//增加读取纹理坐标
private unsafe uint ReadVertexData(uint vertexOffset, VertexData vertexData)
{
VertexElement posElem = vertexData.vertexDeclaration.FindElementBySemantic(VertexElementSemantic.VES_POSITION);
HardwareVertexBufferSharedPtr vertexBuffer = vertexData.vertexBufferBinding.GetBuffer(posElem.Source);
byte * vertexMemory = (byte *)vertexBuffer.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY);
float *pElem;
bool needrecomputeVertex = false;
if (this._quaoffset != Quaternion.IDENTITY || this._posoffset != Vector3.ZERO)
{
needrecomputeVertex = true;
}
//texture
if (_readTextureCoordinate)
{
ReadTextureCoordData(vertexOffset, vertexMemory, vertexBuffer.VertexSize, vertexData);
}
if (needrecomputeVertex)
{
for (uint i = 0; i < vertexData.vertexCount; i++)
{
posElem.BaseVertexPointerToElement(vertexMemory, &pElem);
Vector3 point = new Vector3(pElem[0], pElem[1], pElem[2]);
// vertices[current_offset + j] = (orientation * (pt * scale)) + position;
_vertices[vertexOffset] = GetVextexTrans(point, this._quaoffset, this._scale, this._posoffset); //point * this.scale;
vertexMemory += vertexBuffer.VertexSize;
vertexOffset++;
}
}
else
{
for (uint i = 0; i < vertexData.vertexCount; i++)
{
posElem.BaseVertexPointerToElement(vertexMemory, &pElem);
Vector3 point = new Vector3(pElem[0], pElem[1], pElem[2]);
_vertices[vertexOffset] = point * this._scale;
vertexMemory += vertexBuffer.VertexSize;
vertexOffset++;
}
}
vertexBuffer.Unlock();
// SGD ：2013/6/8 13:43:51
// 说明：销毁指针引用 防止.NET回收
vertexBuffer.Dispose();
return(vertexOffset);
}
private unsafe uint ReadVertexData(uint vertexOffset, VertexData vertexData)
{
VertexElement posElem = vertexData.vertexDeclaration.FindElementBySemantic(VertexElementSemantic.VES_POSITION);
HardwareVertexBufferSharedPtr vertexBuffer = vertexData.vertexBufferBinding.GetBuffer(posElem.Source);
byte * vertexMemory = (byte *)vertexBuffer.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY);
float *pElem;
for (uint i = 0; i < vertexData.vertexCount; i++)
{
posElem.BaseVertexPointerToElement(vertexMemory, &pElem);
Vector3 point = new Vector3(pElem[0], pElem[1], pElem[2]);
vertices[vertexOffset] = point * this.scale;
vertexMemory += vertexBuffer.VertexSize;
vertexOffset++;
}
vertexBuffer.Unlock();
return(vertexOffset);
}
// SGD ：2013/6/18 15:02:51
// 说明：顶点纹理坐标
private unsafe void ReadTextureCoordData(uint vertexOffset, byte *vertexBuffer_Lock, uint vertexBuffer_VertexSize, VertexData vertexData)
{
VertexElement texElem = vertexData.vertexDeclaration.FindElementBySemantic(VertexElementSemantic.VES_TEXTURE_COORDINATES);
float * tReal;
if (texElem == null)
{
for (uint i = 0; i < vertexData.vertexCount; i++)
{
this._textureCroodnitas[vertexOffset + i] = new Vector2(0f, 0f);
}
}
else
{
//byte* vextex = vertexBuffer_Lock;
//for (uint i = 0; i < vertexData.vertexCount; i++) {
// texElem.BaseVertexPointerToElement(vextex, &tReal);
// this._textureCroodnitas[vertexOffset + i] = new Vector2(tReal[0], tReal[1]);
// vextex += vertexBuffer_VertexSize;
//}
//读取纹理坐标修正 2013/12/18
VertexData vertex_data = vertexData;
HardwareVertexBufferSharedPtr vbufPtr_tex = vertex_data.vertexBufferBinding.GetBuffer(texElem.Source);
byte *vertex_tex = (byte *)vbufPtr_tex.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY);
for (uint i = 0; i < vertex_data.vertexCount; ++i, /*vertex += vbufPtr.VertexSize,*/ vertex_tex += vbufPtr_tex.VertexSize)
{
//posElem.BaseVertexPointerToElement(vertex, &pReal);
texElem.BaseVertexPointerToElement(vertex_tex, &tReal);
this._textureCroodnitas[vertexOffset + i] = new Vector2(tReal[0], tReal[1]);
