private UltimateVertexAttribute(string name, int componentCount, MeshAttribute.AttributeDataType dataType, int index, int bufferIndex)
{
Name = name;
ComponentCount = componentCount;
DataType = dataType;
Index = index;
BufferIndex = bufferIndex;
}
/// <summary>
/// Gets the size in bytes for this data type.
/// </summary>
/// <param name="dataType">The data type for each of the attribute's components</param>
/// <returns>The number of bytes used to store <paramref name="dataType"/></returns>
public static int GetSizeInBytes(this MeshAttribute.AttributeDataType dataType)
{
switch (dataType)
{
case MeshAttribute.AttributeDataType.Float:
return(sizeof(float));
case MeshAttribute.AttributeDataType.Byte:
return(sizeof(byte));
case MeshAttribute.AttributeDataType.HalfFloat:
return(2);
case MeshAttribute.AttributeDataType.HalfFloat2:
return(2);
default:
throw new NotImplementedException($"Size not implemented for {dataType}");
}
}
private void WriteType(BinaryWriter writer, MeshAttribute.AttributeDataType type, float value)
{
switch (type)
{
case MeshAttribute.AttributeDataType.Float:
writer.Write(value);
break;
case MeshAttribute.AttributeDataType.Byte:
writer.Write((byte)value);
break;
case MeshAttribute.AttributeDataType.HalfFloat:
writer.Write((ushort)FloatToHalfFloatBits(value));
break;
case MeshAttribute.AttributeDataType.HalfFloat2:
writer.Write((ushort)FloatToHalfFloatBits(value));
break;
}
}
