private void ReadData(MeshPtr _meshPtr)
{
int indexOffset = 0;
uint vertexOffset = 0;
// read the index and vertex data from the mesh
for (ushort i = 0; i < _meshPtr.NumSubMeshes; i++)
{
SubMesh subMesh = _meshPtr.GetSubMesh(i);
//index
int indexOffset2 = ReadIndexData(indexOffset, vertexOffset, subMesh.indexData);
_index_Submesh.Add(i, new KeyValuePair <uint, uint>((uint)indexOffset, (uint)indexOffset2));
indexOffset = indexOffset2;
//vertex
if (subMesh.useSharedVertices == false)
{
vertexOffset = ReadVertexData(vertexOffset, subMesh.vertexData);
}
}
// add the shared vertex data
if (_meshPtr.sharedVertexData != null)
{
vertexOffset = ReadVertexData(vertexOffset, _meshPtr.sharedVertexData);
}
}
private void PrepareBuffers(MeshPtr _meshPtr)
{
uint indexCount = 0;
uint vertexCount = 0;
// Add any shared vertices
if (_meshPtr.sharedVertexData != null)
{
vertexCount = _meshPtr.sharedVertexData.vertexCount;
}
// Calculate the number of vertices and indices in the sub meshes
for (ushort i = 0; i < _meshPtr.NumSubMeshes; i++)
{
SubMesh subMesh = _meshPtr.GetSubMesh(i);
// we have already counted the vertices that are shared
if (subMesh.useSharedVertices == false)
{
vertexCount += subMesh.vertexData.vertexCount;
}
indexCount += subMesh.indexData.indexCount;
}
// Allocate space for the vertices and indices
_vertices = new Vector3[vertexCount];
_indices = new uint[indexCount];
_index_Submesh = new Dictionary <uint, KeyValuePair <uint, uint> >();
if (_readTextureCoordinate)
{
_textureCroodnitas = new Vector2[vertexCount];
}
}
private bool CheckSubMeshOpType(MeshPtr mesh, RenderOperation.OperationTypes opType)
{
for (ushort i = 0; i < mesh.NumSubMeshes; i++)
{
if (mesh.GetSubMesh(i).operationType != opType)
{
return(false);
}
}
return(true);
}
private void ReadData()
{
int indexOffset = 0;
uint vertexOffset = 0;
// read the index and vertex data from the mesh
for (ushort i = 0; i < meshPtr.NumSubMeshes; i++)
{
SubMesh subMesh = meshPtr.GetSubMesh(i);
indexOffset = ReadIndexData(indexOffset, vertexOffset, subMesh.indexData);
if (subMesh.useSharedVertices == false)
{
vertexOffset = ReadVertexData(vertexOffset, subMesh.vertexData);
}
}
// add the shared vertex data
if (meshPtr.sharedVertexData != null)
{
vertexOffset = ReadVertexData(vertexOffset, meshPtr.sharedVertexData);
}
}
private void Initiliase(MeshPtr meshPtr, bool autodispose_meshPtr, Vector3 scale, Quaternion qua, Vector3 pos, bool readtextcroodnitas)
{
this._scale = scale;
//this._meshPtr = meshPtr;
this.meshName = meshPtr.Name;
this.opType = meshPtr.GetSubMesh(0).operationType;
this._readTextureCoordinate = readtextcroodnitas;
this._quaoffset = qua;
this._posoffset = pos;
PrepareBuffers(meshPtr);
ReadData(meshPtr);
if (autodispose_meshPtr)
{
meshPtr.Dispose();
meshPtr = null;
}
}
public static unsafe void GetMeshInformation(MeshPtr mesh, ref uint vertex_count, ref Vector3[] vertices, ref uint index_count, ref uint[] indices,
Vector3 position, Quaternion orientation, 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;
for (ushort i = 0; i < mesh.NumSubMeshes; ++i) {
SubMesh submesh = mesh.GetSubMesh(i);
if (submesh.useSharedVertices) {
if (!added_shared) {
vertex_count += mesh.sharedVertexData.vertexCount;
added_shared = true;
}
}
else {
vertex_count += submesh.vertexData.vertexCount;
}
index_count += submesh.indexData.indexCount;
}
vertices = new Vector3[vertex_count];
indices = new uint[index_count];
added_shared = false;
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);
float* pReal;
for (int 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] = (orientation * (pt * scale)) + position;
}
vbuf.Unlock();
vbuf.Dispose();
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);