vertex_tex += vertexBuffer_VertexSize;
//Vector3 pt = new Vector3(pReal[0], pReal[1], pReal[2]);
//vertices[current_offset + j] = (orientation * (pt * scale)) + position;
//tex_Cors[current_offset + j] = new Vector2(tReal[0], tReal[1]);
}
vbufPtr_tex.Unlock();
vbufPtr_tex.Dispose();
}
}
/**************** New Functions Begin ***************/
/// <summary>
/// Generate navmesh by entity
/// </summary>
/// <param name="ent">Ogre Entity</param>
/// <returns>Navmesh</returns>
public static Navmesh LoadNavmesh(Entity ent)
{
bool addedSharedVertex = false;
vertices.Clear();
faces.Clear();
MeshPtr mesh = ent.GetMesh();
Mesh.SubMeshIterator subIterator = mesh.GetSubMeshIterator();
uint vertexNum = 0;
uint vertexOffset = mesh.sharedVertexData.vertexStart;
MyVector3 <float>[] verticeArray = new MyVector3 <float> [vertexNum];
VertexElement posElem = mesh.sharedVertexData.vertexDeclaration.FindElementBySemantic(VertexElementSemantic.VES_POSITION);
HardwareVertexBufferSharedPtr vertexBuffer = mesh.sharedVertexData.vertexBufferBinding.GetBuffer(posElem.Source);
while (subIterator.MoveNext())
{
SubMesh subMesh = subIterator.Current;
VertexData vertexData = subMesh.useSharedVertices ? mesh.sharedVertexData : subMesh.vertexData;
HardwareIndexBufferSharedPtr indexBuffer = subMesh.indexData.indexBuffer;
HardwareIndexBuffer.IndexType indexType = indexBuffer.Type;
uint indexCount = subMesh.indexData.indexCount;
uint trisNum = indexCount / 3;
uint[] indcies = new uint[indexCount];
uint indexOffset = subMesh.indexData.indexStart;
if (subMesh.useSharedVertices)
{
if (!addedSharedVertex)
{
vertexNum += mesh.sharedVertexData.vertexCount;
addedSharedVertex = true;
}
}
else
{
vertexNum += subMesh.vertexData.vertexCount;
}
unsafe
{
uint * pLong = (uint *)(indexBuffer.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY));
ushort *pShort = (ushort *)pLong;
for (int i = 0; i < indexCount; i++)
{
if (indexType == HardwareIndexBuffer.IndexType.IT_32BIT)
{
indcies[indexOffset] = pLong[i] + vertexNum;
}
else
{
indcies[indexOffset] = pShort[i] + vertexNum;
}
indexOffset++;
}
}
int indexLength = indcies.Length / 3;
for (int i = 0; i < indexLength; i++)
{
faces.Add(new MyVector3 <ushort>(
(ushort)indcies[i * 3 + 0],
(ushort)indcies[i * 3 + 1],
(ushort)indcies[i * 3 + 2]
));
}
indexBuffer.Unlock();
if (subMesh.vertexData != null)
{
vertexNum = subMesh.vertexData.vertexCount;
vertexOffset = subMesh.vertexData.vertexStart;
verticeArray = new MyVector3 <float> [vertexNum];
posElem = subMesh.vertexData.vertexDeclaration.FindElementBySemantic(VertexElementSemantic.VES_POSITION);
vertexBuffer = subMesh.vertexData.vertexBufferBinding.GetBuffer(posElem.Source);
unsafe
{
byte * vertexMemory = (byte *)vertexBuffer.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY);
float *pVertexBuffer;
for (int i = 0; i < vertexNum; i++)
{
posElem.BaseVertexPointerToElement(vertexMemory, &pVertexBuffer);
verticeArray[vertexOffset] = (new MyVector3 <float>(
pVertexBuffer[0],
pVertexBuffer[1],
pVertexBuffer[2]
));
vertexMemory += vertexBuffer.VertexSize;
vertexOffset++;
}
}
for (int i = 0; i < verticeArray.Length; i++)
{
vertices.Add(verticeArray[i]);
}
vertexBuffer.Unlock();
}
}
vertexNum = mesh.sharedVertexData.vertexCount;
vertexOffset = mesh.sharedVertexData.vertexStart;
verticeArray = new MyVector3 <float> [vertexNum];
posElem = mesh.sharedVertexData.vertexDeclaration.FindElementBySemantic(VertexElementSemantic.VES_POSITION);
vertexBuffer = mesh.sharedVertexData.vertexBufferBinding.GetBuffer(posElem.Source);
unsafe
{
byte * vertexMemory = (byte *)vertexBuffer.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY);
