public void Add(T v)
{
GLWrapper.SetActiveBatch(this);
if (currentBufferIndex < VertexBuffers.Count && currentVertexIndex >= currentVertexBuffer.Size)
{
Draw();
FrameStatistics.Increment(StatisticsCounterType.VBufOverflow);
}
// currentIndex will change after Draw() above, so this cannot be in an else-condition
while (currentBufferIndex >= VertexBuffers.Count)
{
VertexBuffers.Add(CreateVertexBuffer());
}
if (currentVertexBuffer.SetVertex(currentVertexIndex, v))
{
if (changeBeginIndex == -1)
{
changeBeginIndex = currentVertexIndex;
}
changeEndIndex = currentVertexIndex + 1;
}
++currentVertexIndex;
}
/// <summary>
/// Adds a vertex to this <see cref="VertexBatch{T}"/>.
/// </summary>
/// <param name="v">The vertex to add.</param>
public void Add(T v)
{
GLWrapper.SetActiveBatch(this);
while (currentIndex >= VertexBuffers.Count)
{
VertexBuffers.Add(CreateVertexBuffer());
}
VertexBuffer <T> vertexBuffer = currentVertexBuffer;
if (!vertexBuffer.Vertices[currentVertex].Equals(v))
{
if (changeBeginIndex == -1)
{
changeBeginIndex = currentVertex;
}
changeEndIndex = currentVertex + 1;
}
vertexBuffer.Vertices[currentVertex] = v;
++currentVertex;
if (currentVertex >= vertexBuffer.Vertices.Length)
{
Draw();
FrameStatistics.Increment(StatisticsCounterType.VBufOverflow);
lastVertex = currentVertex = 0;
}
}
public void Draw()
{
if (currentVertex == lastVertex)
{
return;
}
GLWrapper.SetActiveBatch(this);
VertexBuffer <T> vertexBuffer = CurrentVertexBuffer;
if (changeBeginIndex >= 0)
{
vertexBuffer.UpdateRange(changeBeginIndex, changeEndIndex);
}
vertexBuffer.DrawRange(lastVertex, currentVertex);
// When using multiple buffers we advance to the next one with every draw to prevent contention on the same buffer with future vertex updates.
currentVertexBuffer = (currentVertexBuffer + 1) % fixedBufferAmount;
currentVertex = 0;
lastVertex = currentVertex;
changeBeginIndex = -1;
}
