public static IDX11Geometry CreateIndexedGeometry(DX11RenderContext context, List <Vector3> points, List <Vector3> normals, List <Vector2> tex, int[] indices)
{
var count = points.Count;
Pos3Norm3Tex2Vertex[] vertices = new Pos3Norm3Tex2Vertex[count];
for (int i = 0; i < count; i++)
{
vertices[i] = new Pos3Norm3Tex2Vertex()
{
Position = points[i],
Normals = normals[i % normals.Count],
TexCoords = tex[i % tex.Count]
};
}
DataStream ds = new DataStream(vertices.Length * Pos3Norm3Tex2Vertex.VertexSize, true, true);
ds.Position = 0;
ds.WriteRange(vertices);
ds.Position = 0;
var vbuffer = new SlimDX.Direct3D11.Buffer(context.Device, ds, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = (int)ds.Length,
Usage = ResourceUsage.Default
});
ds.Dispose();
var indexstream = new DataStream(indices.Length * 4, true, true);
indexstream.WriteRange(indices);
indexstream.Position = 0;
DX11IndexedGeometry geom = new DX11IndexedGeometry(context);
geom.VertexBuffer = vbuffer;
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.InputLayout = Pos3Norm3Tex2Vertex.Layout;
geom.Topology = PrimitiveTopology.TriangleList;
geom.VerticesCount = count;
geom.VertexSize = Pos3Norm3Tex2Vertex.VertexSize;
geom.HasBoundingBox = false;
return(geom);
}
public void Update(IPluginIO pin, DX11RenderContext context)
{
for (int i = 0; i < this.FOutput.SliceCount; i++)
{
bool update = this.FInvalidate;
DX11IndexedGeometry geom;
if (!this.FOutput[i].Contains(context))
{
geom = new DX11IndexedGeometry(context);
geom.InputLayout = Pos3Norm3Tex2Vertex.Layout;
geom.VertexSize = Pos3Norm3Tex2Vertex.VertexSize;
geom.HasBoundingBox = false;
geom.Topology = PrimitiveTopology.TriangleList;
var indexstream = new DataStream(KinectRuntime.FACE_INDICES.Length * 4, true, true);
indexstream.WriteRange(KinectRuntime.FACE_INDICES);
indexstream.Position = 0;
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.VerticesCount = this.FInFrame[i].GetProjected3DShape().Count;
var vbuffer = new SlimDX.Direct3D11.Buffer(context.Device, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = geom.VerticesCount * geom.VertexSize,
Usage = ResourceUsage.Dynamic
});
geom.VertexBuffer = vbuffer;
this.FOutput[i][context] = geom;
update = true;
}
else
{
geom = this.FOutput[i][context];
}
if (update)
{
DataStream ds = geom.LockVertexBuffer();
ds.Position = 0;
EnumIndexableCollection <FeaturePoint, PointF> pp = this.FInFrame[i].GetProjected3DShape();
EnumIndexableCollection <FeaturePoint, Vector3DF> p = this.FInFrame[i].Get3DShape();
Vector3[] norms = new Vector3[p.Count];
int[] inds = KinectRuntime.FACE_INDICES;
int tricount = inds.Length / 3;
//Compute smoothed normals
for (int j = 0; j < tricount; j++)
{
int i1 = inds[j * 3];
int i2 = inds[j * 3 + 1];
int i3 = inds[j * 3 + 2];
Vector3 v1 = p[i1].SlimVector();
Vector3 v2 = p[i2].SlimVector();
Vector3 v3 = p[i3].SlimVector();
Vector3 faceEdgeA = v2 - v1;
Vector3 faceEdgeB = v1 - v3;
Vector3 norm = Vector3.Cross(faceEdgeB, faceEdgeA);
norms[i1] += norm; norms[i2] += norm; norms[i3] += norm;
}
for (int j = 0; j < geom.VerticesCount; j++)
{
Pos3Norm3Tex2Vertex vertex = new Pos3Norm3Tex2Vertex();
Vector3DF v = p[j];
vertex.Position = new Vector3(v.X, v.Y, v.Z);
vertex.Normals = Vector3.Normalize(norms[j]);
vertex.TexCoords = new Vector2(0, 0);
ds.Write <Pos3Norm3Tex2Vertex>(vertex);
}
geom.UnlockVertexBuffer();
}
}
}
public static IDX11Geometry Polygon2D(DX11RenderContext context, List <Vector2> points)
{
var count = points.Count;
float cx = 0;
float cy = 0;
float x, y;
float minx = float.MaxValue, miny = float.MaxValue;
float maxx = float.MinValue, maxy = float.MinValue;
Pos3Norm3Tex2Vertex[] vertices = new Pos3Norm3Tex2Vertex[count + 1];
for (int j = 0; j < count; j++)
{
var point = points[j];
x = point.X;
y = point.Y;
vertices[j + 1].Position = new Vector3(x, y, 0);
vertices[j + 1].Normals = new Vector3(0, 0, -1);
vertices[j + 1].TexCoords = new Vector2(0.0f, 0.0f);
cx += x;
cy += y;
if (x < minx)
{
minx = x;
}
if (x > maxx)
{
maxx = x;
}
if (y < miny)
{
miny = y;
}
if (y > maxy)
{
maxy = y;
}
}
vertices[0].Position = new Vector3(cx / count, cy / count, 0);
vertices[0].Normals = new Vector3(0, 0, -1);
float w = maxx - minx;
float h = maxy - miny;
for (int j = 0; j <= count; j++)
{
vertices[j].TexCoords = new Vector2((vertices[j].Position.X - minx) / w,
(vertices[j].Position.Y - miny) / h);
}
List <int> inds = new List <int>();
var indices = new int[count * 3];
var outerJ = 0;
for (int j = 0; j < count - 1; j++)
{
outerJ = j * 3;
indices[outerJ] = 0;
indices[outerJ + 1] = j + 1;
indices[outerJ + 2] = j + 2;
}
outerJ = count - 1;
indices[outerJ] = 0;
indices[outerJ + 1] = count - 1;
indices[outerJ + 2] = 1;
DataStream ds = new DataStream(vertices.Length * Pos3Norm3Tex2Vertex.VertexSize, true, true);
ds.Position = 0;
ds.WriteRange(vertices);
ds.Position = 0;
var vbuffer = new SlimDX.Direct3D11.Buffer(context.Device, ds, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = (int)ds.Length,
Usage = ResourceUsage.Default
});
ds.Dispose();
var indexstream = new DataStream(indices.Length * 4, true, true);
indexstream.WriteRange(indices);
indexstream.Position = 0;
DX11IndexedGeometry geom = new DX11IndexedGeometry(context);
geom.VertexBuffer = vbuffer;
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.InputLayout = Pos3Norm3Tex2Vertex.Layout;
geom.Topology = PrimitiveTopology.TriangleList;
geom.VerticesCount = count;
geom.VertexSize = Pos3Norm3Tex2Vertex.VertexSize;
geom.HasBoundingBox = false;
return(geom);
}
