public VerletMesh(Mesh m)
{
Faces = m.Faces;
VertexList = m.VertexList;
Normals = m.Normals;
init ();
}
void DrawMesh(Mesh m)
{
// var c = 0;
foreach (var f in m.Faces) {
if(useLines)
GL.Begin (BeginMode.Triangles);
else
GL.Begin (BeginMode.Points);
// Console.Write (string.Format ("Face {0} [ ", c++));
for (var i =0; i<Face.N; i++) {
var v = m.VertexList [f.posIndex [i]];
GL.Vertex3 (v.X, v.Y, v.Z);
// Console.Write (string.Format (" ({0},{1},{2}) ",v.X,v.Y,v.Z));
}
// Console.WriteLine(" ] ");
GL.End ();
}
}
public static Mesh CreatePlane(float width, float height, int rows,int columns)
{
if (rows == columns && rows == 0)
return null;
var plane = new Mesh ();
var dw = width / rows;
var dh = height / columns;
for (var r = 0; r<rows+1; r++)
for (var c = 0; c<columns+1; c++)
plane.VertexList.Add (new Vec3 (c*dw, r*dh , 0.0f));
for (var r = 0; r<rows; r++)
for (var c = 0; c<columns; c++) {
var v0 = r * (columns + 1) + c;
var v1 = v0 + columns + 1;
var v2 = v1 + 1;
var v3 = v0 + 1;
plane.VertexList.Add (
plane.VertexList [v0] * 0.25f + plane.VertexList [v1] * 0.25f +
plane.VertexList [v2] * 0.25f + plane.VertexList [v3] * 0.25f
);
var vc = plane.VertexList.Count - 1;
plane.Faces.Add (new Face (v0, v1, vc));
plane.Faces.Add (new Face (v1, v2, vc));
plane.Faces.Add (new Face (v2, v3, vc));
plane.Faces.Add (new Face (v3, v0, vc));
}
return plane;
}
public static Mesh CreateSphere(float radius, float rings, float segments)
{
double s, t;
var list = new List<Vec3> ();
for(var i = 0; i < rings; i++){
for(var j = 0; j < segments; j++){
s = (float)i * 2 * Math.PI / rings;
t = (float)j * 2 * Math.PI / segments;
list.Add(new Vec3(
(float)(radius * Math.Sin(s) * Math.Cos(t)),
(float)(radius * Math.Sin(s) * Math.Sin(t)),
(float)(radius * Math.Cos(s))
));
s = (double)(i + 1) * 2 * Math.PI / rings;
list.Add( new Vec3(
(float)(radius * Math.Sin(s) * Math.Cos(t)),
(float)(radius * Math.Sin(s) * Math.Sin(t)),
(float)(radius * Math.Cos(s))
));
}
}
var mesh = new Mesh ();
mesh.VertexList = list;
for(var i = 0; i<list.Count-2; i++)
{
mesh.Faces.Add (new Face (i, i + 1, i + 2));
}
return mesh;
}
