internal override uint[] Search(RenderEventArgs arg,
int x, int y,
uint lastVertexId, ZeroIndexRenderer modernRenderer)
{
OneIndexBufferPtr indexBufferPtr = null;
using (var buffer = new OneIndexBuffer(IndexElementType.UInt, DrawMode.Lines, BufferUsage.StaticDraw))
{
buffer.Create(8);
unsafe
{
var array = (uint *)buffer.Header.ToPointer();
array[0] = lastVertexId - 1; array[1] = lastVertexId - 0;
array[2] = lastVertexId - 2; array[3] = lastVertexId - 1;
array[4] = lastVertexId - 3; array[5] = lastVertexId - 2;
array[6] = lastVertexId - 0; array[7] = lastVertexId - 3;
}
indexBufferPtr = buffer.GetBufferPtr() as OneIndexBufferPtr;
}
modernRenderer.Render4InnerPicking(arg, indexBufferPtr);
uint id = ColorCodedPicking.ReadPixel(x, arg.CanvasRect.Height - y - 1);
indexBufferPtr.Dispose();
if (id + 3 == lastVertexId)
{
return(new uint[] { id + 3, id, });
}
else
{
return(new uint[] { id - 1, id, });
}
}
public IndexBufferPtr GetIndexBufferPtr()
{
if (indexBufferPtr == null)
{
using (var buffer = new OneIndexBuffer(IndexElementType.UInt, DrawMode.TriangleStrip, BufferUsage.StaticDraw))
{
buffer.Create(this.SideLength * (this.SideLength - 1) * 2);
unsafe
{
var pointer = (uint *)buffer.Header.ToPointer();
for (int k = 0; k < this.SideLength - 1; k++)
{
for (int i = 0; i < this.SideLength; i++)
{
if (k % 2 == 0)
{
pointer[(i + k * this.SideLength) * 2 + 0] = (uint)(i + (k + 1) * this.SideLength);
pointer[(i + k * this.SideLength) * 2 + 1] = (uint)(i + (k + 0) * this.SideLength);
}
else
{
pointer[(i + k * this.SideLength) * 2 + 0] = (uint)(this.SideLength - 1 - i + (k + 0) * this.SideLength);
pointer[(i + k * this.SideLength) * 2 + 1] = (uint)(this.SideLength - 1 - i + (k + 1) * this.SideLength);
}
}
}
}
indexBufferPtr = buffer.GetBufferPtr();
}
}
return(indexBufferPtr);
}
public unsafe IndexBufferPtr GetIndex()
{
if (this.indexBufferPtr != null)
{
return(this.indexBufferPtr);
}
int vertexCount = (faceCount * 2 + 2) * (this.pipeline.Count - 1);
using (var buffer = new OneIndexBuffer <uint>(DrawMode.QuadStrip, BufferUsage.StaticDraw))
{
buffer.Create(vertexCount + (this.pipeline.Count - 1));
var array = (uint *)buffer.Header.ToPointer();
uint positionIndex = 0;
for (int i = 0; i < buffer.Length; i++)
{
if (i % (faceCount * 2 + 2 + 1) == (faceCount * 2 + 2))
{
array[i] = uint.MaxValue;//分割各个圆柱体
}
else
{
array[i] = positionIndex++;
}
}
this.indexBufferPtr = buffer.GetBufferPtr() as IndexBufferPtr;
}
return(this.indexBufferPtr);
}
public IndexBufferPtr GetIndexBufferPtr()
{
if (this.indexBufferPtr == null)
{
int uCount = GetUCount(interval);
int vCount = GetVCount(interval);
using (var buffer = new OneIndexBuffer(IndexElementType.UInt, DrawMode.LineStrip, BufferUsage.StaticDraw))
{
int count = (uCount + 1) * vCount + (vCount + 1 + 1) * uCount;
buffer.Create(count);
int index = 0;
unsafe
{
var array = (uint *)buffer.Header.ToPointer();
// vertical lines.
for (int i = 0; i < vCount; i++)
{
for (int j = 0; j < uCount; j++)
{
array[index++] = (uint)(i + j * vCount);
}
array[index++] = uint.MaxValue;// primitive restart index.
}
// horizontal lines.
for (int i = 0; i < uCount; i++)
{
for (int j = 0; j < vCount; j++)
{
array[index++] = (uint)(j + i * vCount);
}
array[index++] = (uint)(0 + i * vCount);
array[index++] = uint.MaxValue;// primitive restart index.
