public override void Remove(ModelDisplayObject displayObject)
{
ModelDisplayObjectBatch batch = displayObject.BatchInformation.Batch;
batch.Remove(displayObject, this);
//If it's an empty batch, just throw it away.
if (batch.DisplayObjects.Count == 0)
{
batches.Remove(batch);
}
}
/// <summary>
/// Collects the local space vertex data of the model.
/// </summary>
/// <param name="vertices">List of vertices to be filled with the model vertices.</param>
/// <param name="indices">List of indices to be filled with the model indices.</param>
/// <param name="batch">Batch that the display object is being added to.</param>
/// <param name="baseVertexBufferIndex">Index in the batch's vertex buffer where this display object's vertices start.</param>
/// <param name="baseIndexBufferIndex">Index in the batch's index buffer where this display object's vertices start.</param>
/// <param name="batchListIndex">Index in the batch's display object list where this display object will be inserted.</param>
public void GetVertexData(List <VertexPositionNormalTexture> vertices, List <ushort> indices,
ModelDisplayObjectBatch batch, ushort baseVertexBufferIndex, int baseIndexBufferIndex, int batchListIndex)
{
BatchInformation.Batch = batch;
BatchInformation.BaseVertexBufferIndex = baseVertexBufferIndex;
BatchInformation.BaseIndexBufferIndex = baseIndexBufferIndex;
BatchInformation.BatchListIndex = batchListIndex;
GetMeshData(vertices, indices);
//Modify the indices.
for (int i = 0; i < indices.Count; i++)
{
indices[i] += baseVertexBufferIndex;
}
BatchInformation.VertexCount = vertices.Count;
BatchInformation.IndexCount = indices.Count;
}
public override void Add(ModelDisplayObject displayObject)
{
foreach (ModelDisplayObjectBatch batch in batches)
{
if (batch.Add(displayObject, this))
{
return;
}
}
//If we made it here, that means there was no batch that could handle the display object.
//This could be because the batches were full, or it could be that this
//display object is just really large (like a terrain) and violated the
//primitive count limit.
//So throw the object in a new batch.
//This will also allow a display object that is too large (like a 512x512 terrain) to be added to a batch,
//so long as it is alone.
var batchToAdd = new ModelDisplayObjectBatch(Game.GraphicsDevice);
batches.Add(batchToAdd);
batchToAdd.Add(displayObject, this);
}