/// <summary>
/// Adds a mesh to this transform
/// </summary>
/// <param name="_Mesh">The mesh to add</param>
/// <remarks>This will transform into referenced shapes in the JSON file</remarks>
public void AddMesh( LoaderTempMesh _Mesh )
{
m_Meshes.Add( _Mesh );
}
/// <summary>
/// Creates a Cirrus mesh node
/// </summary>
/// <param name="_Scene"></param>
/// <param name="_FBXMesh"></param>
/// <returns></returns>
protected Scene.Nodes.Mesh CreateMesh( FBXImporter.NodeMesh _FBXMesh, Scene.Nodes.Node _Parent )
{
// Create a temporary mesh that will be optimized later, when all meshes have been loaded
LoaderTempMesh TempMesh = new LoaderTempMesh( this, _FBXMesh.Name );
if ( m_bGenerateBoundingBoxes )
TempMesh.BoundingBox = new WMath.BoundingBox( m_ScaleFactor * _FBXMesh.BoundingBox.m_Min, m_ScaleFactor * _FBXMesh.BoundingBox.m_Max );
// Handle pivot & reset X-Form
if ( m_bResetXForm )
TempMesh.Pivot = _FBXMesh.Pivot; // Storing the mesh's pivot will have the effect of composing vertices with that matrix, actually performing the "reset X-Form" operation
// else
// Transform.Pivot = _FBXNode.Pivot; // Storing the mesh's pivot here will simply compose the mesh's transform with its pivot
// Setup compulsory vertices and triangles
Point[] SourceVertices = _FBXMesh.Vertices;
Point[] ScaledVertices = new Point[SourceVertices.Length];
for ( int VertexIndex=0; VertexIndex < _FBXMesh.VerticesCount; VertexIndex++ )
ScaledVertices[VertexIndex] = m_ScaleFactor * SourceVertices[VertexIndex];
TempMesh.SetVertices( ScaledVertices );
TempMesh.SetFaces( _FBXMesh.Triangles );
// Setup all the possible recognized layers
foreach ( FBXImporter.Layer Layer in _FBXMesh.Layers )
foreach ( FBXImporter.LayerElement LE in Layer.Elements )
{
switch ( LE.ElementType )
{
case FBXImporter.LayerElement.ELEMENT_TYPE.MATERIAL:
case FBXImporter.LayerElement.ELEMENT_TYPE.UV:
case FBXImporter.LayerElement.ELEMENT_TYPE.NORMAL:
case FBXImporter.LayerElement.ELEMENT_TYPE.TANGENT:
case FBXImporter.LayerElement.ELEMENT_TYPE.BINORMAL:
case FBXImporter.LayerElement.ELEMENT_TYPE.VERTEX_COLOR:
case FBXImporter.LayerElement.ELEMENT_TYPE.SMOOTHING:
TempMesh.AddLayerElement( LE );
break;
default:
break; // Other types are not supported (or irrelevant)...
}
}
// Build un-optimized primitives
TempMesh.BuildPrimitives();
// Create the final scene mesh and tie it to our temporary mesh
FBX.Scene.Nodes.Mesh Mesh = m_Scene.CreateMesh( _FBXMesh.Name, _Parent, _FBXMesh.LocalTransform );
m_TempMesh2FinalMesh[TempMesh] = Mesh;
// Add some properties
Mesh.Visible = _FBXMesh.Visible;
// FBXImporter.ObjectProperty PropertyCastShadow = _FBXMesh.FindUserProperty( "CastShadow" );
// Mesh.CastShadow = PropertyCastShadow != null ? (bool) PropertyCastShadow.Value : true;
Mesh.CastShadow = true;
Mesh.ReceiveShadow = true;
return Mesh;
}
/// <summary>
/// Replaces a layer element from this mesh by a reference to another element from another mesh
/// </summary>
/// <param name="_LayerElementSource">The source layer element to replace</param>
/// <param name="_OwnerMesh">The mesh that owns the referenced layer element</param>
/// <param name="_LayerElementReference">The layer element to reference in place of our own layer element</param>
public void ReplaceLayerElementByAReference( FBXImporter.LayerElement _LayerElementSource, LoaderTempMesh _OwnerMesh, FBXImporter.LayerElement _LayerElementReference )
{
m_LayerElements.Remove( _LayerElementSource );
ReferenceLayerElement RLE = new ReferenceLayerElement();
RLE.m_Owner = _OwnerMesh;
RLE.m_LayerElement = _LayerElementReference;
m_LayerElementsReference.Add( RLE );
}
/// <summary>
/// Attempts to merge this mesh with the provided master mesh
/// If the provided mesh can be used as a master for this mesh then the identical layer elements are "shared by reference"
/// and the layer elements that differ are kept in this mesh and added as external elements to the master mesh.
