public Geometry Sqrt3(Geometry geometry)
{
geometry.BuildEdges();
geometry = new Sqrt3GeometryOperation(geometry).Destination;
geometry = new Sqrt3GeometryOperation(geometry).Destination;
geometry = new Sqrt3GeometryOperation(geometry).Destination;
geometry = new Sqrt3GeometryOperation(geometry).Destination;
geometry = new Sqrt3GeometryOperation(geometry).Destination;
return(geometry);
}
public void Sqrt3(Model model)
{
if (model == null)
{
return;
}
GeometryMesh mesh = model.Batch.MeshSource as GeometryMesh;
if (mesh == null)
{
return;
}
Geometry newGeometry = new Sqrt3GeometryOperation(mesh.Geometry).Destination;
newGeometry.ComputePolygonCentroids();
newGeometry.ComputePolygonNormals();
//newGeometry.ComputeCornerNormals(2.0f * (float)Math.PI);
newGeometry.SmoothNormalize("corner_normals", "polygon_normals", (2.0f * (float)Math.PI));
newGeometry.BuildEdges();
MeshModified op = new MeshModified(
model,
new MeshModified.State(
model.Name,
model.Batch
),
new MeshModified.State(
"Sqrt3(" + model.Name + ")",
new Batch(
new GeometryMesh(
newGeometry,
NormalStyle.PointNormals
),
model.Batch.Material
)
)
);
operationStack.Do(op);
}
private List <Vector3> PointsOnSphereSubdividedIcosahedron(int subdivisions)
{
var points = new List <Vector3>();
Geometry g = new RenderStack.Geometry.Shapes.Icosahedron(1.0);
g.BuildEdges();
for (int i = 0; i < subdivisions; ++i)
{
g = new Sqrt3GeometryOperation(g).Destination;
}
var pointLocations = g.PointAttributes.FindOrCreate <Vector3>("point_locations");
foreach (var point in g.Points)
{
Vector3 pos = pointLocations[point];
if (pos.Y <= 0.0f)
{
continue;
}
points.Add(pos);
}
return(points);
}
