protected static int ToPointsBuffer
(
Point point,
out DB3D.VertexFormatBits vertexFormatBits,
out DB3D.VertexBuffer vb, out int vertexCount,
out DB3D.IndexBuffer ib
)
{
int pointsCount = 0;
if (point.Location.IsValid)
{
pointsCount = 1;
vertexCount = 1;
vertexFormatBits = DB3D.VertexFormatBits.Position;
vb = new DB3D.VertexBuffer(pointsCount * DB3D.VertexPosition.GetSizeInFloats());
vb.Map(pointsCount * DB3D.VertexPosition.GetSizeInFloats());
using (var vstream = vb.GetVertexStreamPosition())
{
vstream.AddVertex(new DB3D.VertexPosition(RawEncoder.AsXYZ(point.Location)));
}
vb.Unmap();
ib = IndexPointsBuffer(pointsCount);
}
else
{
vertexFormatBits = 0;
vb = null; vertexCount = 0;
ib = null;
}
return(pointsCount);
}
protected static int ToPolylineBuffer
(
Polyline polyline,
out DB3D.VertexFormatBits vertexFormatBits,
out DB3D.VertexBuffer vb, out int vertexCount,
out DB3D.IndexBuffer ib
)
{
int linesCount = 0;
if (polyline.SegmentCount > 0)
{
linesCount = polyline.SegmentCount;
vertexCount = polyline.Count;
vertexFormatBits = DB3D.VertexFormatBits.Position;
vb = new DB3D.VertexBuffer(vertexCount * DB3D.VertexPosition.GetSizeInFloats());
vb.Map(vertexCount * DB3D.VertexPosition.GetSizeInFloats());
using (var vstream = vb.GetVertexStreamPosition())
{
foreach (var v in polyline)
{
vstream.AddVertex(new DB3D.VertexPosition(RawEncoder.AsXYZ(v)));
}
}
vb.Unmap();
ib = IndexLinesBuffer(vertexCount);
}
else
{
vertexFormatBits = 0;
vb = null; vertexCount = 0;
ib = null;
}
return(linesCount);
}
public static bool HasVertexColors(DB3D.VertexFormatBits vertexFormatBits) => (((int)vertexFormatBits) & 4) != 0;
public static bool HasVertexNormals(DB3D.VertexFormatBits vertexFormatBits) => (((int)vertexFormatBits) & 2) != 0;
protected static int ToPointsBuffer
(
PointCloud pointCloud,
Primitive.Part part,
out DB3D.VertexFormatBits vertexFormatBits,
out DB3D.VertexBuffer vb, out int vertexCount,
out DB3D.IndexBuffer ib
)
{
int pointsCount = part.VertexCount;
int normalCount = pointCloud.ContainsNormals ? pointsCount : 0;
int colorsCount = pointCloud.ContainsColors ? pointsCount : 0;
bool hasPoints = pointsCount > 0;
bool hasNormals = normalCount == pointsCount;
bool hasColors = colorsCount == pointsCount;
if (hasPoints)
{
if (hasNormals)
{
if (hasColors)
{
vertexFormatBits = DB3D.VertexFormatBits.PositionNormalColored;
vb = new DB3D.VertexBuffer(pointsCount * DB3D.VertexPositionNormalColored.GetSizeInFloats());
vb.Map(pointsCount * DB3D.VertexPositionNormalColored.GetSizeInFloats());
using (var vstream = vb.GetVertexStreamPositionNormalColored())
{
for (int p = part.StartVertexIndex; p < part.EndVertexIndex; ++p)
{
var point = pointCloud[p];
var c = new DB.ColorWithTransparency(point.Color.R, point.Color.G, point.Color.B, 255u - point.Color.A);
vstream.AddVertex(new DB3D.VertexPositionNormalColored(RawEncoder.AsXYZ(point.Location), RawEncoder.AsXYZ(point.Normal), c));
}
}
vb.Unmap();
}
else
{
vertexFormatBits = DB3D.VertexFormatBits.PositionNormal;
vb = new DB3D.VertexBuffer(pointsCount * DB3D.VertexPositionNormal.GetSizeInFloats());
vb.Map(pointsCount * DB3D.VertexPositionNormal.GetSizeInFloats());
using (var vstream = vb.GetVertexStreamPositionNormal())
{
for (int p = part.StartVertexIndex; p < part.EndVertexIndex; ++p)
{
var point = pointCloud[p];
vstream.AddVertex(new DB3D.VertexPositionNormal(RawEncoder.AsXYZ(point.Location), RawEncoder.AsXYZ(point.Normal)));
}
}
vb.Unmap();
}
}
else
{
if (hasColors)
{
vertexFormatBits = DB3D.VertexFormatBits.PositionColored;
vb = new DB3D.VertexBuffer(pointsCount * DB3D.VertexPositionColored.GetSizeInFloats());
vb.Map(pointsCount * DB3D.VertexPositionColored.GetSizeInFloats());
using (var vstream = vb.GetVertexStreamPositionColored())
{
for (int p = part.StartVertexIndex; p < part.EndVertexIndex; ++p)
