public void AddVertices <T>(BatchInfo material, VertexMode vertexMode, T[] vertexBuffer, int vertexCount) where T : struct, IVertexData
{
if (vertexCount == 0)
{
return;
}
if (vertexBuffer == null || vertexBuffer.Length == 0)
{
return;
}
if (vertexCount > vertexBuffer.Length)
{
vertexCount = vertexBuffer.Length;
}
if (material == null)
{
material = Material.Checkerboard.Res.InfoDirect;
}
if (this.pickingIndex != 0)
{
ColorRgba clr = new ColorRgba((this.pickingIndex << 8) | 0xFF);
for (int i = 0; i < vertexCount; ++i)
{
vertexBuffer[i].Color = clr;
}
material = new BatchInfo(material);
material.Technique = DrawTechnique.Picking;
if (material.Textures == null)
{
material.MainTexture = Texture.White;
}
}
else if (material.Technique == null || !material.Technique.IsAvailable)
{
material = new BatchInfo(material);
material.Technique = DrawTechnique.Solid;
}
// When rendering without depth writing, use z sorting everywhere - there's no real depth buffering!
bool zSort = !this.DepthWrite || material.Technique.Res.NeedsZSort;
List <IDrawBatch> buffer = zSort ? this.drawBufferZSort : this.drawBuffer;
float zSortIndex = zSort ? DrawBatch <T> .CalcZSortIndex(vertexBuffer, vertexCount) : 0.0f;
if (buffer.Count > 0 && buffer[buffer.Count - 1].CanAppendJIT <T>(
zSort ? 1.0f / this.zSortAccuracy : 0.0f,
zSortIndex,
material,
vertexMode))
{
buffer[buffer.Count - 1].AppendJIT(vertexBuffer, vertexCount);
}
else
{
buffer.Add(new DrawBatch <T>(material, vertexMode, vertexBuffer, vertexCount, zSortIndex));
}
++this.numRawBatches;
}
/// <summary>
/// Adds an already prepared batch to the drawing devices rendering schedule.
/// </summary>
/// <param name="batch"></param>
public void AddBatch(DrawBatch batch)
{
bool sortByDepth = (this.projection == ProjectionMode.Screen) || batch.Material.Technique.Res.NeedsZSort;
RawList <DrawBatch> batchBuffer = sortByDepth ? this.batchBufferBlended : this.batchBufferSolid;
batchBuffer.Add(batch);
++this.numRawBatches;
}
private void AggregateBatches(RawList <SortItem> sortItems, RawList <VertexDrawItem> drawItems, RawList <DrawBatch> batches)
{
VertexDrawItem[] drawData = drawItems.Data;
SortItem[] sortData = sortItems.Data;
SortItem activeSortItem = sortData[0];
VertexDrawItem activeItem = drawData[activeSortItem.DrawItemIndex];
int beginBatchIndex = 0;
// Find sequences of draw items that can be batched together
int count = sortItems.Count;
for (int sortIndex = 1; sortIndex <= count; sortIndex++)
{
// Skip items until we can no longer put the next one into the same batch
if (sortIndex < count)
{
SortItem sortItem = sortData[sortIndex];
if (activeItem.CanShareBatchWith(ref drawData[sortItem.DrawItemIndex]))
{
continue;
}
}
// Create a batch for all previous items
VertexBuffer vertexBuffer = this.vertexBuffers[activeItem.TypeIndex][activeItem.BufferIndex];
DrawBatch batch = new DrawBatch(
vertexBuffer,
this.batchIndexPool.Rent(sortIndex - beginBatchIndex),
activeItem.Mode,
activeItem.Material);
for (int i = beginBatchIndex; i < sortIndex; i++)
{
batch.VertexRanges.Add(new VertexDrawRange
{
Index = drawData[sortData[i].DrawItemIndex].Offset,
Count = drawData[sortData[i].DrawItemIndex].Count
});
}
batches.Add(batch);
// Proceed with the current item being the new sharing reference
if (sortIndex < count)
{
beginBatchIndex = sortIndex;
activeSortItem = sortData[sortIndex];
activeItem = drawData[activeSortItem.DrawItemIndex];
}
}
}
public void Append(DrawBatch <T> other)
