3[/code] is flat or empty. Returns [code]true[/code] if the [code]Rect3[/code] is empty. Returns [code]true[/code] if the [code]Rect3[/code] contains a point. Returns the intersection between two [code]Rect3[/code]. An empty Rect3 (size 0,0,0) is returned on failure. Returns [code]true[/code] if the [code]Rect3[/code] overlaps with another. Returns [code]true[/code] if the [code]Rect3[/code] is on both sides of a plane. Returns [code]true[/code] if the [code]Rect3[/code] intersects the line segment between [code]from[/code] and [code]to[/code]. Returns a larger Rect3 that contains this Rect3 and [code]with[/code]. Ending corner. Beginning corner. Size from position to end.