uint* pLong = (uint*) ibuf.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY);
ushort* pShort = (ushort*) pLong;
uint offset = submesh.useSharedVertices ? shared_offset : current_offset;
if (use32bitindexes) {
for (int k = 0; k < index_data.indexCount; ++k) {
indices[index_offset++] = pLong[k] + offset;
}
}
else {
for (int k = 0; k < index_data.indexCount; ++k) {
indices[index_offset++] = (uint) pShort[k] + (uint) offset;
}
}
ibuf.Unlock();
ibuf.Dispose();
current_offset = next_offset;
}
}
private void ReadData(MeshPtr _meshPtr) {
int indexOffset = 0;
uint vertexOffset = 0;
// read the index and vertex data from the mesh
for (ushort i = 0; i < _meshPtr.NumSubMeshes; i++) {
SubMesh subMesh = _meshPtr.GetSubMesh(i);
//index
int indexOffset2 = ReadIndexData(indexOffset, vertexOffset, subMesh.indexData);
_index_Submesh.Add(i, new KeyValuePair<uint, uint>((uint)indexOffset, (uint)indexOffset2));
indexOffset = indexOffset2;
//vertex
if (subMesh.useSharedVertices == false) {
vertexOffset = ReadVertexData(vertexOffset, subMesh.vertexData);
}
}
// add the shared vertex data
if (_meshPtr.sharedVertexData != null) {
vertexOffset = ReadVertexData(vertexOffset, _meshPtr.sharedVertexData);
}
}
private void PrepareBuffers(MeshPtr _meshPtr) {
uint indexCount = 0;
uint vertexCount = 0;
// Add any shared vertices
if (_meshPtr.sharedVertexData != null)
vertexCount = _meshPtr.sharedVertexData.vertexCount;
// Calculate the number of vertices and indices in the sub meshes
for (ushort i = 0; i < _meshPtr.NumSubMeshes; i++) {
SubMesh subMesh = _meshPtr.GetSubMesh(i);
// we have already counted the vertices that are shared
if (subMesh.useSharedVertices == false)
vertexCount += subMesh.vertexData.vertexCount;
indexCount += subMesh.indexData.indexCount;
}
// Allocate space for the vertices and indices
_vertices = new Vector3[vertexCount];
_indices = new uint[indexCount];
_index_Submesh = new Dictionary<uint, KeyValuePair<uint, uint>>();
if (_readTextureCoordinate) {
_textureCroodnitas = new Vector2[vertexCount];
}
}
private void Initiliase(MeshPtr meshPtr, bool autodispose_meshPtr, Vector3 scale, Quaternion qua, Vector3 pos, bool readtextcroodnitas) {
this._scale = scale;
//this._meshPtr = meshPtr;
this.meshName = meshPtr.Name;
this.opType = meshPtr.GetSubMesh(0).operationType;
this._readTextureCoordinate = readtextcroodnitas;
this._quaoffset = qua;
this._posoffset = pos;
PrepareBuffers(meshPtr);
ReadData(meshPtr);
if (autodispose_meshPtr) {
meshPtr.Dispose();
meshPtr = null;
}
}
// 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;
}
}
private bool CheckSubMeshOpType(MeshPtr mesh, RenderOperation.OperationTypes opType)
{
for (ushort i = 0; i < mesh.NumSubMeshes; i++)
{
if (mesh.GetSubMesh(i).operationType != opType)
{
return false;
}
}
return true;
}
// 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;
}
}
// 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;
}
}
public RaycastResult Raycast(Ray ray, uint queryMask)
{
RaycastResult rr = new RaycastResult();
RaySceneQuery raySceneQuery = this.sceneMgr.CreateRayQuery(new Ray());
raySceneQuery.SetSortByDistance(true);
// check we are initialised
if (raySceneQuery != null)
{
// create a query object
raySceneQuery.Ray = ray;
raySceneQuery.SetSortByDistance(true);
raySceneQuery.QueryMask = queryMask;
using (RaySceneQueryResult queryResult = raySceneQuery.Execute())
{
// execute the query, returns a vector of hits
if (queryResult.Count <= 0)
{
// raycast did not hit an objects bounding box
this.sceneMgr.DestroyQuery(raySceneQuery);
raySceneQuery.Dispose();
return(null);
}
// at this point we have raycast to a series of different objects bounding boxes.
