public static void WritePadding(BinaryWriter bw)
{
var padding = BFast.ComputePadding(bw.BaseStream.Position);
for (var i = 0; i < padding; ++i)
{
bw.Write((byte)0);
}
}
public G3D(IEnumerable <IAttribute> attributes, BFast buffer = null, string header = null)
{
Buffer = buffer;
Header = header;
Attributes = attributes.WhereNotNull();
VertexAttribute = this.FindAttribute(AttributeType.attr_vertex);
IndexAttribute = this.FindAttribute(AttributeType.attr_index, false);
FaceSizeAttribute = this.FindAttribute(AttributeType.attr_facesize, false);
FaceIndexAttribute = this.FindAttribute(AttributeType.attr_faceindex, false);
MaterialIdAttribute = this.FindAttribute(AttributeType.attr_materialid, false);
// Check that everything is kosher
// TODO: this is a long process, only do it in specific circumstances.
//this.Validate();
}
public static G3D Create(BFast bfast)
{
if (bfast.Buffers.Count < 2)
{
throw new Exception("Expected at least two data buffers in file: header, and attribute descriptor array");
}
var header = bfast.Buffers[0].ToBytes().ToUtf8();
var descriptors = bfast.Buffers[1].ToStructs <AttributeDescriptor>();
var buffers = bfast.Buffers.Skip(2).ToArray();
if (descriptors.Length != buffers.Length)
{
throw new Exception("Incorrect number of descriptors");
}
return(new G3D(buffers.Zip(descriptors, G3DExtensions.ToAttribute), bfast, header));
}
public static List <IGeometry> LoadGeometries(this BFast bfast) => bfast.Buffers .AsParallel().AsOrdered() .Select(b => G3D.Create(b).ToIGeometry()) .ToList();
public static G3D ToG3D(this BFast bfast) => G3D.Create(bfast);
