internal override uint Search(RenderEventArgs arg,
int x, int y,
uint lastVertexId, ZeroIndexRenderer modernRenderer)
{
OneIndexBufferPtr indexBufferPtr = null;
using (var buffer = new OneIndexBuffer<uint>(DrawMode.Points, BufferUsage.StaticDraw))
{
buffer.Alloc(4);
unsafe
{
var array = (uint*)buffer.Header.ToPointer();
array[0] = lastVertexId - 0;
array[1] = lastVertexId - 1;
array[2] = lastVertexId - 2;
array[3] = lastVertexId - 3;
}
indexBufferPtr = buffer.GetBufferPtr() as OneIndexBufferPtr;
}
modernRenderer.Render4InnerPicking(arg, indexBufferPtr);
uint id = ColorCodedPicking.ReadPixel(x, y, arg.CanvasRect.Height);
indexBufferPtr.Dispose();
if (lastVertexId - 3 <= id && id <= lastVertexId - 0)
{ return id; }
else
{ throw new Exception("This should not happen!"); }
}
internal override uint Search(RenderEventArgs arg,
int x, int y,
RecognizedPrimitiveIndex lastIndexId,
OneIndexRenderer modernRenderer)
{
List<uint> indexList = lastIndexId.IndexIdList;
if (indexList.Count < 3) { throw new ArgumentException(); }
OneIndexBufferPtr indexBufferPtr = null;
using (var buffer = new OneIndexBuffer<uint>(DrawMode.Points, BufferUsage.StaticDraw))
{
buffer.Alloc(indexList.Count);
unsafe
{
var array = (uint*)buffer.Header.ToPointer();
for (int i = 0; i < indexList.Count; i++)
{
array[i] = indexList[i];
}
}
indexBufferPtr = buffer.GetBufferPtr() as OneIndexBufferPtr;
}
modernRenderer.Render4InnerPicking(arg, indexBufferPtr);
uint id = ColorCodedPicking.ReadPixel(x, y, arg.CanvasRect.Height);
indexBufferPtr.Dispose();
if (id != uint.MaxValue)
{ return id; }
else
{ throw new Exception("This should not happen!"); }
}
internal override uint[] Search(RenderEventArg arg,
int x, int y,
uint lastVertexId, ZeroIndexRenderer modernRenderer)
{
OneIndexBufferPtr indexBufferPtr = null;
using (var buffer = new OneIndexBuffer<uint>(DrawMode.Lines, BufferUsage.StaticDraw))
{
buffer.Alloc(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, y, arg.CanvasRect.Height);
indexBufferPtr.Dispose();
if (id + 3 == lastVertexId)
{ return new uint[] { id + 3, id, }; }
else
{ return new uint[] { id - 1, id, }; }
}
internal override uint[] Search(RenderEventArg arg,
int x, int y,
RecognizedPrimitiveIndex lastIndexId,
OneIndexRenderer modernRenderer)
{
List<uint> indexList = lastIndexId.IndexIdList;
if (indexList.Count < 3) { throw new ArgumentException(); }
OneIndexBufferPtr indexBufferPtr = null;
using (var buffer = new OneIndexBuffer<uint>(DrawMode.LineLoop, BufferUsage.StaticDraw))
{
buffer.Alloc(indexList.Count);
unsafe
{
var array = (uint*)buffer.Header.ToPointer();
for (int i = 0; i < indexList.Count; i++)
{
array[i] = indexList[i];
}
}
indexBufferPtr = buffer.GetBufferPtr() as OneIndexBufferPtr;
}
modernRenderer.Render4InnerPicking(arg, indexBufferPtr);
uint id = ColorCodedPicking.ReadPixel(x, y, arg.CanvasRect.Height);
indexBufferPtr.Dispose();
if (id == indexList[0])
{ return new uint[] { indexList[indexList.Count - 1], id, }; }
else
{
uint[] result = null;
for (int i = 1; i < indexList.Count; i++)
{
if (id == indexList[i])
{
result = new uint[] { indexList[i - 1], indexList[i], };
break;
}
}
if (result != null)
{ return result; }
else