{
if (this.vertexCount + other.vertexCount > this.vertices.Length)
{
int newArrSize = MathF.Max(16, this.vertexCount * 2, this.vertexCount + other.vertexCount);
Array.Resize(ref this.vertices, newArrSize);
}
Array.Copy(other.vertices, 0, this.vertices, this.vertexCount, other.vertexCount);
this.vertexCount += other.vertexCount;
if (this.material.Technique.Res.NeedsZSort)
{
CalcZSortIndex();
}
}
public void UploadToVBO(List <IDrawBatch> batches)
{
int vertexCount = 0;
T[] vertexData = null;
if (batches.Count == 1)
{
// Only one batch? Don't bother copying data
DrawBatch <T> b = batches[0] as DrawBatch <T>;
vertexData = b.vertices;
vertexCount = b.vertices.Length;
}
else
{
// Check how many vertices we got
vertexCount = batches.Sum(t => t.VertexCount);
// Allocate a static / shared buffer for uploading vertices
if (uploadBuffer == null)
{
uploadBuffer = new T[Math.Max(vertexCount, 64)];
}
else if (uploadBuffer.Length < vertexCount)
{
Array.Resize(ref uploadBuffer, Math.Max(vertexCount, uploadBuffer.Length * 2));
}
// Collect vertex data in one array
int curVertexPos = 0;
vertexData = uploadBuffer;
for (int i = 0; i < batches.Count; i++)
{
DrawBatch <T> b = batches[i] as DrawBatch <T>;
Array.Copy(b.vertices, 0, vertexData, curVertexPos, b.vertexCount);
curVertexPos += b.vertexCount;
}
}
// Submit vertex data to GPU
this.vertices[0].UploadToVBO(vertexData, vertexCount);
}
public void AddVertices <T>(BatchInfo material, VertexMode vertexMode, T[] vertexBuffer, int vertexCount) where T : struct, IVertexData
{
if (vertexCount == 0)
{
return;
}
if (vertexBuffer == null || vertexBuffer.Length == 0)
{
return;
}
if (vertexCount > vertexBuffer.Length)
{
vertexCount = vertexBuffer.Length;
}
if (material == null)
{
material = Material.Checkerboard.Res.InfoDirect;
}
if (this.pickingIndex != 0)
{
ColorRgba clr = new ColorRgba((this.pickingIndex << 8) | 0xFF);
for (int i = 0; i < vertexCount; ++i)
{
vertexBuffer[i].Color = clr;
}
material = new BatchInfo(material);
material.Technique = DrawTechnique.Picking;
if (material.Textures == null)
{
material.MainTexture = Texture.White;
}
}
else if (material.Technique == null || !material.Technique.IsAvailable)
{
material = new BatchInfo(material);
material.Technique = DrawTechnique.Solid;
}
// When rendering without depth writing, use z sorting everywhere - there's no real depth buffering!
bool zSort = !this.DepthWrite || material.Technique.Res.NeedsZSort;
List <IDrawBatch> buffer = zSort ? this.drawBufferZSort : this.drawBuffer;
float zSortIndex = zSort ? DrawBatch <T> .CalcZSortIndex(vertexBuffer, vertexCount) : 0.0f;
// Determine if we can append the incoming vertices into the previous batch
IDrawBatch prevBatch = buffer.Count > 0 ? buffer[buffer.Count - 1] : null;
if (prevBatch != null &&
// ToDo: Move into CanAppendJIT on next major version step:
// Make sure to not generate batches that will be in the Large Object Heap (>= 85k bytes)
// because this will trigger lots and lots of Gen2 collections over time.
vertexCount + prevBatch.VertexCount < 1024 &&
// Check if the batches do match enough for being merged
prevBatch.CanAppendJIT <T>(
zSort ? 1.0f : 0.0f, // Obsolete as of 2016-06-17, can be replcaed with zSort bool.
zSortIndex,
material,
vertexMode))
{
prevBatch.AppendJIT(vertexBuffer, vertexCount);
}
else
{
buffer.Add(new DrawBatch <T>(material, vertexMode, vertexBuffer, vertexCount, zSortIndex));
}
++this.numRawBatches;
}