public RocketModel(IVertexCoder <Vertex> coder)
{
SimpleMesh mesh = new SimpleMesh();
mesh.AddRange(Compose(new Triangle(
new Vector3(0, 0, 1),
new Vector3(1f / 3, -1f / 3, 1f / 3),
new Vector3(1f / 3, 1f / 3, 1f / 3)
)));
mesh.AddRange(Compose(Mesh.Quad(
new Vector3(1f / 3, -1f / 3, 1f / 3),
new Vector3(1f / 3, -1f / 3, -1),
new Vector3(1f / 3, 1f / 3, -1),
new Vector3(1f / 3, 1f / 3, 1f / 3)
)));
mesh.AddRange(Compose(new Triangle(
new Vector3(1f / 3, 0, -1f / 3),
new Vector3(1f / 3, 0, -1f),
new Vector3(2f / 3, 0, -1f)
)));
mesh.AddRange(Mesh.Quad(
new Vector3(1f / 3, -1f / 3, -1f),
new Vector3(-1f / 3, -1f / 3, -1f),
new Vector3(-1f / 3, 1f / 3, -1f),
new Vector3(1f / 3, 1f / 3, -1f)
));
_bfr = mesh.ToBuffer(coder);
}
public SphereModel(IVertexCoder <Vertex> coder, int bups)
{
List <Triangle> triangles = new List <Triangle> {
new Triangle(new Vector3(1, 0, 0), new Vector3(0, 1, 0), new Vector3(0, 0, 1))
};
for (int i = 0; i < bups; i++)
{
for (int j = triangles.Count - 1; j >= 0; j--)
{
triangles.AddRange(triangles[j].BreakUp());
triangles.RemoveAt(j);
}
}
int octant = triangles.Count;
for (int i = 1; i <= 3; i++)
{
float sin = (float)Math.Sin(i * (float)Math.PI / 2);
float cos = (float)Math.Cos(i * (float)Math.PI / 2);
for (int j = octant - 1; j >= 0; j--)
{
Triangle self = triangles[j];
Triangle rot = self.RotateZ(sin, cos);
triangles.Add(rot);
if (i == 1)
{
triangles.Add(self.FlipZ());
}
triangles.Add(rot.FlipZ());
}
}
SimpleMesh mesh = new SimpleMesh();
mesh.AddRange(triangles.Select(i => new Engine.Geometry.Triangle(i.A, i.B, i.C)));
_indices = mesh.ToBuffer(coder);
}