public DX11IndexedGeometry IcoGrid(IcoGrid settings)
{
IcoGridBuilder builder = new IcoGridBuilder();
PrimitiveInfo info = builder.GetPrimitiveInfo(settings);
ListGeometryAppender appender = new ListGeometryAppender();
builder.Construct(settings, appender.AppendVertex, appender.AppendIndex);
float invmx = 1.0f / builder.MaxX;
float invmy = 1.0f / builder.MaxY;
appender.TransformVertices((v) =>
{
v.Position.X *= invmx;
v.Position.X -= 0.5f;
v.Position.Y *= invmy;
v.Position.Y -= 0.5f;
return(v);
});
return(FromAppender(settings, appender, info));
}
public DX11IndexedGeometry IcoGrid(IcoGrid grid)
{
Vector2 size = grid.Size;
int resX = grid.ResolutionX;
int resY = grid.ResolutionY;
float fdispx = -0.5f;
float fdispy = (float)Math.Sqrt(0.75);
List <Pos4Norm3Tex2Vertex> verts = new List <Pos4Norm3Tex2Vertex>();
Pos4Norm3Tex2Vertex v = new Pos4Norm3Tex2Vertex();
v.Normals = new Vector3(0, 0, -1);
v.TexCoords = new Vector2(0, 0);
float maxx = float.MinValue;
float maxy = float.MinValue;
bool bdisp = true;
float y = 0.0f;
for (int i = 0; i < resX; i++)
{
bdisp = !bdisp;
int cnt = resY;
for (int j = 0; j < cnt; j++)
{
if (bdisp)
{
v.Position = new Vector4((float)j - 0.5f, y, 0.0f, 1.0f);
if (v.Position.X > maxx)
{
maxx = v.Position.X;
}
if (v.Position.Y > maxy)
{
maxy = v.Position.Y;
}
}
else
{
v.Position = new Vector4((float)j, y, 0.0f, 1.0f);
if (v.Position.X > maxx)
{
maxx = v.Position.X;
}
if (v.Position.Y > maxy)
{
maxy = v.Position.Y;
}
}
verts.Add(v);
}
y += fdispy;
}
float invmx = 1.0f / maxx;
float invmy = 1.0f / maxy;
for (int i = 0; i < verts.Count; i++)
{
Pos4Norm3Tex2Vertex v2 = verts[i];
v2.Position.X *= invmx;
v2.Position.X -= 0.5f;
v2.Position.Y *= invmy;
v2.Position.Y -= 0.5f;
verts[i] = v2;
}
List <int> inds = new List <int>();
bool bflip = true;
int nextrow = resY;
int a = 1;
for (int i = 0; i < resX - 1; i++)
{
bflip = !bflip;
for (int j = 0; j < resY - 1; j++)
{
int linestart = i * resY;
int lineup = (i + 1) * resY;
if (!bflip)
{
inds.Add(lineup + j);
inds.Add(linestart + j);
inds.Add(lineup + j + 1);
inds.Add(linestart + j);
inds.Add(linestart + j + 1);
inds.Add(lineup + j + 1);
}
else
{
inds.Add(linestart + j);
inds.Add(linestart + j + 1);
inds.Add(lineup + j);
inds.Add(lineup + j);
inds.Add(linestart + j + 1);
inds.Add(lineup + j + 1);
}
}
a += nextrow;
}
DX11IndexedGeometry geom = new DX11IndexedGeometry(context);
geom.Tag = grid;
geom.PrimitiveType = grid.PrimitiveType;
DataStream vertexstream = new DataStream(verts.Count * Pos4Norm3Tex2Vertex.VertexSize, true, true);
vertexstream.Position = 0;
vertexstream.WriteRange(verts.ToArray());
vertexstream.Position = 0;
var vertices = BufferHelper.CreateDynamicVertexBuffer(context, vertexstream, true);
var indexstream = new DataStream(inds.Count * 4, true, true);
indexstream.WriteRange(inds.ToArray());
indexstream.Position = 0;
geom.VertexBuffer = vertices;
