protected override CpuAnimatedVertexBuffer Read(ContentReader input, CpuAnimatedVertexBuffer buffer)
{
IGraphicsDeviceService graphicsDeviceService = (IGraphicsDeviceService)input.ContentManager.ServiceProvider.GetService(typeof(IGraphicsDeviceService));
var device = graphicsDeviceService.GraphicsDevice;
// read standard VertexBuffer
var declaration = input.ReadRawObject <VertexDeclaration>();
var vertexCount = (int)input.ReadUInt32();
// int dataSize = vertexCount * declaration.VertexStride;
//byte[] data = new byte[dataSize];
//input.Read(data, 0, dataSize);
//read data
var channels = declaration.GetVertexElements();
var cpuVertices = new VertexIndicesWeightsPositionNormal[vertexCount];
var gpuVertices = new VertexPositionNormalTexture[vertexCount];
for (int i = 0; i < vertexCount; i++)
{
foreach (var channel in channels)
{
switch (channel.VertexElementUsage)
{
case VertexElementUsage.Position:
System.Diagnostics.Debug.Assert(channel.VertexElementFormat == VertexElementFormat.Vector3);
var pos = input.ReadVector3();
cpuVertices[i].Position = pos;
gpuVertices[i].Position = pos;
break;
case VertexElementUsage.Normal:
System.Diagnostics.Debug.Assert(channel.VertexElementFormat == VertexElementFormat.Vector3);
var nor = input.ReadVector3();
cpuVertices[i].Normal = nor;
gpuVertices[i].Normal = nor;
break;
case VertexElementUsage.TextureCoordinate:
System.Diagnostics.Debug.Assert(channel.VertexElementFormat == VertexElementFormat.Vector2);
var tex = input.ReadVector2();
gpuVertices[i].TextureCoordinate = tex;
break;
case VertexElementUsage.BlendWeight:
System.Diagnostics.Debug.Assert(channel.VertexElementFormat == VertexElementFormat.Vector4);
var wei = input.ReadVector4();
cpuVertices[i].BlendWeights = wei;
break;
case VertexElementUsage.BlendIndices:
System.Diagnostics.Debug.Assert(channel.VertexElementFormat == VertexElementFormat.Byte4);
var i0 = input.ReadByte();
var i1 = input.ReadByte();
var i2 = input.ReadByte();
var i3 = input.ReadByte();
cpuVertices[i].BlendIndex0 = i0;
cpuVertices[i].BlendIndex1 = i1;
cpuVertices[i].BlendIndex2 = i2;
cpuVertices[i].BlendIndex3 = i3;
break;
default:
throw new Exception();
}
}
}
// read extras
bool IsWriteOnly = input.ReadBoolean();
if (buffer == null)
{
BufferUsage usage = (IsWriteOnly) ? BufferUsage.WriteOnly : BufferUsage.None;
buffer = new CpuAnimatedVertexBuffer(device, VertexPositionNormalTexture.VertexDeclaration, vertexCount, usage);
}
buffer.SetData(gpuVertices, 0, vertexCount);
buffer.SetGpuVertices(gpuVertices);
buffer.SetCpuVertices(cpuVertices);
return(buffer);
}
internal static Native.Animation.VertexTypes.VertexIndicesWeightsPositionNormal ToNativeCpuVertex(this VertexIndicesWeightsPositionNormal source)
{
Native.Animation.VertexTypes.VertexIndicesWeightsPositionNormal result;
//result.BlendIndices = source.BlendIndices.ToInt4Data();
result.BlendIndices = new Native.Animation.Data.Int4Data()
{
X = source.BlendIndex0,
Y = source.BlendIndex1,
Z = source.BlendIndex2,
W = source.BlendIndex3,
};
result.BlendWeights = source.BlendWeights.ToNativeVector4Data();
result.Position = source.Position.ToNativeVector3Data();
result.Normal = source.Normal.ToNativeVector3Data();
return(result);
}