Polygon
WLJS
Wolfram Kernel
Execution environment
a 3D version of Polygon used in Graphics3D
Polygon[vertices_List | {vertices__List} | faces_List]
represents a single or a list of polygons
Types
Triangle
The most efficient one. It consists of 3 vertices
pol = Polygon[{{1, 0, 0}, {1, 1, 1}, {0, 0, 1}}];
pol // Graphics3D
Quad
4 vertices. It will be converted to the set of triangles on output
Pentagon
5 vertices. It will be converted to the set of triangles on output
Parameters
RGBColor
Opacity
Indexed geometry
The most efficient way of using Polygon for constructing complex objects is to wrap it into GraphicsComplex. It provides the list of faces and colors of each vertex as separate lists, while Polygon contains only the indexes, which forms each polygon
v = PolyhedronData["Dodecahedron", "Vertices"] // N;
i = PolyhedronData["Dodecahedron", "FaceIndices"];
GraphicsComplex[v, Polygon[i]] // Graphics3D
Non-indexed geometry
One can provide only the ranges for the triangles to be rendered
GraphicsComplex[v, Polygon[1, Length[v]]] // Graphics3D
warning
it assumes you are using triangles
Dynamic updates
It is possible only using GraphicsComplex and keeping faces unchanged.