protected override DX11IndexedGeometry GetGeom(DX11RenderContext context, int slice)
{
Cylinder cylinder = new Cylinder()
{
Caps = this.FInCaps[slice],
Cycles = this.FInCycles[slice],
Length = this.FInLength[slice],
Radius1 = this.FInR1[slice],
Radius2 = this.FInR2[slice],
ResolutionX = this.FInResX[slice],
ResolutionY= this.FInResY[slice]
};
return context.Primitives.Cylinder(cylinder);
}
public DX11IndexedGeometry Cylinder(Cylinder settings)
{
float radius1 = settings.Radius1;
float radius2 = settings.Radius2;
float cycles = settings.Cycles;
float length = settings.Length;
int resX = settings.ResolutionX;
int resY = settings.ResolutionY;
bool caps = settings.Caps;
DX11IndexedGeometry geom = new DX11IndexedGeometry(context);
geom.Tag = settings;
geom.PrimitiveType = settings.PrimitiveType;
int vcount = resX * (resY + 1);
int icount = vcount * 6;
if (caps)
{
//Add vertices (+1 for center)
vcount += (resX + 1 * 2);
//Add Triangles (on each side
icount += (resX * 6);
}
float lenstart = -length * 0.5f; //Start at half bottom
float lenstep = (float)length / (float)resY;
float y = lenstart;
List<Pos4Norm3Tex2Vertex> verts = new List<Pos4Norm3Tex2Vertex>();
List<int> inds = new List<int>();
float phi = 0.0f;
float inc = Convert.ToSingle((Math.PI * 2.0 * cycles) / (double)resX);
float fres = Convert.ToSingle(resY);
#region Add Vertices tube
for (int i = 0; i < resY + 1; i++)
{
float ystep = (float)i / fres;
float radius = Map(ystep, 0, 1, radius1, radius2);
for (int j = 0; j < resX; j++)
{
float x = Convert.ToSingle(radius1 * Math.Cos(phi)) * radius;
float z = Convert.ToSingle(radius1 * Math.Sin(phi)) * radius;
Pos4Norm3Tex2Vertex v = new Pos4Norm3Tex2Vertex();
v.Position = new Vector4(x, y, z, 1.0f);
v.Normals = new Vector3(x, 0.0f, z);
v.Normals.Normalize();
verts.Add(v);
phi += inc;
}
y += lenstep;
phi = 0.0f;
}
#endregion
#region Add Indices Tube
int indstart;
for (int i = 0; i < resY; i++)
{
indstart = resX * i;
int j;
for (j = 0; j < resX - 1; j++)
{
inds.Add(indstart + j);
inds.Add(indstart + resX + j);
inds.Add(indstart + j + 1);
inds.Add(indstart + j + 1);
inds.Add(indstart + j + resX);
inds.Add(indstart + j + resX + 1);
}
inds.Add(indstart + j);
inds.Add(indstart + resX + j);
inds.Add(indstart);
inds.Add(indstart + j + resX);
inds.Add(indstart + resX);
inds.Add(indstart);
}
if (caps)
{
indstart = verts.Count;
y = -length * 0.5f;
Pos4Norm3Tex2Vertex v = new Pos4Norm3Tex2Vertex();
v.Position = new Vector4(0, y, 0, 1.0f);
v.Normals = new Vector3(0.0f, -1.0f, 0.0f);
v.Normals.Normalize();
verts.Add(v);
phi = 0.0f;
for (int j = 0; j < resX; j++)
{
float x = Convert.ToSingle(radius1 * Math.Cos(phi)) * radius1;
float z = Convert.ToSingle(radius1 * Math.Sin(phi)) * radius1;
v.Position = new Vector4(x, y, z, 1.0f);
verts.Add(v);
phi += inc;
}
for (int j = 1; j < resX + 1; j++)
{
inds.Add(indstart);
inds.Add(indstart + j);
if (j == resX)
{
inds.Add(indstart + 1);
}
else
{
inds.Add(indstart + j + 1);
}
}
indstart += (resX + 1);
y = length * 0.5f;
v = new Pos4Norm3Tex2Vertex();
v.Position = new Vector4(0, y, 0, 1.0f);
v.Normals = new Vector3(0.0f, 1.0f, 0.0f);
v.Normals.Normalize();
verts.Add(v);
phi = 0.0f;
for (int j = 0; j < resX; j++)
{
float x = Convert.ToSingle(radius1 * Math.Cos(phi)) * radius2;
float z = Convert.ToSingle(radius1 * Math.Sin(phi)) * radius2;
v.Position = new Vector4(x, y, z, 1.0f);
verts.Add(v);
phi += inc;
}
for (int j = 1; j < resX + 1; j++)
{
inds.Add(indstart + j);
inds.Add(indstart);
if (j == resX)
{
inds.Add(indstart + 1);
}
else
{
inds.Add(indstart + j + 1);
}
}
}
#endregion
DataStream ds = new DataStream(verts.Count * Pos4Norm3Tex2Vertex.VertexSize, true, true);
ds.Position = 0;
ds.WriteRange(verts.ToArray());
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(inds.Count * 4, true, true);
indexstream.WriteRange(inds.ToArray());
indexstream.Position = 0;
geom.VertexBuffer = vbuffer;
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.InputLayout = Pos4Norm3Tex2Vertex.Layout;
geom.Topology = PrimitiveTopology.TriangleList;
geom.VerticesCount = vcount;
geom.VertexSize = Pos4Norm3Tex2Vertex.VertexSize;
//Since cylinder can be a cone, max box is max of radius
float maxrad = radius1 > radius2 ? radius1 : radius2;
geom.HasBoundingBox = true;