///
/// In the end, only the master meshes will be optimized, and this mesh's data along with them so all is left is to retrieve
/// the optimized referenced data from the master mesh and make them our own.
/// </summary>
/// <returns>True if the merge was successful</returns>
public bool MergeWithMasterMesh( LoaderTempMesh _Master )
{
if ( !_Master.IsMaster )
return false; // Not a master mesh...
// 1] Compare vertex, faces & primitives counts (easy comparisons first)
if ( m_Vertices.Length != _Master.m_Vertices.Length )
return false; // Not identical !
if ( m_Faces.Length != _Master.m_Faces.Length )
return false; // Not identical !
if ( m_Primitives.Count != _Master.m_Primitives.Count )
return false; // Not identical !
// 2] Compare each primitive's vertex & faces count
for ( int PrimitiveIndex=0; PrimitiveIndex < m_Primitives.Count; PrimitiveIndex++ )
{
Primitive P0 = m_Primitives[PrimitiveIndex];
Primitive P1 = _Master.m_Primitives[PrimitiveIndex];
if ( P0.FacesCount != P1.FacesCount )
return false; // Not identical !
}
// 3] Compare the vertices one by one
for ( int VertexIndex=0; VertexIndex < m_Vertices.Length; VertexIndex++ )
{
Point V0 = m_Vertices[VertexIndex];
Point V1 = _Master.m_Vertices[VertexIndex];
if ( V0 != V1 )
return false;
}
// 4] Compare the faces one by one
for ( int FaceIndex=0; FaceIndex < m_Faces.Length; FaceIndex++ )
{
FBXImporter.NodeMesh.Triangle F0 = m_Faces[FaceIndex];
FBXImporter.NodeMesh.Triangle F1 = _Master.m_Faces[FaceIndex];
if ( F0.Vertex0 != F1.Vertex0 || F0.Vertex1 != F1.Vertex1 || F0.Vertex2 != F1.Vertex2 )
return false;
}
//////////////////////////////////////////////////////////////////////////
// At this point, the 2 meshes are deemed identical (up to the point of Vertices and Faces at least)
//////////////////////////////////////////////////////////////////////////
// Make this mesh a slave
m_MasterMesh = _Master;
// 5] Compare each of our Layer Elements to the master's and merge them
// _ Layer Elements that are identical to the master will be replaced by references to the master's
// _ Layer Elements that are different will be kept and will be added as external elements to the master
//
FBXImporter.LayerElement[] LayerElements = m_LayerElements.ToArray();
foreach ( FBXImporter.LayerElement LE0 in LayerElements )
{
FBXImporter.LayerElement LE1 = null;
foreach ( FBXImporter.LayerElement MasterLE in _Master.m_LayerElements )
if ( LE0.Compare( MasterLE ) )
{ // Found a match !
LE1 = MasterLE;
break;
}
if ( LE1 != null )
{ // We found a matching layer element in the master mesh!
// Now, we simply replace our own element by a reference to the master's element
ReplaceLayerElementByAReference( LE0, _Master, LE1 );
}
else
{ // We couldn't find a matching layer element!
// That means this layer element is unique to our instance so we add it as an external element in the master mesh
// When the master mesh will be consolidated, it will take our elements into account as well...
