CSGPolygon3D

Inherits: CSGPrimitive3D < CSGShape3D < GeometryInstance3D < VisualInstance3D < Node3D < Node < Object

Extrudes a 2D polygon shape to create a 3D mesh.

Description

An array of 2D points is extruded to quickly and easily create a variety of 3D meshes. See also CSGMesh3D for using 3D meshes as CSG nodes.

Note: CSG nodes are intended to be used for level prototyping. Creating CSG nodes has a significant CPU cost compared to creating a MeshInstance3D with a PrimitiveMesh. Moving a CSG node within another CSG node also has a significant CPU cost, so it should be avoided during gameplay.

Tutorials

Properties

float

depth

1.0

Material

material

Mode

mode

0

bool

path_continuous_u

float

path_interval

PathIntervalType

path_interval_type

bool

path_joined

bool

path_local

NodePath

path_node

PathRotation

path_rotation

float

path_simplify_angle

float

path_u_distance

PackedVector2Array

polygon

PackedVector2Array(0, 0, 0, 1, 1, 1, 1, 0)

bool

smooth_faces

false

float

spin_degrees

int

spin_sides

Enumerations

enum Mode:

Mode MODE_DEPTH = 0

The polygon shape is extruded along the negative Z axis.

Mode MODE_SPIN = 1

The polygon shape is extruded by rotating it around the Y axis.

Mode MODE_PATH = 2

The polygon shape is extruded along the Path3D specified in path_node.

enum PathRotation:

PathRotation PATH_ROTATION_POLYGON = 0

The polygon shape is not rotated.

Note: Requires the path Z coordinates to continually decrease to ensure viable shapes.

PathRotation PATH_ROTATION_PATH = 1

The polygon shape is rotated along the path, but it is not rotated around the path axis.

Note: Requires the path Z coordinates to continually decrease to ensure viable shapes.

PathRotation PATH_ROTATION_PATH_FOLLOW = 2

The polygon shape follows the path and its rotations around the path axis.

enum PathIntervalType:

PathIntervalType PATH_INTERVAL_DISTANCE = 0

When mode is set to MODE_PATH, path_interval will determine the distance, in meters, each interval of the path will extrude.

PathIntervalType PATH_INTERVAL_SUBDIVIDE = 1

When mode is set to MODE_PATH, path_interval will subdivide the polygons along the path.

Property Descriptions

float depth = 1.0

  • void set_depth ( float value )

  • float get_depth ( )

When mode is MODE_DEPTH, the depth of the extrusion.

Material material

Material to use for the resulting mesh. The UV maps the top half of the material to the extruded shape (U along the length of the extrusions and V around the outline of the polygon), the bottom-left quarter to the front end face, and the bottom-right quarter to the back end face.

Mode mode = 0

  • void set_mode ( Mode value )

  • Mode get_mode ( )

The mode used to extrude the polygon.

bool path_continuous_u

  • void set_path_continuous_u ( bool value )

  • bool is_path_continuous_u ( )

When mode is MODE_PATH, by default, the top half of the material is stretched along the entire length of the extruded shape. If false the top half of the material is repeated every step of the extrusion.

float path_interval

  • void set_path_interval ( float value )

  • float get_path_interval ( )

When mode is MODE_PATH, the path interval or ratio of path points to extrusions.

PathIntervalType path_interval_type

When mode is MODE_PATH, this will determine if the interval should be by distance (PATH_INTERVAL_DISTANCE) or subdivision fractions (PATH_INTERVAL_SUBDIVIDE).

bool path_joined

  • void set_path_joined ( bool value )

  • bool is_path_joined ( )

When mode is MODE_PATH, if true the ends of the path are joined, by adding an extrusion between the last and first points of the path.

bool path_local

  • void set_path_local ( bool value )

  • bool is_path_local ( )

When mode is MODE_PATH, if true the Transform3D of the CSGPolygon3D is used as the starting point for the extrusions, not the Transform3D of the path_node.

NodePath path_node

When mode is MODE_PATH, the location of the Path3D object used to extrude the polygon.

PathRotation path_rotation

When mode is MODE_PATH, the PathRotation method used to rotate the polygon as it is extruded.

float path_simplify_angle

  • void set_path_simplify_angle ( float value )

  • float get_path_simplify_angle ( )

When mode is MODE_PATH, extrusions that are less than this angle, will be merged together to reduce polygon count.

float path_u_distance

  • void set_path_u_distance ( float value )

  • float get_path_u_distance ( )

When mode is MODE_PATH, this is the distance along the path, in meters, the texture coordinates will tile. When set to 0, texture coordinates will match geometry exactly with no tiling.

PackedVector2Array polygon = PackedVector2Array(0, 0, 0, 1, 1, 1, 1, 0)

The point array that defines the 2D polygon that is extruded. This can be a convex or concave polygon with 3 or more points. The polygon must not have any intersecting edges. Otherwise, triangulation will fail and no mesh will be generated.

Note: If only 1 or 2 points are defined in polygon, no mesh will be generated.

bool smooth_faces = false

  • void set_smooth_faces ( bool value )

  • bool get_smooth_faces ( )

If true, applies smooth shading to the extrusions.

float spin_degrees

  • void set_spin_degrees ( float value )

  • float get_spin_degrees ( )

When mode is MODE_SPIN, the total number of degrees the polygon is rotated when extruding.

int spin_sides

  • void set_spin_sides ( int value )

  • int get_spin_sides ( )

When mode is MODE_SPIN, the number of extrusions made.