// ---- METHODS (PUBLIC) ---------------------------------------------------------------------------------------
/// <summary>
/// Gets an array of <see cref="Vector2F"/> values representing the attributes data in each element.
/// </summary>
/// <param name="attribute">The <see cref="FvtxVertexAttribute"/>, which data is referenced.</param>
/// <returns>An array containing the attributes data in each element.</returns>
public Vector2F[] GetAttributeDataAsVector2F(FvtxVertexAttribute attribute)
{
List<Vector2F> typedData = new List<Vector2F>();
using (BinaryDataReader reader = new BinaryDataReader(new MemoryStream(Data)))
{
reader.ByteOrder = ByteOrder.BigEndian;
// Go through the array elements.
for (int i = 0; i < Data.Length; i += (int)Stride)
{
reader.Position = i + attribute.Offset;
switch (attribute.Format)
{
case FvtxVertexAttributeFormat.Two_32Bit_Float:
typedData.Add(reader.ReadVector2F());
break;
case FvtxVertexAttributeFormat.Two_16Bit_Normalized:
ushort x = reader.ReadUInt16();
ushort y = reader.ReadUInt16();
typedData.Add(new Vector2F(x / 65535f, y / 65535f));
break;
default:
throw new BfresException("Cannot retrieve attribute data as Vector2F: Mismatching format.");
}
}
}
return typedData.ToArray();
}
private void LoadAttributes(BfresLoaderContext context)
{
// Read in the attributes from the array and directly map them to the buffers.
context.Reader.Position = Internal.AttributeArrayOffset.ToFile;
for (int i = 0; i < Internal.AttributeCount; i++)
{
FvtxVertexAttribute attribute = new FvtxVertexAttribute(context);
if (Data[attribute.Internal.BufferIndex].Attributes == null)
{
Data[attribute.Internal.BufferIndex].Attributes = new List<FvtxVertexAttribute>();
}
Data[attribute.Internal.BufferIndex].Attributes.Add(attribute);
}
// Read in the index group.
context.Reader.Position = Internal.AttributeIndexGroupOffset.ToFile;
Internal.AttributeIndexGroup = new BfresIndexGroup(context);
}
/// <summary>
/// Gets an array of <see cref="Vector3F"/> values representing the attributes data in each element.
/// </summary>
/// <param name="attribute">The <see cref="FvtxVertexAttribute"/>, which data is referenced.</param>
/// <returns>An array containing the attributes data in each element.</returns>
public Vector3F[] GetAttributeDataAsVector3F(FvtxVertexAttribute attribute)
{
List<Vector3F> typedData = new List<Vector3F>();
using (BinaryDataReader reader = new BinaryDataReader(new MemoryStream(Data)))
{
reader.ByteOrder = ByteOrder.BigEndian;
// Go through the array elements.
for (int i = 0; i < Data.Length; i += (int)Stride)
{
reader.Position = i + attribute.Offset;
switch (attribute.Format)
{
case FvtxVertexAttributeFormat.Three_32Bit_Float:
typedData.Add(reader.ReadVector3F());
break;
case FvtxVertexAttributeFormat.Three_10Bit_Signed:
// Actually 32 bits, first 2 bits always 0b01. Packed like 01XXXXXXXXXXYYYYYYYYYYZZZZZZZZZZ.
uint packedBytes = reader.ReadUInt32();
short x = (short)((packedBytes >> 20) & 0x3FF);
short y = (short)((packedBytes >> 10) & 0x3FF);
short z = (short)(packedBytes & 0x3FF);
// Divide by 511 to get the float value.
typedData.Add(new Vector3F(x / 511f, y / 511f, z / 511f));
break;
default:
throw new BfresException("Cannot retrieve attribute data as Vector3F: Mismatching format.");
}
}
}
return typedData.ToArray();
}
