Function ExtrudeShape

Creates an extruded shape mesh. The extrusion is a parametric shape. It has no predefined shape. Its final shape will depend on the input parameters.

• The parameter shape is a required array of successive Vector3. This array depicts the shape to be extruded in its local space : the shape must be designed in the xOy plane and will be extruded along the Z axis.
• The parameter path is a required array of successive Vector3. This is the axis curve the shape is extruded along.
• The parameter rotation (float, default 0 radians) is the angle value to rotate the shape each step (each path point), from the former step (so rotation added each step) along the curve.
• The parameter scale (float, default 1) is the value to scale the shape.
• The parameter closeShape (boolean, default false) closes the shape when true, since v5.0.0.
• The parameter closePath (boolean, default false) closes the path when true and no caps, since v5.0.0.
• The parameter cap sets the way the extruded shape is capped. Possible values : BABYLON.Mesh.NO_CAP (default), BABYLON.Mesh.CAP_START, BABYLON.Mesh.CAP_END, BABYLON.Mesh.CAP_ALL
• The optional parameter instance is an instance of an existing ExtrudedShape object to be updated with the passed shape, path, scale or rotation parameters : https://doc.babylonjs.com/features/featuresDeepDive/mesh/dynamicMeshMorph#extruded-shape
• Remember you can only change the shape or path point positions, not their number when updating an extruded shape.
• You can also set the mesh side orientation with the values : BABYLON.Mesh.FRONTSIDE (default), BABYLON.Mesh.BACKSIDE or BABYLON.Mesh.DOUBLESIDE
• If you create a double-sided mesh, you can choose what parts of the texture image to crop and stick respectively on the front and the back sides with the parameters frontUVs and backUVs (Vector4). Detail here : https://doc.babylonjs.com/features/featuresDeepDive/mesh/creation/set#side-orientation
• The optional parameter invertUV (boolean, default false) swaps in the geometry the U and V coordinates to apply a texture.
• The mesh can be set to updatable with the boolean parameter updatable (default false) if its internal geometry is supposed to change once created.
• The optional parameter firstNormal (Vector3) defines the direction of the first normal of the supplied path. Consider using this for any path that is straight, and particular for paths in the xy plane.
• The optional adjustFrame (boolean, default false) will cause the internally generated Path3D tangents, normals, and binormals to be adjusted so that a) they are always well-defined, and b) they do not reverse from one path point to the next. This prevents the extruded shape from being flipped and/or rotated with resulting mesh self-intersections. This is primarily useful for straight paths that can reverse direction.