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.InputLayout = Pos4Norm3Tex2Vertex.Layout;
geom.Topology = PrimitiveTopology.TriangleList;
geom.VerticesCount = verts.Count;
geom.VertexSize = Pos4Norm3Tex2Vertex.VertexSize;
geom.HasBoundingBox = false;
return(geom);
}
public DX11IndexedGeometry IcoGrid(IcoGrid grid)
{
Vector2 size = grid.Size;
int resX = grid.ResolutionX;
int resY = grid.ResolutionY;
float fdispx = -0.5f;
float fdispy = (float)Math.Sqrt(0.75);
List<Pos4Norm3Tex2Vertex> verts = new List<Pos4Norm3Tex2Vertex>();
Pos4Norm3Tex2Vertex v = new Pos4Norm3Tex2Vertex();
v.Normals = new Vector3(0, 0, -1);
v.TexCoords = new Vector2(0, 0);
float maxx = float.MinValue;
float maxy = float.MinValue;
bool bdisp = true;
float y = 0.0f;
for (int i = 0; i < resX; i++)
{
bdisp = !bdisp;
int cnt = resY;
for (int j = 0; j < cnt; j++)
{
if (bdisp)
{
v.Position = new Vector4((float)j - 0.5f, y, 0.0f, 1.0f);
if (v.Position.X > maxx)
{
maxx = v.Position.X;
}
if (v.Position.Y > maxy)
{
maxy = v.Position.Y;
}
}
else
{
v.Position = new Vector4((float)j, y, 0.0f, 1.0f);
if (v.Position.X > maxx)
{
maxx = v.Position.X;
}
if (v.Position.Y > maxy)
{
maxy = v.Position.Y;
}
}
verts.Add(v);
}
y += fdispy;
}
float invmx = 1.0f / maxx;
float invmy = 1.0f / maxy;
for (int i = 0; i < verts.Count; i++)
{
Pos4Norm3Tex2Vertex v2 = verts[i];
v2.Position.X *= invmx;
v2.Position.X -= 0.5f;
v2.Position.Y *= invmy;
v2.Position.Y -= 0.5f;
verts[i] = v2;
}
List<int> inds = new List<int>();
bool bflip = true;
int nextrow = resY;
int a = 1;
for (int i = 0; i < resX - 1; i++)
{
bflip = !bflip;
for (int j = 0; j < resY - 1; j++)
{
int linestart = i * resY;
int lineup = (i + 1) * resY;
if (!bflip)
{
inds.Add(lineup + j);
inds.Add(linestart + j);
inds.Add(lineup + j + 1);
inds.Add(linestart + j);
inds.Add(linestart + j + 1);
inds.Add(lineup + j + 1);
}
else
{
inds.Add(linestart + j);
inds.Add(linestart + j + 1);
inds.Add(lineup + j);
inds.Add(lineup + j);
inds.Add(linestart + j + 1);
inds.Add(lineup + j + 1);
}
}
a += nextrow;
}
DX11IndexedGeometry geom = new DX11IndexedGeometry(context);
geom.Tag = grid;
geom.PrimitiveType = grid.PrimitiveType;
DataStream vertexstream = new DataStream(verts.Count * Pos4Norm3Tex2Vertex.VertexSize, true, true);
vertexstream.Position = 0;
vertexstream.WriteRange(verts.ToArray());
vertexstream.Position = 0;
var vertices = BufferHelper.CreateDynamicVertexBuffer(context, vertexstream, true);
var indexstream = new DataStream(inds.Count * 4, true, true);
indexstream.WriteRange(inds.ToArray());
indexstream.Position = 0;
geom.VertexBuffer = vertices;
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.InputLayout = Pos4Norm3Tex2Vertex.Layout;
geom.Topology = PrimitiveTopology.TriangleList;
geom.VerticesCount = verts.Count;
geom.VertexSize = Pos4Norm3Tex2Vertex.VertexSize;
geom.HasBoundingBox = false;
return geom;
}