/// <summary>
/// Used to build a list of sub-entities from the meshes located in the mesh.
/// </summary>
protected void BuildSubEntities()
{
// loop through the models meshes and create sub entities from them
for ( var i = 0; i < this.mesh.SubMeshCount; i++ )
{
var subMesh = this.mesh.GetSubMesh( i );
var sub = new SubEntity();
sub.Parent = this;
sub.SubMesh = subMesh;
if ( subMesh.IsMaterialInitialized )
{
sub.MaterialName = subMesh.MaterialName;
}
this.subEntityList.Add( sub );
}
}
public EntityShadowRenderable( Entity parent, HardwareIndexBuffer indexBuffer, VertexData vertexData,
bool createSeparateLightCap, SubEntity subEntity, bool isLightCap )
{
this.parent = parent;
// Save link to vertex data
this.currentVertexData = vertexData;
// Initialize render op
renderOperation.indexData = new IndexData();
renderOperation.indexData.indexBuffer = indexBuffer;
renderOperation.indexData.indexStart = 0;
// index start and count are sorted out later
// Create vertex data which just references position component (and 2 component)
renderOperation.vertexData = new VertexData();
renderOperation.vertexData.vertexDeclaration = HardwareBufferManager.Instance.CreateVertexDeclaration();
renderOperation.vertexData.vertexBufferBinding = HardwareBufferManager.Instance.CreateVertexBufferBinding();
// Map in position data
renderOperation.vertexData.vertexDeclaration.AddElement( 0, 0, VertexElementType.Float3,
VertexElementSemantic.Position );
this.originalPosBufferBinding =
vertexData.vertexDeclaration.FindElementBySemantic( VertexElementSemantic.Position ).Source;
this.positionBuffer = vertexData.vertexBufferBinding.GetBuffer( this.originalPosBufferBinding );
renderOperation.vertexData.vertexBufferBinding.SetBinding( 0, this.positionBuffer );
// Map in w-coord buffer (if present)
if ( vertexData.hardwareShadowVolWBuffer != null )
{
renderOperation.vertexData.vertexDeclaration.AddElement( 1, 0, VertexElementType.Float1,
VertexElementSemantic.TexCoords, 0 );
this.wBuffer = vertexData.hardwareShadowVolWBuffer;
renderOperation.vertexData.vertexBufferBinding.SetBinding( 1, this.wBuffer );
}
// Use same vertex start as input
renderOperation.vertexData.vertexStart = vertexData.vertexStart;
if ( isLightCap )
{
// Use original vertex count, no extrusion
renderOperation.vertexData.vertexCount = vertexData.vertexCount;
}
else
{
// Vertex count must take into account the doubling of the buffer,
// because second half of the buffer is the extruded copy
renderOperation.vertexData.vertexCount = vertexData.vertexCount*2;
if ( createSeparateLightCap )
{
// Create child light cap
lightCap = new EntityShadowRenderable( parent, indexBuffer, vertexData, false, subEntity, true );
}
}
}
/// <summary>
///
/// </summary>
/// <param name="disposeManagedResources"></param>
protected override void dispose( bool disposeManagedResources )
{
if ( !IsDisposed )
{
if ( disposeManagedResources )
{
// Dispose managed resources.
if ( lightCap != null )
{
if ( !lightCap.IsDisposed )
{
lightCap.Dispose();
}
lightCap = null;
}
if ( this.wBuffer != null )
{
if ( !this.wBuffer.IsDisposed )
{
this.wBuffer.Dispose();
}
this.wBuffer = null;
}
if ( this.positionBuffer != null )
{
if ( !this.positionBuffer.IsDisposed )
{
this.positionBuffer.Dispose();
}
this.positionBuffer = null;
}
if ( this.subEntity != null )
{
if ( !this.subEntity.IsDisposed )
{
this.subEntity.Dispose();
}
this.subEntity = null;
}
if ( this.currentVertexData != null )
{
if ( !this.currentVertexData.IsDisposed )
{
this.currentVertexData.Dispose();
}
this.currentVertexData = null;
}
}
// There are no unmanaged resources to release, but
// if we add them, they need to be released here.
}
// If it is available, make the call to the
// base class's Dispose(Boolean) method
base.dispose( disposeManagedResources );
}
public EntityShadowRenderable( Entity parent, HardwareIndexBuffer indexBuffer, VertexData vertexData,
bool createSeperateLightCap, SubEntity subEntity )
: this( parent, indexBuffer, vertexData, createSeperateLightCap, subEntity, false )
{
}