geom.BoundingBox = new BoundingBox(new Vector3(-maxrad, -lenstart, -maxrad), new Vector3(maxrad, lenstart, maxrad));
return geom;
}
public DX11IndexedGeometry Cylinder(Cylinder settings)
{
float radius1 = settings.Radius1;
float radius2 = settings.Radius2;
float cycles = settings.Cycles;
float length = settings.Length;
int resX = settings.ResolutionX;
int resY = settings.ResolutionY;
bool caps = settings.Caps;
DX11IndexedGeometry geom = new DX11IndexedGeometry(context);
geom.Tag = settings;
geom.PrimitiveType = settings.PrimitiveType;
int vcount = resX * (resY + 1);
int icount = vcount * 6;
if (caps)
{
//Add vertices (+1 for center)
vcount += (resX + 1 * 2);
//Add Triangles (on each side
icount += (resX * 6);
}
float lenstart = settings.CenterY ? -length * 0.5f : 0.0f; //Start at half bottom if centered
float lenstep = (float)length / (float)resY;
float y = lenstart;
List <Pos4Norm3Tex2Vertex> verts = new List <Pos4Norm3Tex2Vertex>();
List <int> inds = new List <int>();
float phi = 0.0f;
float inc = Convert.ToSingle((Math.PI * 2.0 * cycles) / (double)resX);
float fres = Convert.ToSingle(resY);
float fy = resY;
float resMax = (float)resY;
#region Add Vertices tube
for (int i = 0; i < resY + 1; i++)
{
float ystep = (float)i / (fres + 1.0f);
float radius = Map((float)i, 0.0f, resMax, radius1, radius2);
for (int j = 0; j < resX; j++)
{
float x = Convert.ToSingle(Math.Cos(phi)) * radius;
float z = Convert.ToSingle(Math.Sin(phi)) * radius;
Pos4Norm3Tex2Vertex v = new Pos4Norm3Tex2Vertex();
v.Position = new Vector4(x, y, z, 1.0f);
v.Normals = new Vector3(x, 0.0f, z);
v.Normals.Normalize();
v.TexCoords = new Vector2((float)j / (float)resX, 1.0f - (float)i / fy);
verts.Add(v);
phi += inc;
}
y += lenstep;
phi = 0.0f;
}
#endregion
#region Add Indices Tube
int indstart;
for (int i = 0; i < resY; i++)
{
indstart = resX * i;
int j;
for (j = 0; j < resX - 1; j++)
{
inds.Add(indstart + j);
inds.Add(indstart + resX + j);
inds.Add(indstart + j + 1);
inds.Add(indstart + j + 1);
inds.Add(indstart + j + resX);
inds.Add(indstart + j + resX + 1);
}
inds.Add(indstart + j);
inds.Add(indstart + resX + j);
inds.Add(indstart);
inds.Add(indstart + j + resX);
inds.Add(indstart + resX);
inds.Add(indstart);
}
if (caps)
{
indstart = verts.Count;
y = lenstart;
Pos4Norm3Tex2Vertex v = new Pos4Norm3Tex2Vertex();
v.Position = new Vector4(0, y, 0, 1.0f);
v.Normals = new Vector3(0.0f, -1.0f, 0.0f);
v.Normals.Normalize();
verts.Add(v);
phi = 0.0f;
for (int j = 0; j < resX; j++)
{
float x = Convert.ToSingle(Math.Cos(phi)) * radius1;
float z = Convert.ToSingle(Math.Sin(phi)) * radius1;
v.Position = new Vector4(x, y, z, 1.0f);
verts.Add(v);
phi += inc;
}
for (int j = 1; j < resX + 1; j++)
{
inds.Add(indstart);
inds.Add(indstart + j);
if (j == resX)
{
inds.Add(indstart + 1);
}
else
{
inds.Add(indstart + j + 1);
}
}
indstart += (resX + 1);
y = lenstart + length;
v = new Pos4Norm3Tex2Vertex();
v.Position = new Vector4(0, y, 0, 1.0f);
v.Normals = new Vector3(0.0f, 1.0f, 0.0f);
v.Normals.Normalize();
verts.Add(v);
phi = 0.0f;
for (int j = 0; j < resX; j++)
{
float x = Convert.ToSingle(Math.Cos(phi)) * radius2;
float z = Convert.ToSingle(Math.Sin(phi)) * radius2;
v.Position = new Vector4(x, y, z, 1.0f);
verts.Add(v);
phi += inc;
}
for (int j = 1; j < resX + 1; j++)
{
inds.Add(indstart + j);
inds.Add(indstart);
if (j == resX)
{
inds.Add(indstart + 1);
}
else
{
inds.Add(indstart + j + 1);
}
}
}
#endregion
DataStream ds = new DataStream(verts.Count * Pos4Norm3Tex2Vertex.VertexSize, true, true);
ds.Position = 0;
ds.WriteRange(verts.ToArray());
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(inds.Count * 4, true, true);
indexstream.WriteRange(inds.ToArray());
indexstream.Position = 0;
geom.VertexBuffer = vbuffer;
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.InputLayout = Pos4Norm3Tex2Vertex.Layout;
geom.Topology = PrimitiveTopology.TriangleList;
geom.VerticesCount = vcount;
geom.VertexSize = Pos4Norm3Tex2Vertex.VertexSize;
//Since cylinder can be a cone, max box is max of radius
float maxrad = radius1 > radius2 ? radius1 : radius2;
geom.HasBoundingBox = true;
geom.BoundingBox = new BoundingBox(new Vector3(-maxrad, -lenstart, -maxrad), new Vector3(maxrad, lenstart, maxrad));
return(geom);
}
