public void UpdateSortOrder()
{
int maxMat = MyRenderVoxelMaterials.GetMaterialsCount() + 1;
int matCount = MyRenderVoxelMaterials.GetMaterialsCount() + 2;
int mats0 = (int)Material0;
int mats1 = (int)(Material1.HasValue ? (int)Material1.Value : maxMat);
int mats2 = (int)(Material2.HasValue ? (int)Material2.Value : maxMat);
// Important is type and material/texture. Order of type is defined by enum values
SortOrder = ((int)Type * matCount * matCount * matCount) + mats2 * matCount * matCount + mats1 * matCount + mats0;
MaterialId = mats2 * matCount * matCount + mats1 * matCount + mats0;
}
private unsafe void AddBatch(MyClipmapCellBatch batch)
{
// This will just preload textures used by this material - so they are ready in memory when first time drawn
MyRenderVoxelMaterials.Get((byte)batch.Material0).GetTextures();
MyRenderVoxelBatch newBatch = new MyRenderVoxelBatch();
string debugName = "VoxelBatchSingle";
newBatch.Type = MyRenderVoxelBatchType.SINGLE_MATERIAL;
newBatch.Lod = m_metadata.Cell.Lod;
newBatch.Material0 = (byte)batch.Material0;
newBatch.Material1 = batch.Material1 == -1 ? (byte?)null : (byte)batch.Material1;
newBatch.Material2 = batch.Material2 == -1 ? (byte?)null : (byte)batch.Material2;
if (newBatch.Material1 != null || newBatch.Material2 != null)
{
newBatch.Type = MyRenderVoxelBatchType.MULTI_MATERIAL;
debugName = "VoxelBatchMulti";
}
// Vertex buffer
int vbSize = sizeof(MyVertexFormatVoxelSingleData) * batch.Vertices.Length;
newBatch.VertexCount = batch.Vertices.Length;
// When Usage.Dynamic was not there, it crashed on nVidia cards
newBatch.VertexBuffer = new VertexBuffer(MyRender.GraphicsDevice, vbSize, Usage.WriteOnly | Usage.Dynamic, VertexFormat.None, Pool.Default);
newBatch.VertexBuffer.SetData(batch.Vertices, LockFlags.Discard);
newBatch.VertexBuffer.Tag = newBatch;
newBatch.VertexBuffer.DebugName = debugName;
MyPerformanceCounter.PerAppLifetime.VoxelVertexBuffersSize += vbSize;
// Index buffer
int ibSize = sizeof(short) * batch.Indices.Length;
newBatch.IndexCount = batch.Indices.Length;
// When Usage.Dynamic was not there, it crashed on nVidia cards
newBatch.IndexBuffer = new IndexBuffer(MyRender.GraphicsDevice, ibSize, Usage.WriteOnly | Usage.Dynamic, Pool.Default, true);
newBatch.IndexBuffer.SetData(batch.Indices, LockFlags.Discard);
newBatch.IndexBuffer.DebugName = debugName;
MyPerformanceCounter.PerAppLifetime.VoxelIndexBuffersSize += ibSize;
newBatch.UpdateSortOrder();
m_batches.Add(newBatch);
}