private Mesh(int index, float[] positions, float[] normals, MeshIndices triangleIndices, float[] textureCoordinates = null, Color?color = null, float[] colors = null, string[] layer = null, string name = null)
{
Index = index;
Positions = positions ?? EmptyFloatArray;
_TriangleIndices = triangleIndices ?? EmptyMeshIndices;
Normals = normals ?? EmptyFloatArray;
TextureCoordinates = textureCoordinates ?? EmptyFloatArray;
Normals = ValidateAndRegenerateNormals(Positions, Normals, _TriangleIndices.GetIndizes().ToArray());
Colors = colors;
Color = color;
Layer = layer;
Name = name;
}
/// <summary>
/// Initializes a new instance of the <see cref="Mesh"/> class.
/// </summary>
/// <param name="index">The index of the mesh in the <see cref="MeshModelPart"/>..</param>
/// <param name="positions">The point data array.</param>
/// <param name="normals">The normal data array.</param>
/// <param name="triangleIndices">The index array.</param>
/// <param name="textureCoordinates">The texture coordinate array.</param>
/// <param name="color">The default color.</param>
/// <param name="colors">The color data array.</param>
/// <param name="layer">The layers to which this mesh belongs.</param>
/// <param name="name">The name.</param>
public Mesh(int index, float[] positions, float[] normals, int[] triangleIndices, float[] textureCoordinates = null, Color?color = null, float[] colors = null, string[] layer = null, string name = null)
: this(index, positions, normals, MeshIndices.Create(triangleIndices), textureCoordinates, color, colors, layer, name)
{
}
internal static Mesh Read(BinaryReader binaryReader, int index, Version fileVersion)
{
float[] positions = null;
float[] normals = null;
float[] textureCoordinates = null;
float[] colors = null;
MeshIndices indices = null;
Color? color = null;
string[] layer = null;
var name = string.Empty;
if (fileVersion >= FileVersion21)
{
name = binaryReader.ReadString();
}
if (binaryReader.ReadBoolean())
{
color = binaryReader.ReadArgbColor();
}
if (binaryReader.ReadBoolean())
{
positions = fileVersion == FileVersion10
? binaryReader.ReadDoubleArray(3)
: binaryReader.ReadFloatArray(3);
}
if (binaryReader.ReadBoolean())
{
normals = fileVersion == FileVersion10
? binaryReader.ReadDoubleArray(3)
: binaryReader.ReadFloatArray(3);
}
if (binaryReader.ReadBoolean())
{
indices = binaryReader.ReadIndices(positions?.Length ?? 0);
}
if (binaryReader.ReadBoolean())
{
layer = new string[binaryReader.ReadInt32()];
for (var l = 0; l < layer.Length; l++)
{
layer[l] = binaryReader.ReadString();
}
}
if (fileVersion >= FileVersion22 && binaryReader.ReadBoolean())
{
textureCoordinates = binaryReader.ReadFloatArray(2);
}
if (fileVersion >= FileVersion33 && binaryReader.ReadBoolean())
{
colors = binaryReader.ReadFloatArray(4);
}
return(new Mesh(index, positions, normals, indices, textureCoordinates, color, colors, layer, name));
}
