/// <summary>
/// Create a new Pose for this mesh or one of its submeshes.
/// </summary>
/// <param name="target">
/// The target geometry index; 0 is the shared Mesh geometry, 1+ is the
/// dedicated SubMesh geometry belonging to submesh index + 1.
/// </param>
/// <param name="name">Name to give the pose, which is optional</param>
/// <returns>A new Pose ready for population</returns>
public Pose CreatePose( ushort target, string name )
{
var retPose = new Pose( target, name );
PoseList.Add( retPose );
return retPose;
}
protected void WritePose( BinaryWriter writer, Pose pose )
{
var start_offset = writer.Seek( 0, SeekOrigin.Current );
WriteChunk( writer, MeshChunkID.Pose, 0 );
WriteString( writer, pose.Name );
WriteUShort( writer, pose.Target );
foreach ( var kvp in pose.VertexOffsetMap )
{
WritePoseVertex( writer, kvp.Key, kvp.Value );
}
var end_offset = writer.Seek( 0, SeekOrigin.Current );
writer.Seek( (int)start_offset, SeekOrigin.Begin );
WriteChunk( writer, MeshChunkID.Pose, (int)( end_offset - start_offset ) );
writer.Seek( (int)end_offset, SeekOrigin.Begin );
}
/// <summary> Utility method for applying pose animation </summary>
public void ApplyPoseToVertexData( Pose pose, VertexData data, float influence )
{
if ( targetMode == VertexAnimationTargetMode.Hardware )
{
// Hardware
// If target mode is hardware, need to bind our pose buffer
// to a target texcoord
Debug.Assert( data.HWAnimationDataList.Count == 0,
"Haven't set up hardware vertex animation elements!" );
// no use for TempBlendedBufferInfo here btw
// Set pose target as required
int hwIndex = data.HWAnimDataItemsUsed++;
// If we try to use too many poses, ignore extras
if ( hwIndex < data.HWAnimationDataList.Count )
{
HardwareAnimationData animData = data.HWAnimationDataList[ hwIndex ];
data.vertexBufferBinding.SetBinding( animData.TargetVertexElement.Source,
pose.GetHardwareVertexBuffer( data.vertexCount ) );
// save final influence in parametric
animData.Parametric = influence;
}
}
else
{
// Software
Mesh.SoftwareVertexPoseBlend( influence, pose.VertexOffsetMap, data );
}
}