}
}
this.indexBufferPtr = buffer.GetBufferPtr();
}
//using (var buffer = new ZeroIndexBuffer(
// DrawMode.Points, 0, uCount * vCount))
//{
// indexBufferPtr = buffer.GetBufferPtr();
//}
}
return(this.indexBufferPtr);
}
public IndexBufferPtr GetIndexBufferPtr()
{
if (indexBufferPtr == null)
{
using (var buffer = new OneIndexBuffer(IndexElementType.UInt, DrawMode.Triangles, BufferUsage.StaticDraw))
{
buffer.Create(3 * 3);
unsafe
{
var array = (uint *)buffer.Header.ToPointer();
array[0] = 0; array[1] = 1; array[2] = 3;
array[3] = 0; array[4] = 3; array[5] = 2;
array[6] = 1; array[7] = 3; array[8] = 2;
}
indexBufferPtr = buffer.GetBufferPtr();
}
}
return(indexBufferPtr);
}
public IndexBufferPtr GetIndexBufferPtr()
{
if (indexBufferPtr == null)
{
using (var buffer = new OneIndexBuffer(IndexElementType.UInt, DrawMode.Triangles, BufferUsage.StaticDraw))
{
buffer.Create(xy_indices.Length);
unsafe
{
var array = (uint *)buffer.Header.ToPointer();
for (int i = 0; i < xy_indices.Length; i++)
{
array[i] = xy_indices[i];
}
}
indexBufferPtr = buffer.GetBufferPtr();
}
}
return(indexBufferPtr);
}
public override IndexBufferPtr GetIndexBufferPtr()
{
if (this.indexBufferPtr == null)
{
using (var buffer = new OneIndexBuffer(IndexElementType.UInt, DrawMode.QuadStrip, BufferUsage.StaticDraw))
{
int dimSize = this.DataSource.DimenSize;
buffer.Create(dimSize * 2 * (Marshal.SizeOf(typeof(HalfHexahedronIndex)) / sizeof(uint)));
unsafe
{
var array = (HalfHexahedronIndex *)buffer.Header.ToPointer();
for (int gridIndex = 0; gridIndex < dimSize; gridIndex++)
{
array[gridIndex * 2].dot0 = (uint)(8 * gridIndex + 6);
array[gridIndex * 2].dot1 = (uint)(8 * gridIndex + 2);
array[gridIndex * 2].dot2 = (uint)(8 * gridIndex + 7);
array[gridIndex * 2].dot3 = (uint)(8 * gridIndex + 3);
array[gridIndex * 2].dot4 = (uint)(8 * gridIndex + 4);
array[gridIndex * 2].dot5 = (uint)(8 * gridIndex + 0);
array[gridIndex * 2].dot6 = (uint)(8 * gridIndex + 5);
array[gridIndex * 2].dot7 = (uint)(8 * gridIndex + 1);
array[gridIndex * 2].restartIndex = uint.MaxValue;
array[gridIndex * 2 + 1].dot0 = (uint)(8 * gridIndex + 3);
array[gridIndex * 2 + 1].dot1 = (uint)(8 * gridIndex + 0);
array[gridIndex * 2 + 1].dot2 = (uint)(8 * gridIndex + 2);
array[gridIndex * 2 + 1].dot3 = (uint)(8 * gridIndex + 1);
array[gridIndex * 2 + 1].dot4 = (uint)(8 * gridIndex + 6);
array[gridIndex * 2 + 1].dot5 = (uint)(8 * gridIndex + 5);
array[gridIndex * 2 + 1].dot6 = (uint)(8 * gridIndex + 7);
array[gridIndex * 2 + 1].dot7 = (uint)(8 * gridIndex + 4);
array[gridIndex * 2 + 1].restartIndex = uint.MaxValue;
}
}
this.indexBufferPtr = buffer.GetBufferPtr();
}
}
return(this.indexBufferPtr);
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public IndexBufferPtr GetIndexBufferPtr()
{
if (indexBufferPtr == null)
{
using (var buffer = new OneIndexBuffer(IndexElementType.UByte, DrawMode.Triangles, BufferUsage.StaticDraw))
{
buffer.Create(TetrahedronModel.index.Length);
unsafe
{
var array = (byte *)buffer.Header.ToPointer();
for (int i = 0; i < TetrahedronModel.index.Length; i++)
{
array[i] = TetrahedronModel.index[i];
}
}
indexBufferPtr = buffer.GetBufferPtr();
}
}
return(indexBufferPtr);
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public IndexBufferPtr GetIndexBufferPtr()
{
if (indexBufferPtr == null)
{
using (var buffer = new OneIndexBuffer(IndexElementType.UShort, DrawMode.Triangles, BufferUsage.StaticDraw))
{
ushort[] faces = model.GetFaces();
buffer.Create(faces.Length);
unsafe
{
var array = (ushort *)buffer.Header.ToPointer();
for (int i = 0; i < faces.Length; i++)
{
array[i] = (ushort)(faces[i] - 1);
}
}
indexBufferPtr = buffer.GetBufferPtr();
}
}
return(indexBufferPtr);
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public IndexBufferPtr GetIndexBufferPtr()
{
if (indexBufferPtr == null)
{
if (model.positions.Length < byte.MaxValue)
{
using (var buffer = new OneIndexBuffer(IndexElementType.UByte, DrawMode.TriangleStrip, BufferUsage.StaticDraw))
{
buffer.Create(model.indexes.Length);
unsafe
{
var indexArray = (byte *)buffer.Header.ToPointer();
for (int i = 0; i < model.indexes.Length; i++)
{
if (model.indexes[i] == uint.MaxValue)
{
indexArray[i] = byte.MaxValue;
}
else
{
indexArray[i] = (byte)model.indexes[i];
}
}
}
indexBufferPtr = buffer.GetBufferPtr();
}
}
else if (model.positions.Length < ushort.MaxValue)
{
using (var buffer = new OneIndexBuffer(IndexElementType.UShort, DrawMode.TriangleStrip, BufferUsage.StaticDraw))
{
buffer.Create(model.indexes.Length);
unsafe
{
var indexArray = (ushort *)buffer.Header.ToPointer();
for (int i = 0; i < model.indexes.Length; i++)
{
if (model.indexes[i] == uint.MaxValue)
{
indexArray[i] = ushort.MaxValue;
}
else
{
indexArray[i] = (ushort)model.indexes[i];
}
}
}
indexBufferPtr = buffer.GetBufferPtr();
}
}
else
{
using (var buffer = new OneIndexBuffer(IndexElementType.UInt, DrawMode.TriangleStrip, BufferUsage.StaticDraw))
{
buffer.Create(model.indexes.Length);
unsafe
{
var indexArray = (uint *)buffer.Header.ToPointer();
for (int i = 0; i < model.indexes.Length; i++)
{
indexArray[i] = model.indexes[i];
}
}
indexBufferPtr = buffer.GetBufferPtr();
}
}
}
return(indexBufferPtr);
}