static bool TestAttributes() { var mesh = new BMesh(); mesh.AddVertexAttribute(new AttributeDefinition("test", AttributeBaseType.Float, 3)); mesh.AddEdgeAttribute("edgetest", AttributeBaseType.Float, 2); mesh.AddFaceAttribute("facetest", AttributeBaseType.Int, 1); Vertex v0 = mesh.AddVertex(new Vector3(-1, 0, -1)); Vertex v1 = mesh.AddVertex(new Vector3(-1, 0, 1)); Vertex v2 = mesh.AddVertex(new Vector3(1, 0, 1)); Vertex v3 = mesh.AddVertex(new Vector3(1, 0, -1)); Face f0 = mesh.AddFace(v0, v1, v2); Face f1 = mesh.AddFace(v2, v1, v3); var otherAttr = new AttributeDefinition("other", AttributeBaseType.Int, 1); var def = otherAttr.defaultValue as IntAttributeValue; def.data[0] = 42; mesh.AddVertexAttribute(otherAttr); foreach (var v in mesh.vertices) { Debug.Assert(v.attributes.ContainsKey("test"), "vertex has test attribute"); var test = v.attributes["test"] as FloatAttributeValue; Debug.Assert(test != null, "vertex test attribute has float value"); var testAsInt = v.attributes["test"] as IntAttributeValue; Debug.Assert(testAsInt == null, "vertex test attribute has no int value"); Debug.Assert(test.data.Length == 3, "vertex test attribute has 3 dimensions"); Debug.Assert(test.data[0] == 0 && test.data[1] == 0 && test.data[2] == 0, "vertex test attribute has value (0, 0, 0)"); Debug.Assert(v.attributes.ContainsKey("other"), "vertex has other attribute"); var other = v.attributes["other"] as IntAttributeValue; Debug.Assert(other.data.Length == 1, "vertex other attribute has 1 dimension"); Debug.Assert(other.data[0] == 42, "vertex other attribute has value 42"); } foreach (var e in mesh.edges) { Debug.Assert(e.attributes.ContainsKey("edgetest"), "edge has test attribute"); var edgetest = e.attributes["edgetest"] as FloatAttributeValue; Debug.Assert(edgetest != null, "edge test attribute has float value"); var edgetestAsInt = e.attributes["edgetest"] as IntAttributeValue; Debug.Assert(edgetestAsInt == null, "edge test attribute has no int value"); Debug.Assert(edgetest.data.Length == 2, "edge test attribute has 2 dimensions"); Debug.Assert(edgetest.data[0] == 0 && edgetest.data[1] == 0, "edge test attribute has value (0, 0)"); } foreach (var f in mesh.faces) { Debug.Assert(f.attributes.ContainsKey("facetest"), "face has test attribute"); var facetest = f.attributes["facetest"] as IntAttributeValue; Debug.Assert(facetest != null, "face test attribute has int value"); var facetestAsFloat = f.attributes["facetest"] as FloatAttributeValue; Debug.Assert(facetestAsFloat == null, "face test attribute has no float value"); Debug.Assert(facetest.data.Length == 1, "face test attribute has 1 dimensions"); Debug.Assert(facetest.data[0] == 0, "face test attribute has value (0)"); } { var other1 = v1.attributes["other"] as IntAttributeValue; var other2 = v2.attributes["other"] as IntAttributeValue; other1.data[0] = 43; Debug.Assert(other2.data[0] == 42, "default vertex attribute values are independent"); } { var v4 = new Vertex(new Vector3(0, 0, 0)) { attributes = new Dictionary <string, AttributeValue> { ["other"] = new FloatAttributeValue { data = new float[] { 1, 2, 3 } } } }; Debug.Log("Test expects warning:"); Debug.Assert(mesh.AddVertex(v4) == v4, "add point is conservative"); Debug.Assert(v4.attributes.ContainsKey("test"), "new vertex has test attribute"); var test = v4.attributes["test"] as FloatAttributeValue; Debug.Assert(test.data[0] == 0 && test.data[1] == 0 && test.data[2] == 0, "new vertex test attribute has value (0, 0, 0)"); var other = v4.attributes["other"] as IntAttributeValue; Debug.Assert(other != null, "new vertex other attribute is an int"); Debug.Assert(other.data[0] == 42, "new vertex other attribute ignored non int provided value"); } Debug.Log("TestBMesh TestAttributes passed."); return(true); }