{ throw new Exception("This should not happen!"); }
}
}
public IndexBufferPtr GetIndex()
{
using (var buffer = new OneIndexBuffer <uint>(DrawMode.Triangles, BufferUsage.StaticDraw))
{
buffer.Alloc(this.index.Length);
unsafe
{
uint *array = (uint *)buffer.FirstElement();
for (int i = 0; i < this.index.Length; i++)
{
array[i] = this.index[i];
}
}
return(buffer.GetBufferPtr() as IndexBufferPtr);
}
}
public IndexBufferPtr GetIndex()
{
using (var indexBuffer = new OneIndexBuffer <uint>(DrawMode.TriangleStrip, BufferUsage.StaticDraw))
{
indexBuffer.Alloc(indexes.Length);
unsafe
{
uint *indexArray = (uint *)indexBuffer.FirstElement();
for (int i = 0; i < indexes.Length; i++)
{
indexArray[i] = indexes[i];
}
}
return(indexBuffer.GetBufferPtr() as IndexBufferPtr);
}
}
public IndexBufferPtr GetIndex()
{
using (var buffer = new OneIndexBuffer <uint>(
DrawMode.LineStrip, BufferUsage.StaticDraw))
{
buffer.Alloc(model.Indexes.Length);
unsafe
{
var array = (uint *)buffer.FirstElement();
for (int i = 0; i < model.Indexes.Length; i++)
{
array[i] = model.Indexes[i];
}
}
return(buffer.GetBufferPtr() as IndexBufferPtr);
}
}
internal override uint[] Search(RenderEventArgs arg,
int x, int y,
RecognizedPrimitiveIndex lastIndexId,
OneIndexRenderer modernRenderer)
{
List<uint> indexList = lastIndexId.IndexIdList;
if (indexList.Count != 3) { throw new ArgumentException(); }
//if (indexList[0] == indexList[1]) { return new uint[] { indexList[0], indexList[2], }; }
//else if (indexList[0] == indexList[2]) { return new uint[] { indexList[0], indexList[1], }; }
//else if (indexList[1] == indexList[2]) { return new uint[] { indexList[1], indexList[0], }; }
OneIndexBufferPtr indexBufferPtr = null;
using (var buffer = new OneIndexBuffer<uint>(DrawMode.Lines, BufferUsage.StaticDraw))
{
buffer.Alloc(6);
unsafe
{
var array = (uint*)buffer.Header.ToPointer();
array[0] = indexList[0]; array[1] = indexList[1];
array[2] = indexList[1]; array[3] = indexList[2];
array[4] = indexList[2]; array[5] = indexList[0];
}
indexBufferPtr = buffer.GetBufferPtr() as OneIndexBufferPtr;
}
modernRenderer.Render4InnerPicking(arg, indexBufferPtr);
uint id = ColorCodedPicking.ReadPixel(x, y, arg.CanvasRect.Height);
indexBufferPtr.Dispose();
if (id == indexList[1])
{ return new uint[] { indexList[0], indexList[1], }; }
else if (id == indexList[2])
{ return new uint[] { indexList[1], indexList[2], }; }
else if (id == indexList[0])
{ return new uint[] { indexList[2], indexList[0], }; }
else
{ throw new Exception("This should not happen!"); }
}
public IndexBufferPtr GetIndex()
{
if (indexBufferPtr == null)
{
using (var buffer = new OneIndexBuffer <uint>(DrawMode.Triangles, BufferUsage.StaticDraw))
{
buffer.Alloc(indices.Length);
unsafe
{
var array = (uint *)buffer.Header.ToPointer();
for (int i = 0; i < indices.Length; i++)
{
array[i] = indices[i];
}
}
indexBufferPtr = buffer.GetBufferPtr() as IndexBufferPtr;
}
}
return(indexBufferPtr);
}
public IndexBufferPtr GetIndexBufferRenderer()
{
using (var buffer = new OneIndexBuffer <uint>(DrawMode.Triangles, BufferUsage.StaticDraw))
{
buffer.Alloc(faces.Count * 3);
unsafe
{
uint *array = (uint *)buffer.FirstElement();
for (int i = 0; i < faces.Count; i++)
{