_Master.AddExternalLayerElement( this, LE0 );
}
}
return true;
}
/// <summary>
/// Adds a layer element from another (slave) mesh
/// </summary>
/// <param name="_OwnerMesh">The mesh owning the layer element to add</param>
/// <param name="_LayerElement">The external layer element</param>
public void AddExternalLayerElement( LoaderTempMesh _OwnerMesh, FBXImporter.LayerElement _LayerElement )
{
ExternalLayerElement ELE = new ExternalLayerElement();
ELE.m_Owner = _OwnerMesh;
ELE.m_LayerElement = _LayerElement;
m_LayerElementsExternal.Add( ELE );
// Add this mesh to our list of slave meshes
if ( m_SlaveMesh2Registered.ContainsKey( _OwnerMesh ) )
return; // Already registered!
m_SlaveMeshes.Add( _OwnerMesh );
m_SlaveMesh2Registered[_OwnerMesh] = true;
}
public Primitive( LoaderTempMesh _OwnerMesh, SceneLoader _Owner, string _Name, FBXImporter.Material _Material )
: base(_Owner, _Name)
{
m_OwnerMesh = _OwnerMesh;
m_Material = _Material;
// if ( m_Material == null )
// throw new Exception( "Invalid material for primitive \"" + _Name + "\"!" );
}
public Scene.Nodes.Mesh.Primitive CreatePrimitive( LoaderTempMesh.Primitive _SourcePrimitive, Scene.Nodes.Mesh _ParentMesh, string _Name, Scene.Materials.MaterialParameters _MatParams )
{
m_SourcePrimitive = _SourcePrimitive;
Scene.Nodes.Mesh.Primitive Target = _ParentMesh.AddPrimitive( _Name, _MatParams, _SourcePrimitive.VerticesCount, _SourcePrimitive.FacesCount );
// Build the primitive's triangles
for ( int FaceIndex=0; FaceIndex < _SourcePrimitive.FacesCount; FaceIndex++ )
{
Target.Faces[FaceIndex].V0 = _SourcePrimitive.Faces[FaceIndex].V0.m_Index;
Target.Faces[FaceIndex].V1 = _SourcePrimitive.Faces[FaceIndex].V1.m_Index;
Target.Faces[FaceIndex].V2 = _SourcePrimitive.Faces[FaceIndex].V2.m_Index;
}
// Build the primitive's vertex streams
int[] StreamIndices = new int[8];
foreach ( LoaderTempMesh.Primitive.VertexStream Stream in m_SourcePrimitive.VertexStreams )
{
Scene.Nodes.Mesh.Primitive.VertexStream.USAGE Usage = Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.UNKNOWN;
Scene.Nodes.Mesh.Primitive.VertexStream.FIELD_TYPE FieldType = Scene.Nodes.Mesh.Primitive.VertexStream.FIELD_TYPE.UNKNOWN;
object Content = null;
switch ( Stream.StreamType )
{
case LoaderTempMesh.VERTEX_INFO_TYPE.POSITION:
{
Usage = Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.POSITION;
FieldType = Scene.Nodes.Mesh.Primitive.VertexStream.FIELD_TYPE.FLOAT3;
Vector[] T = new Vector[_SourcePrimitive.VerticesCount];
Content = T;
for ( int i=0; i < _SourcePrimitive.VerticesCount; i++ )
{
T[i] = (Vector) (Stream.Stream[i] as WMath.Point);
}
}
break;
case LoaderTempMesh.VERTEX_INFO_TYPE.NORMAL:
{
Usage = Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.NORMAL;
FieldType = Scene.Nodes.Mesh.Primitive.VertexStream.FIELD_TYPE.FLOAT3;
Vector[] T = new Vector[_SourcePrimitive.VerticesCount];
Content = T;
for ( int i=0; i < _SourcePrimitive.VerticesCount; i++ )
{
T[i] = Stream.Stream[i] as WMath.Vector;
}
}
break;
case LoaderTempMesh.VERTEX_INFO_TYPE.TANGENT:
