private void ReturnBuffers()
{
if (vertexList != null)
{
BufferPool11.ReturnPositionTextureList(vertexList);
vertexList = null;
}
if (childTriangleList != null)
{
for (int i = 0; i < 4; i++)
{
if (childTriangleList[i] != null)
{
BufferPool11.ReturnTriangleList(childTriangleList[i]);
childTriangleList[i] = null;
}
}
}
}
public override void OnCreateVertexBuffer(VertexBuffer11 vb)
{
bool dem = DemEnabled;
if (!subDivided)
{
if (vertexList == null)
{
InitializeGrids();
}
for (int i = 0; i < 4; i++)
{
int count = subDivisionLevel;
while (count-- > 1)
{
List <Triangle> newList = BufferPool11.GetTriagleList();
foreach (Triangle tri in childTriangleList[i])
{
tri.SubDivide(newList, vertexList);
}
BufferPool11.ReturnTriangleList(childTriangleList[i]);
childTriangleList[i] = newList;
}
}
subDivided = true;
}
//for (int i = 0; i < 4; i++)
//{
// indexBuffer[i] = BufferPool11.GetShortIndexBuffer(childTriangleList[i].Count * 3);
//}
int indexCount = childTriangleList[0].Count * 3;
demIndex = 0;
try
{
// Create a vertex buffer
PositionNormalTexturedX2[] verts = (PositionNormalTexturedX2[])vb.Lock(0, 0); // Lock the buffer (which will return our structs)
int index = 0;
if (dem && level > 1)
{
demArray = new double[17 * 17];
if (backslash)
{
if (backslashYIndex == null)
{
tempBackslashYIndex = new byte[demSize];
tempBackslashXIndex = new byte[demSize];
}
}
else
{
if (slashYIndex == null)
{
tempSlashYIndex = new byte[demSize];
tempSlashXIndex = new byte[demSize];
}
}
}
foreach (PositionTexture vert in vertexList)
{
if (dem)
{
// todo map this with backslash as well
verts[index++] = GetMappedVertex(vert);
}
else
{
verts[index++] = vert.PositionNormalTextured(localCenter, backslash);
}
demIndex++;
}
vb.Unlock();
TriangleCount = childTriangleList[0].Count * 4;
int quarterDivisions = SubDivisions / 2;
int part = 0;
foreach (List <Triangle> triList in childTriangleList)
{
if (GetIndexBuffer(part, 0) == null)
{
short[] indexArray = new short[indexCount];
int indexer = 0;
//dumpMutex.WaitOne();
//System.Diagnostics.Debug.WriteLine("start Index dump:" + part.ToString() + ";" + (backslash ? "Backslash" : "Slash"));
foreach (Triangle tri in triList)
{
indexArray[indexer++] = (short)tri.A;
indexArray[indexer++] = (short)tri.B;
indexArray[indexer++] = (short)tri.C;
//WriteDebugVertex(tri.A);
//WriteDebugVertex(tri.B);
//WriteDebugVertex(tri.C);
}
//System.Diagnostics.Debug.WriteLine("End Index dump");
//dumpMutex.ReleaseMutex();
ProcessIndexBuffer(indexArray, part);
}
part++;
}
if (backslash)
{
if (tempBackslashXIndex != null)
{
backslashXIndex = tempBackslashXIndex;
backslashYIndex = tempBackslashYIndex;
tempBackslashXIndex = null;
tempBackslashYIndex = null;
}
}
else
{
if (tempSlashYIndex != null)
{
slashXIndex = tempSlashXIndex;
slashYIndex = tempSlashYIndex;
tempSlashYIndex = null;
tempSlashXIndex = null;
}
}
}
catch
{
}
ReturnBuffers();
}