float *pVertexBuffer;
for (int i = 0; i < vertexNum; i++)
{
posElem.BaseVertexPointerToElement(vertexMemory, &pVertexBuffer);
verticeArray[vertexOffset] = (new MyVector3 <float>(
pVertexBuffer[0],
pVertexBuffer[1],
pVertexBuffer[2]
));
vertexMemory += vertexBuffer.VertexSize;
vertexOffset++;
}
}
for (int i = 0; i < verticeArray.Length; i++)
{
vertices.Add(verticeArray[i]);
}
vertexBuffer.Unlock();
return(GenerateNavmesh());
}
// Get the mesh information for the given mesh.
// Code found on this forum link: http://www.ogre3d.org/wiki/index.php/RetrieveVertexData
private static unsafe void GetMeshInformation(MeshPtr mesh, out uint vertex_count, out Vector3[] vertices, out uint index_count, out ulong[] indices, Vector3 position, Quaternion orient, Vector3 scale)
{
bool added_shared = false;
uint current_offset = 0;
uint shared_offset = 0;
uint next_offset = 0;
uint index_offset = 0;
vertex_count = index_count = 0;
// Calculate how many vertices and indices we're going to need
for (ushort i = 0; i < mesh.NumSubMeshes; ++i)
{
SubMesh submesh = mesh.GetSubMesh(i);
// We only need to add the shared vertices once
if (submesh.useSharedVertices)
{
if (!added_shared)
{
vertex_count += mesh.sharedVertexData.vertexCount;
added_shared = true;
}
}
else
{
vertex_count += submesh.vertexData.vertexCount;
}
// Add the indices
index_count += submesh.indexData.indexCount;
}
// Allocate space for the vertices and indices
vertices = new Vector3[vertex_count];
indices = new ulong[index_count];
added_shared = false;
// Run through the submeshes again, adding the data into the arrays
for (ushort i = 0; i < mesh.NumSubMeshes; ++i)
{
SubMesh submesh = mesh.GetSubMesh(i);
VertexData vertex_data = submesh.useSharedVertices ? mesh.sharedVertexData : submesh.vertexData;
if ((!submesh.useSharedVertices) || (submesh.useSharedVertices && !added_shared))
{
if (submesh.useSharedVertices)
{
added_shared = true;
shared_offset = current_offset;
}
VertexElement posElem = vertex_data.vertexDeclaration.FindElementBySemantic(VertexElementSemantic.VES_POSITION);
HardwareVertexBufferSharedPtr vbuf = vertex_data.vertexBufferBinding.GetBuffer(posElem.Source);
byte *vertex = (byte *)vbuf.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY);
// There is _no_ baseVertexPointerToElement() which takes an Ogre::Real or a double
// as second argument. So make it float, to avoid trouble when Ogre::Real will
// be comiled/typedefed as double:
// Ogre::Real* pReal;
float *preal;
for (uint j = 0; j < vertex_data.vertexCount; ++j, vertex += vbuf.VertexSize)
{
posElem.BaseVertexPointerToElement(vertex, &preal);
Vector3 pt = new Vector3(preal[0], preal[1], preal[2]);
vertices[current_offset + j] = (orient * (pt * scale)) + position;
}
vbuf.Unlock();
next_offset += vertex_data.vertexCount;
}
IndexData index_data = submesh.indexData;
uint numTris = index_data.indexCount / 3;
HardwareIndexBufferSharedPtr ibuf = index_data.indexBuffer;
bool use32bitindexes = (ibuf.Type == HardwareIndexBuffer.IndexType.IT_32BIT);
ulong * plong = (ulong *)ibuf.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY);
ushort *pshort = (ushort *)plong;
uint offset = submesh.useSharedVertices ? shared_offset : current_offset;
if (use32bitindexes)
{
for (uint k = 0; k < numTris * 3; ++k)
{
indices[index_offset++] = (ulong)plong[k] + (ulong)offset;
}
}
else
{
for (uint k = 0; k < numTris * 3; ++k)
{
indices[index_offset++] = pshort[k] + (ulong)offset;
}
}
ibuf.Unlock();
current_offset = next_offset;
}
}
// Get the mesh information for the given mesh.
