public ModelBatchList ComputeBatches(IViewPoint viewPoint, TextureCube skybox)
{
var transparentBatches = new List <ModelRenderBatch>(this.TransparentModels.Count);
var transparentModels = this.SortBackToFront(this.TransparentModels, viewPoint);
var batches = this.ComputeBatches(transparentModels, viewPoint);
for (var i = 0; i < batches.Count; i++)
{
transparentBatches.Add(new ModelRenderBatch(batches[i], viewPoint, skybox));
}
this.OpaqueModelBatchList.Clear();
for (var i = 0; i < this.OpaqueModels.Count; i++)
{
var model = this.OpaqueModels[i];
var bounds = this.Bounds.Get(model.Entity);
if (bounds.IsInView)
{
var pose = this.Poses.Get(model.Entity);
var modelPose = new ModelPose(model, pose);
this.OpaqueModelBatchList.Add(modelPose);
}
}
return(new ModelBatchList(new ModelRenderBatch(this.OpaqueModelBatchList, viewPoint, skybox), transparentBatches));
}
private IReadOnlyList <List <ModelPose> > ComputeBatches(List <AModel> models, IViewPoint viewPoint)
{
var batches = new List <List <ModelPose> >();
var currentBatch = new List <ModelPose>();
var currentBounds = new BoundingRectangle();
for (var i = 0; i < models.Count; i++)
{
var model = models[i];
var bounds = this.Bounds.Get(model.Entity);
var pose = this.Poses.Get(model.Entity);
var modelPose = new ModelPose(model, pose);
var boundingRectangle = BoundingRectangle.CreateFromProjectedBoundingBox(bounds.BoundingBox, viewPoint);
if (currentBatch.Count == 0)
{
currentBounds = boundingRectangle;
currentBatch.Add(modelPose);
}
else if (boundingRectangle.Intersects(currentBounds))
{
batches.Add(currentBatch);
currentBatch = new List <ModelPose> {
modelPose
};
currentBounds = boundingRectangle;
}
else
{
currentBatch.Add(modelPose);
currentBounds = BoundingRectangle.CreateMerged(currentBounds, boundingRectangle);
}
}
if (currentBatch.Count > 0)
{
batches.Add(currentBatch);
}
return(batches);
}