Axiom.Core.BillboardSet.InjectBillboard C# (CSharp) Method

		internal void InjectBillboard( Billboard bb )
		{
			// Skip if not visible (NB always true if not bounds checking individual billboards)
			if ( !this.IsBillboardVisible( this.currentCamera, bb ) )
			{
				return;
			}

			if ( !this.pointRendering &&
				 ( this.billboardType == BillboardType.OrientedSelf ||
				   this.billboardType == BillboardType.PerpendicularSelf ||
				   ( this.accurateFacing && this.billboardType != BillboardType.PerpendicularCommon ) ) )
			{
				// Have to generate axes & offsets per billboard
				this.GenerateBillboardAxes( ref this.camX, ref this.camY, bb );
			}

			// If they're all the same size or we're point rendering
			if ( this.allDefaultSize || this.pointRendering )
			{
				/* No per-billboard checking, just blast through.
				   Saves us an if clause every billboard which may
				   make a difference.
				*/

				if ( !this.pointRendering &&
					 ( this.billboardType == BillboardType.OrientedSelf ||
					   this.billboardType == BillboardType.PerpendicularSelf ||
					   ( this.accurateFacing && this.billboardType != BillboardType.PerpendicularCommon ) ) )
				{
					this.GenerateVertexOffsets( this.leftOff,
												this.rightOff,
												this.topOff,
												this.bottomOff,
												this.defaultParticleWidth,
												this.defaultParticleHeight,
												ref this.camX,
												ref this.camY,
												this.vOffset );
				}
				this.GenerateVertices( this.vOffset, bb );
			}
			else // not all default size and not point rendering
			{
				Vector3[] vOwnOffset = new Vector3[ 4 ];
				// If it has own dimensions, or self-oriented, gen offsets
				if ( this.billboardType == BillboardType.OrientedSelf ||
					 this.billboardType == BillboardType.PerpendicularSelf ||
					 bb.HasOwnDimensions ||
					 ( this.accurateFacing && this.billboardType != BillboardType.PerpendicularCommon ) )
				{
					// Generate using own dimensions
					this.GenerateVertexOffsets( this.leftOff,
												this.rightOff,
												this.topOff,
												this.bottomOff,
												bb.Width,
												bb.Height,
												ref this.camX,
												ref this.camY,
												vOwnOffset );
					// Create vertex data
					this.GenerateVertices( vOwnOffset, bb );
				}
				else // Use default dimension, already computed before the loop, for faster creation
				{
					this.GenerateVertices( this.vOffset, bb );
				}
			}
			// Increment visibles
			this.numVisibleBillboards++;
		}