// Code found on this forum link: http://www.ogre3d.org/wiki/index.php/RetrieveVertexData
private static unsafe void GetMeshInformation(MeshPtr mesh, out Vector3[] vertices, out int[] indices, Vector3 position, Quaternion orient, Vector3 scale)
{
bool addedShared = false;
int currentOffset = 0, sharedOffset = 0, nextOffset = 0, indexOffset = 0;
int vertexCount = 0, indexCount = 0;
// Calculate how many vertices and indices we're going to need
for (ushort i = 0; i < mesh.NumSubMeshes; ++i)
{
SubMesh submesh = mesh.GetSubMesh(i);
// We only need to add the shared vertices once
if (submesh.useSharedVertices)
{
if (!addedShared)
{
vertexCount += (int)mesh.sharedVertexData.vertexCount;
addedShared = true;
}
}
else
{
vertexCount += (int)submesh.vertexData.vertexCount;
}
// Add the indices
indexCount += (int)submesh.indexData.indexCount;
}
// Allocate space for the vertices and indices
vertices = new Vector3[vertexCount];
indices = new int[indexCount];
addedShared = false;
// Run through the submeshes again, adding the data into the arrays
for (ushort i = 0; i < mesh.NumSubMeshes; ++i)
{
SubMesh submesh = mesh.GetSubMesh(i);
VertexData vertexData = submesh.useSharedVertices ? mesh.sharedVertexData : submesh.vertexData;
if ((!submesh.useSharedVertices) || (submesh.useSharedVertices && !addedShared))
{
if (submesh.useSharedVertices)
{
addedShared = true;
sharedOffset = currentOffset;
}
VertexElement posElem = vertexData.vertexDeclaration.FindElementBySemantic(VertexElementSemantic.VES_POSITION);
System.Diagnostics.Debug.Assert(posElem.Type == VertexElementType.VET_FLOAT3);
using (HardwareVertexBufferSharedPtr vbuf = vertexData.vertexBufferBinding.GetBuffer(posElem.Source))
{
byte * vertex = (byte *)vbuf.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY);
float *preal;
for (uint j = 0; j < vertexData.vertexCount; ++j, vertex += vbuf.VertexSize)
{
posElem.BaseVertexPointerToElement(vertex, &preal);
Vector3 pt = new Vector3(preal[0], preal[1], preal[2]);
vertices[currentOffset + j] = (orient * (pt * scale)) + position;
}
vbuf.Unlock();
}
nextOffset += (int)vertexData.vertexCount;
}
IndexData indexData = submesh.indexData;
using (HardwareIndexBufferSharedPtr ibuf = indexData.indexBuffer)
{
bool use32bitindexes = ibuf.Type == HardwareIndexBuffer.IndexType.IT_32BIT;
int * plong = (int *)ibuf.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY);
ushort *pshort = (ushort *)plong;
int offset = submesh.useSharedVertices ? sharedOffset : currentOffset;
if (use32bitindexes)
{
for (uint k = 0; k < indexData.indexCount; ++k)
{
indices[indexOffset++] = plong[k] + offset;
}
}
else
{
for (uint k = 0; k < indexData.indexCount; ++k)
{
indices[indexOffset++] = pshort[k] + offset;
}
}
ibuf.Unlock();
}
currentOffset = nextOffset;
}
}