//TODO: 用ushort类型的IndexBuffer就会引发系统错误，为什么？
//array[i * 3 + 0] = (ushort)(faces[i].Item1 - 1);
//array[i * 3 + 1] = (ushort)(faces[i].Item2 - 1);
//array[i * 3 + 2] = (ushort)(faces[i].Item3 - 1);
array[i * 3 + 0] = (uint)(faces[i].Item1 - 1);
array[i * 3 + 1] = (uint)(faces[i].Item2 - 1);
array[i * 3 + 2] = (uint)(faces[i].Item3 - 1);
}
}
return(buffer.GetBufferPtr() as IndexBufferPointerBase);
}
}
public IndexBufferPtr GetIndex()
{
if (indexBufferPtr == null)
{
if (model.positions.Length < byte.MaxValue)
{
using (var buffer = new OneIndexBuffer<byte>(DrawMode.TriangleStrip, BufferUsage.StaticDraw))
{
buffer.Alloc(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() as IndexBufferPtr;
}
}
else if (model.positions.Length < ushort.MaxValue)
{
using (var buffer = new OneIndexBuffer<ushort>(DrawMode.TriangleStrip, BufferUsage.StaticDraw))
{
buffer.Alloc(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() as IndexBufferPtr;
}
}
else
{
using (var buffer = new OneIndexBuffer<uint>(DrawMode.TriangleStrip, BufferUsage.StaticDraw))
{
buffer.Alloc(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() as IndexBufferPtr;
}
}
}
return indexBufferPtr;
}
public IndexBufferPtr GetIndex()
{
if (indexBufferPtr == null)
{
if (model.positions.Length < byte.MaxValue)
{
using (var buffer = new OneIndexBuffer <byte>(DrawMode.TriangleStrip, BufferUsage.StaticDraw))
{
buffer.Alloc(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() as IndexBufferPtr;
}
}
else if (model.positions.Length < ushort.MaxValue)
{
using (var buffer = new OneIndexBuffer <ushort>(DrawMode.TriangleStrip, BufferUsage.StaticDraw))
{
buffer.Alloc(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() as IndexBufferPtr;
}
}
else
{
using (var buffer = new OneIndexBuffer <uint>(DrawMode.TriangleStrip, BufferUsage.StaticDraw))
{
buffer.Alloc(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() as IndexBufferPtr;
}
}
}
return(indexBufferPtr);
}
/// <summary>
/// 将共享点前移，然后重新渲染、拾取
/// </summary>
/// <param name="recognizedPrimitiveIndex0"></param>
/// <param name="recognizedPrimitiveIndex1"></param>
/// <param name="drawMode"></param>
/// <param name="oneIndexBufferPtr"></param>
/// <param name="lastIndex0"></param>
/// <param name="lastIndex1"></param>
private void AssembleIndexBuffer(
RecognizedPrimitiveIndex recognizedPrimitiveIndex0,
RecognizedPrimitiveIndex recognizedPrimitiveIndex1,
DrawMode drawMode,
out OneIndexBufferPtr oneIndexBufferPtr,
out uint lastIndex0, out uint lastIndex1)
{
List<uint> indexArray = ArrangeIndexes(
recognizedPrimitiveIndex0, recognizedPrimitiveIndex1, drawMode,
out lastIndex0, out lastIndex1);
if (indexArray.Count !=
recognizedPrimitiveIndex0.IndexIdList.Count
+ 1
+ recognizedPrimitiveIndex1.IndexIdList.Count)
{ throw new Exception(); }
using (var indexBuffer = new OneIndexBuffer<uint>(drawMode, BufferUsage.StaticDraw))
{
indexBuffer.Alloc(
recognizedPrimitiveIndex0.IndexIdList.Count
+ 1
+ recognizedPrimitiveIndex1.IndexIdList.Count);
unsafe
{
var array = (uint*)indexBuffer.Header.ToPointer();
for (int i = 0; i < indexArray.Count; i++)
{
array[i] = indexArray[i];
}
}
oneIndexBufferPtr = indexBuffer.GetBufferPtr() as OneIndexBufferPtr;
}
}