manual/modeling/geometry_nodes/curve/operations/fill_curve.rst

@@ -6,7 +6,7 @@ Fill Curve Node
 ***************
 
 .. figure:: /images/node-types_GeometryNodeFillCurve.webp
-   :align: center
+   :align: right
    :alt: Fill Curve node.
 
 The *Fill Curve* node generates a mesh using the constrained Delaunay triangulation algorithm
@@ -19,6 +19,10 @@ Inputs
 Curve
    Standard geometry input with a curve component.
 
+Group ID
+   Value used to group curves together.
+   Curves with different Group ID are treated separately.
+
 
 Properties
 ==========
@@ -36,21 +40,56 @@ Outputs
 =======
 
 Mesh
-   The filled in curves.
+   The filled-in curves.
 
 
 Examples
 ========
 
-A single point spline can be used to customize the triangulation of the resulting mesh.
+Customized triangulation
+------------------------
 
-.. figure:: /images/modeling_geometry-nodes_curve_curve-to-points_example_1.png
+One or many "single point spline" can be used to customize the triangulation of the filled-in curves.
+
+.. figure:: /images/modeling_geometry-nodes_curve_curve-fill_example_0.png
    :align: center
 
-   Here a curve object with a single spline with a single point at the origin is joined with
+   This is the default behavior of the *Fill Curve* node applied to the star primitive.
-   the star primitive to customize triangulation.
+    
 
-.. figure:: /images/modeling_geometry-nodes_curve_curve-to-points_example_2.png
+.. figure:: /images/modeling_geometry-nodes_curve_curve-fill_example_1.png
    :align: center
 
-   This is the default triangulation without the single point.
+   Here, a single curve point is joined to the star primitive to customize the triangulation.
+
+.. figure:: /images/modeling_geometry-nodes_curve_curve-fill_example_2.png
+   :align: center
+
+   Here, 300 single curve point are joined to the star primitive to customize the triangulation.
+
+Group ID
+--------
+
+The following figures display diverse application of the Group ID.
+
+.. The following example were made with some nodes "hidden" to illustrate the amount of mesh islands
+.. and avoid Z fighting.
+.. Mesh Island Index -> Set Position (as z offset) 
+.. Mesh Island Index -> Map Range (Mesh island count as input max) -> Color Ramp (distributed from left)
+.. Colors Used : 5ABD9E, 85BD50, DDB72C, D26072
+
+.. figure:: /images/modeling_geometry-nodes_curve_curve-fill_group-id_0.png
+   :align: center
+   :alt: 
+
+   Here, the 4 curves share the same Group ID, resulting in 1 mesh island (default behavior).
+
+.. figure:: /images/modeling_geometry-nodes_curve_curve-fill_group-id_1.png
+   :align: center 
+
+   Here, the 4 curves have different Group ID, resulting in 4 mesh islands.
+
+.. figure:: /images/modeling_geometry-nodes_curve_curve-fill_group-id_2.png
+   :align: center 
+
+   Here, the 4 curves are seperated into two groups based on their positions, resulting in 2 mesh islands.