/*[Input("Size",DefaultValues= new double[] { 1,1,1})]
IDiffSpread<Vector3> FSize;*/
protected override DX11IndexedGeometry GetGeom(DX11RenderContext context, int slice)
{
Isocahedron iso = new Isocahedron();
iso.Size = new Vector3(1, 1, 1);
return context.Primitives.Isocahedron(iso);
}
public DX11IndexedGeometry Isocahedron(Isocahedron settings)
{
IsocahedronBuilder builder = new IsocahedronBuilder();
ListGeometryAppender appender = new ListGeometryAppender();
PrimitiveInfo info = builder.GetPrimitiveInfo(settings);
builder.Construct(settings, appender.AppendVertex, appender.AppendIndex);
return(FromAppender(settings, appender, info));
}
public DX11IndexedGeometry Isocahedron(Isocahedron settings)
{
DX11IndexedGeometry geom = new DX11IndexedGeometry(context);
geom.PrimitiveType = settings.PrimitiveType;
geom.Tag = settings;
geom.VerticesCount = 12;
geom.InputLayout = Pos3Norm3Tex2Vertex.Layout;
geom.VertexSize = Pos3Norm3Tex2Vertex.VertexSize;
geom.Topology = PrimitiveTopology.TriangleList;
// This is the golden ratio
float t = (1.0f + (float)Math.Sqrt(5.0f)) / 2.0f;
DataStream ds = new DataStream(12 * Pos3Norm3Tex2Vertex.VertexSize, false, true);
Pos3Norm3Tex2Vertex v = new Pos3Norm3Tex2Vertex();
v.Position = Vector3.Normalize(new Vector3(-1, t, 0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(1, t, 0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(-1, -t, 0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(1, -t, 0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, -1, t)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, 1, t)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, -1, -t)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, 1, -t)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(t, 0, -1)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(t, 0, 1)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(-t, 0, -1)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(-t, 0, 1)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0);
v.Position *= settings.Radius;
ds.Write <Pos3Norm3Tex2Vertex>(v);
geom.VertexBuffer = BufferHelper.CreateVertexBuffer(context, ds, true);
var indexstream = new DataStream(60 * 4, true, true);
int[] inds = new int[] {
0, 11, 5,
0, 5, 1,
0, 1, 7,
0, 7, 10,
0, 10, 11,
1, 5, 9,
5, 11, 4,
11, 10, 2,
10, 7, 6,
7, 1, 8,
3, 9, 4,
3, 4, 2,
3, 2, 6,
3, 6, 8,
3, 8, 9,
4, 9, 5,
2, 4, 11,
6, 2, 10,
8, 6, 7,
9, 8, 1
};
indexstream.WriteRange(inds);
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.HasBoundingBox = true;
geom.BoundingBox = new BoundingBox(new Vector3(-1, -1, -1), new Vector3(1, 1, 1));
return(geom);
}
public DX11IndexedGeometry Isocahedron(Isocahedron settings)
{
DX11IndexedGeometry geom = new DX11IndexedGeometry(context);
geom.PrimitiveType = settings.PrimitiveType;
geom.Tag = settings;
geom.VerticesCount = 12;
geom.InputLayout = Pos3Norm3Tex2Vertex.Layout;
geom.VertexSize = Pos3Norm3Tex2Vertex.VertexSize;
geom.Topology = PrimitiveTopology.TriangleList;
// This is the golden ratio
float t = (1.0f + (float)Math.Sqrt(5.0f)) / 2.0f;
DataStream ds = new DataStream(12 * Pos3Norm3Tex2Vertex.VertexSize, false, true);
Pos3Norm3Tex2Vertex v = new Pos3Norm3Tex2Vertex();
v.Position = Vector3.Normalize(new Vector3(-1, t, 0))*0.5f; v.Normals = v.Position*2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(1, t, 0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(-1, -t, 0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(1, -t, 0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, -1, t)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, 1, t)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, -1, -t)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, 1, -t)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(t, 0, -1)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(t, 0, 1)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(-t, 0, -1)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(-t, 0, 1)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
geom.VertexBuffer = BufferHelper.CreateVertexBuffer(context, ds, true);
var indexstream = new DataStream(60 * 4, true, true);
int[] inds = new int[] {
0,11,5,
0,5,1,
0,1,7,
0,7,10,
0,10,11,
1,5,9,
5,11,4,
11,10,2,
10,7,6,
7,1,8,
3,9,4,
3,4,2,
3,2,6,
3,6,8,
3,8,9,
4,9,5,
2,4,11,
6,2,10,
8,6,7,
9,8,1 };
indexstream.WriteRange(inds);
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.HasBoundingBox = true;
geom.BoundingBox = new BoundingBox(new Vector3(-1, -1, -1), new Vector3(1, 1, 1));
return geom;
}