{
Usage = Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TANGENT;
FieldType = Scene.Nodes.Mesh.Primitive.VertexStream.FIELD_TYPE.FLOAT3;
Vector[] T = new Vector[_SourcePrimitive.VerticesCount];
Content = T;
for ( int i=0; i < _SourcePrimitive.VerticesCount; i++ )
{
T[i] = Stream.Stream[i] as WMath.Vector;
}
}
break;
case LoaderTempMesh.VERTEX_INFO_TYPE.BINORMAL:
{
Usage = Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.BITANGENT;
FieldType = Scene.Nodes.Mesh.Primitive.VertexStream.FIELD_TYPE.FLOAT3;
Vector[] T = new Vector[_SourcePrimitive.VerticesCount];
Content = T;
for ( int i=0; i < _SourcePrimitive.VerticesCount; i++ )
{
T[i] = Stream.Stream[i] as WMath.Vector;
}
}
break;
case LoaderTempMesh.VERTEX_INFO_TYPE.TEXCOORD1D:
{
Usage = Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TEXCOORDS;
FieldType = Scene.Nodes.Mesh.Primitive.VertexStream.FIELD_TYPE.FLOAT;
float[] T = new float[_SourcePrimitive.VerticesCount];
Content = T;
for ( int i=0; i < _SourcePrimitive.VerticesCount; i++ )
{
T[i] = (float) Stream.Stream[i];
}
}
break;
case LoaderTempMesh.VERTEX_INFO_TYPE.TEXCOORD2D:
{
Usage = Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TEXCOORDS;
FieldType = Scene.Nodes.Mesh.Primitive.VertexStream.FIELD_TYPE.FLOAT2;
Vector2D[] T = new Vector2D[_SourcePrimitive.VerticesCount];
Content = T;
for ( int i=0; i < _SourcePrimitive.VerticesCount; i++ )
{
T[i] = Stream.Stream[i] as WMath.Vector2D;
T[i].Y = 1.0f - T[i].Y; // Here we must complement the V coordinate as MAX has the bad habit of inverting the Y axis of images!
}
}
break;
case LoaderTempMesh.VERTEX_INFO_TYPE.TEXCOORD3D:
{
Usage = Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.TEXCOORDS;
FieldType = Scene.Nodes.Mesh.Primitive.VertexStream.FIELD_TYPE.FLOAT3;
Vector[] T = new Vector[_SourcePrimitive.VerticesCount];
Content = T;
for ( int i=0; i < _SourcePrimitive.VerticesCount; i++ )
{
T[i] = Stream.Stream[i] as WMath.Vector;
T[i].Y = 1.0f - T[i].Y; // Here we must complement the V coordinate as MAX has the bad habit of inverting the Y axis of images!
}
}
break;
case LoaderTempMesh.VERTEX_INFO_TYPE.COLOR_HDR:
{
Usage = Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.COLOR_HDR;
FieldType = Scene.Nodes.Mesh.Primitive.VertexStream.FIELD_TYPE.FLOAT4;
Vector4D[] T = new Vector4D[_SourcePrimitive.VerticesCount];
Content = T;
for ( int i=0; i < _SourcePrimitive.VerticesCount; i++ )
{
T[i] = Stream.Stream[i] as WMath.Vector4D;
}
}
break;
}
if ( Usage == Scene.Nodes.Mesh.Primitive.VertexStream.USAGE.UNKNOWN
|| FieldType == Scene.Nodes.Mesh.Primitive.VertexStream.FIELD_TYPE.UNKNOWN )
continue; // Unsupported... Should we throw?
if ( Content == null )
throw new Exception( "Invalid content!" );
int StreamIndexIndex = (int) Usage - 1; // Skip UNKNOWN usage and use the value as "stream type"
int StreamIndex = StreamIndices[StreamIndexIndex];
StreamIndices[StreamIndexIndex]++; // Increase stream index
Target.AddVertexStream( Usage, FieldType, StreamIndex, Content );
StreamIndex++;
}
return Target;
}
