/// <summary>
/// Draws a geometry batch
/// </summary>
/// <param name="batch">Bztch of geometric shapes</param>
internal void DrawInstancedGeometry(InstanceBatch batch)
{
if (batch.InstanceCount == 0)
return;
RenderingInfo renderInfo = batch.RenderInfo;
_graphicDevice.SetVertexBuffers(renderInfo.VertexData.VertexBindings);
IndexData indexData = renderInfo.IndexData;
_graphicDevice.Indices = indexData.HardwareBuffer;
_graphicDevice.DrawInstancedPrimitives(renderInfo.PrimitiveType, 0, 0, renderInfo.VertexCount,
indexData.StartIndex, renderInfo.PrimitiveCount, batch.InstanceCount);
UnsetBuffers();
int instanceCount = batch.InstanceCount;
FrameDetail.AddDrawCall((uint)(renderInfo.VertexCount * instanceCount), (uint)(renderInfo.PrimitiveCount * instanceCount),
(uint)instanceCount);
}
/// <summary>
/// Get an InstanceBatch
/// </summary>
/// <param name="id">Id of the batch</param>
/// <param name="queueId">Queue Id</param>
/// <returns>Return an InstanceBatch instance</returns>
private InstanceBatch GetInstanceBatch(uint id, int queueId)
{
Dictionary<uint, InstanceBatch> map = _batchByQueue[queueId] ?? AddNewMap(queueId);
InstanceBatch batch;
map.TryGetValue(id, out batch);
if (batch != null) return batch;
batch = new InstanceBatch(_owner.GraphicsDevice, id, queueId);
map.Add(id, batch);
_batchs.Add(batch);
return batch;
}
