/// <summary>
///
/// </summary>
/// <param name="args"></param>
public static void Run()
{
var mesh = HeMesh3d.Factory.CreateFromOBJ(Paths.Resources + _fileIn);
double scale = 0.5;
double offset = scale * Math.PI * 0.25;
// apply texture coordinates from an implicit function
foreach (var v in mesh.Vertices)
{
var p = v.Position * scale;
v.Texture = new Vec2d(
ImplicitSurfaces.Gyroid(p.X, p.Y, p.Z),
ImplicitSurfaces.Gyroid(p.X + offset, p.Y + offset, p.Z + offset)
);
}
// compute vertex normals & write to file
mesh.GetVertexNormals(v => v.Position, (v, n) => v.Normal = n);
mesh.WriteToOBJ(Paths.Resources + _fileOut);
Console.WriteLine("File written successfully. Press return to exit.");
Console.ReadLine();
}
/// <summary>
///
/// </summary>
public override float Evaluate(Vector3 point)
{
// impl ref
// http://iquilezles.org/www/articles/distfunctions/distfunctions.htm
point = _toLocal.MultiplyPoint3x4(point);
switch (_type)
{
case ImplicitSurfaceType.Diamond:
return((float)ImplicitSurfaces.Diamond(point));
case ImplicitSurfaceType.Gyroid:
return((float)ImplicitSurfaces.Gyroid(point));
case ImplicitSurfaceType.HybridPW:
return((float)ImplicitSurfaces.HybridPW(point));
case ImplicitSurfaceType.IWP:
return((float)ImplicitSurfaces.IWP(point));
case ImplicitSurfaceType.Neovius:
return((float)ImplicitSurfaces.Neovius(point));
}
throw new System.NotImplementedException();
}
/// <summary>
///
/// </summary>
/// <param name="args"></param>
public static void Start()
{
var mesh = HeMesh3d.Factory.CreateFromOBJ(Paths.Resources + _fileIn);
var verts = mesh.Vertices;
var texCoords = new Vector2d[verts.Count];
double scale = 0.5;
double offset = scale * Math.PI * 0.25;
// create texture coordinates from implicit function
for (int i = 0; i < verts.Count; i++)
{
var p = verts[i].Position * scale;
var u = ImplicitSurfaces.Gyroid(p.X, p.Y, p.Z);
var v = ImplicitSurfaces.Gyroid(p.X + offset, p.Y + offset, p.Z + offset);
texCoords[i] = new Vector2d(u, v);
}
// compute vertex normals & write to file
mesh.Vertices.Action(v => v.Normal = v.GetNormal(), true);
Interop.Meshes.WriteToObj(mesh, Paths.Resources + _fileOut, v => texCoords[v]);
Console.WriteLine("File written successfully. Press return to exit.");
Console.ReadLine();
}
/// <summary>
///
/// </summary>
public bool Filter(Vector3 vector)
{
const float f = 2.0f * Mathf.PI;
vector.x *= f / CountX;
vector.y *= f / CountY;
vector.z *= f / CountZ;
//return ImplicitSurfaces.Gyroid(vector) > 0.5;
return(ImplicitSurfaces.Diamond(vector) > 0.3);
}