{
var point = pointCloud[p];
var c = new DB.ColorWithTransparency(point.Color.R, point.Color.G, point.Color.B, 255u - point.Color.A);
vstream.AddVertex(new DB3D.VertexPositionColored(RawEncoder.AsXYZ(point.Location), c));
}
}
vb.Unmap();
}
else
{
vertexFormatBits = DB3D.VertexFormatBits.Position;
vb = new DB3D.VertexBuffer(pointsCount * DB3D.VertexPosition.GetSizeInFloats());
vb.Map(pointsCount * DB3D.VertexPosition.GetSizeInFloats());
using (var vstream = vb.GetVertexStreamPosition())
{
for (int p = part.StartVertexIndex; p < part.EndVertexIndex; ++p)
{
var point = pointCloud[p];
vstream.AddVertex(new DB3D.VertexPosition(RawEncoder.AsXYZ(point.Location)));
}
}
vb.Unmap();
}
}
ib = IndexPointsBuffer(pointsCount);
}
else
{
vertexFormatBits = 0;
vb = null;
ib = null;
}
vertexCount = pointsCount;
return(pointsCount);
}
protected static DB3D.VertexBuffer ToVertexBuffer
(
Mesh mesh,
Primitive.Part part,
out DB3D.VertexFormatBits vertexFormatBits,
System.Drawing.Color color = default
)
{
int verticesCount = part.EndVertexIndex - part.StartVertexIndex;
int normalCount = mesh.Normals.Count == mesh.Vertices.Count ? verticesCount : 0;
int colorsCount = color.IsEmpty ? (mesh.VertexColors.Count == mesh.Vertices.Count ? verticesCount : 0) : verticesCount;
bool hasVertices = verticesCount > 0;
bool hasNormals = normalCount > 0;
bool hasColors = colorsCount > 0;
if (hasVertices)
{
var vertices = mesh.Vertices;
if (hasNormals)
{
var normals = mesh.Normals;
if (hasColors)
{
vertexFormatBits = DB3D.VertexFormatBits.PositionNormalColored;
var colors = mesh.VertexColors;
var vb = new DB3D.VertexBuffer(verticesCount * DB3D.VertexPositionNormalColored.GetSizeInFloats());
vb.Map(verticesCount * DB3D.VertexPositionNormalColored.GetSizeInFloats());
using (var stream = vb.GetVertexStreamPositionNormalColored())
{
for (int v = part.StartVertexIndex; v < part.EndVertexIndex; ++v)
{
var c = !color.IsEmpty ? color : colors[v];
uint T = Math.Max(1, 255u - c.A);
stream.AddVertex(new DB3D.VertexPositionNormalColored(RawEncoder.AsXYZ(vertices[v]), RawEncoder.AsXYZ(normals[v]), new DB.ColorWithTransparency(c.R, c.G, c.B, T)));
}
}
vb.Unmap();
return(vb);
}
else
{
vertexFormatBits = DB3D.VertexFormatBits.PositionNormal;
var sizeInFloats = DB3D.VertexPositionNormal.GetSizeInFloats();
var vb = new DB3D.VertexBuffer(verticesCount * sizeInFloats);
vb.Map(verticesCount * sizeInFloats);
using (var stream = vb.GetVertexStreamPositionNormal())
{
for (int v = part.StartVertexIndex; v < part.EndVertexIndex; ++v)
{
stream.AddVertex(new DB3D.VertexPositionNormal(RawEncoder.AsXYZ(vertices[v]), RawEncoder.AsXYZ(normals[v])));
}
}
vb.Unmap();
return(vb);
}
}
else
{
if (hasColors)
{
vertexFormatBits = DB3D.VertexFormatBits.PositionColored;
var colors = mesh.VertexColors;
var vb = new DB3D.VertexBuffer(verticesCount * DB3D.VertexPositionColored.GetSizeInFloats());
vb.Map(verticesCount * DB3D.VertexPositionColored.GetSizeInFloats());
using (var stream = vb.GetVertexStreamPositionColored())
{
for (int v = part.StartVertexIndex; v < part.EndVertexIndex; ++v)
{
var c = !color.IsEmpty ? color : colors[v];
uint T = Math.Max(1, 255u - c.A);
stream.AddVertex(new DB3D.VertexPositionColored(RawEncoder.AsXYZ(vertices[v]), new DB.ColorWithTransparency(c.R, c.G, c.B, T)));
}
}
vb.Unmap();
return(vb);
}
else
{
vertexFormatBits = DB3D.VertexFormatBits.Position;
var vb = new DB3D.VertexBuffer(verticesCount * DB3D.VertexPosition.GetSizeInFloats());
vb.Map(verticesCount * DB3D.VertexPosition.GetSizeInFloats());
using (var stream = vb.GetVertexStreamPosition())
{
for (int v = part.StartVertexIndex; v < part.EndVertexIndex; ++v)
{
stream.AddVertex(new DB3D.VertexPosition(RawEncoder.AsXYZ(vertices[v])));
}
}
vb.Unmap();
return(vb);
}
}
}
vertexFormatBits = 0;
return(null);
}
