Triangular face used in Geometry. These are created automatically for all standard geometry types, however if you are building a custom geometry you will have to create them manually.
var material = new v3d.MeshStandardMaterial({ color : 0x00cc00 });
//create a triangular geometry
var geometry = new v3d.Geometry();
geometry.vertices.push(new v3d.Vector3(-50, -50, 0));
geometry.vertices.push(new v3d.Vector3( 50, -50, 0));
geometry.vertices.push(new v3d.Vector3( 50, 50, 0));
//create a new face using vertices 0, 1, 2
var normal = new v3d.Vector3(0, 1, 0); //optional
var color = new v3d.Color(0xffaa00); //optional
var materialIndex = 0; //optional
var face = new v3d.Face3(0, 1, 2, normal, color, materialIndex);
//add the face to the geometry's faces array
geometry.faces.push(face);
//the face normals and vertex normals can be calculated automatically if not supplied above
geometry.computeFaceNormals();
geometry.computeVertexNormals();
scene.add(new v3d.Mesh(geometry, material));
a — Vertex A index.
b — Vertex B index.
c — Vertex C index.
normal — (optional) Face normal (Vector3) or array of vertex normals.
If a single vector is passed in, this sets .normal, otherwise if an array of three
vectors is passed in this sets .vertexNormals
color — (optional) Face color or array of vertex colors.
If a single vector is passed in, this sets .color, otherwise if an array of three
vectors is passed in this sets .vertexColors
materialIndex — (optional) which index of an array of materials to associate
with the face.
Vertex A index.
Vertex B index.
Vertex C index.
Face normal - vector showing the direction of the Face3. If calculated automatically (using Geometry.computeFaceNormals), this is the normalized cross product of two edges of the triangle. Default is (0, 0, 0).
Face color - for this to be used a material's vertexColors property must be set to v3d.FaceColors.
Array of 3 vertex normals.
Array of 3 vertex colors - for these to be used a material's vertexColors property must be set to v3d.VertexColors.
Material index (points to an index in the associated array of materials). Default is 0.
Creates a new clone of the Face3 object.
Copy the parameters of another Face3 into this.
For more info on how to obtain the source code of this module see this page.