private IMeshStream CreateMeshStream(ISource source, string semantic)
{
var floatArray = source as FloatArraySource;
if (floatArray != null)
{
bool swapY = (semantic == Streams.TexCoord);
if (source.GetStride() == 3)
{
var arrayMeshStream = new ArrayMeshStream<Float3>(source.GetCount(), streamConverterFactory);
for (int i = 0; i < arrayMeshStream.Count; ++i)
{
var y = floatArray[i * 3 + 1];
if (swapY) y = 1.0f - y;
arrayMeshStream[i] = new Float3(floatArray[i * 3 + 0], y, floatArray[i * 3 + 2]);
}
return arrayMeshStream;
}
else if (source.GetStride() == 2)
{
var arrayMeshStream = new ArrayMeshStream<Float2>(source.GetCount(), streamConverterFactory);
for (int i = 0; i < arrayMeshStream.Count; ++i)
{
var y = floatArray[i * 2 + 1];
if (swapY) y = 1.0f - y;
arrayMeshStream[i] = new Float2(floatArray[i * 2 + 0], y);
}
return arrayMeshStream;
}
else if (source.GetStride() == 4)
{
var arrayMeshStream = new ArrayMeshStream<Float4>(source.GetCount(), streamConverterFactory);
for (int i = 0; i < arrayMeshStream.Count; ++i)
{
var y = floatArray[i * 4 + 1];
if (swapY) y = 1.0f - y;
arrayMeshStream[i] = new Float4(floatArray[i * 4 + 0], y, floatArray[i * 4 + 2], floatArray[i * 4 + 3]);
}
return arrayMeshStream;
}
}
else
{
throw new NotImplementedException();
}
throw new NotImplementedException();
}