// we need to test these different objects to see which is the first polygon hit.
// there are some minor optimizations (distance based) that mean we wont have to
// check all of the objects most of the time, but the worst case scenario is that
// we need to test every triangle of every object.
// Ogre::Real closest_distance = -1.0f;
rr.Distance = -1.0f;
Vector3 closestResult = Vector3.ZERO;
for (int qridx = 0; qridx < queryResult.Count; qridx++)
{
// stop checking if we have found a raycast hit that is closer
// than all remaining entities
if (rr.Distance >= 0.0f && rr.Distance < queryResult[qridx].distance)
{
break;
}
// only check this result if its a hit against an entity
if (queryResult[qridx].movable != null &&
queryResult[qridx].movable.MovableType == "Entity")
{
// get the entity to check
Entity entity = (Entity)queryResult[qridx].movable;
// mesh data to retrieve
Vector3[] vertices;
int[] indices;
RenderOperation.OperationTypes opType;
// get the mesh information
using (MeshPtr mesh = entity.GetMesh())
{
opType = mesh.GetSubMesh(0).operationType;
Debug.Assert(CheckSubMeshOpType(mesh, opType));
GetMeshInformation(
mesh,
out vertices,
out indices,
entity.ParentNode._getDerivedPosition(),
entity.ParentNode._getDerivedOrientation(),
entity.ParentNode._getDerivedScale());
}
int vertexCount = vertices.Length;
int indexCount = indices.Length;
// test for hitting individual triangles on the mesh
bool newClosestFound = false;
Pair <bool, float> hit;
switch (opType)
{
case RenderOperation.OperationTypes.OT_TRIANGLE_LIST:
for (int i = 0; i < indexCount; i += 3)
{
hit = Mogre.Math.Intersects(ray, vertices[indices[i]], vertices[indices[i + 1]], vertices[indices[i + 2]], true, false);
if (CheckDistance(rr, hit))
{
newClosestFound = true;
}
}
break;
case RenderOperation.OperationTypes.OT_TRIANGLE_STRIP:
for (int i = 0; i < indexCount - 2; i++)
{
hit = Mogre.Math.Intersects(ray, vertices[indices[i]], vertices[indices[i + 1]], vertices[indices[i + 2]], true, true);
if (CheckDistance(rr, hit))
{
newClosestFound = true;
}
}
break;
case RenderOperation.OperationTypes.OT_TRIANGLE_FAN:
for (int i = 0; i < indexCount - 2; i++)
{
hit = Mogre.Math.Intersects(ray, vertices[indices[0]], vertices[indices[i + 1]], vertices[indices[i + 2]], true, true);
if (CheckDistance(rr, hit))
{
newClosestFound = true;
}
}
break;
default:
throw new Exception("invalid operation type");
}
// if we found a new closest raycast for this object, update the
// closest_result before moving on to the next object.
if (newClosestFound)
{
rr.Target = entity;
closestResult = ray.GetPoint(rr.Distance);
}
}
}
this.sceneMgr.DestroyQuery(raySceneQuery);
raySceneQuery.Dispose();
// return the result
if (rr.Distance >= 0.0f)
{
// raycast success
rr.Position = closestResult;
return(rr);
}
else
{
return(null);
}
}
}
else
{
return(null);
}
}
public unsafe void GetSubMeshInformation(MeshPtr mesh,
ref uint vertex_count,
ref Mogre.Vector3[] vertices,
ref uint index_count,
ref UInt64[] indices,
Mogre.Vector3 position,
Quaternion orientation,
Mogre.Vector3 scale,
ushort subMeshIndex)
{
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;
SubMesh submesh = mesh.GetSubMesh(subMeshIndex);
// 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 Mogre.Vector3[vertex_count];
indices = new UInt64[index_count];
added_shared = false;
// Run through the submesh again, adding the data into the arrays
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);
float* pReal;
// 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;
for (int j = 0; j < vertex_data.vertexCount; ++j, vertex += vbuf.VertexSize)
{
posElem.BaseVertexPointerToElement(vertex, &pReal);
Mogre.Vector3 pt = new Mogre.Vector3(pReal[0], pReal[1], pReal[2]);
vertices[current_offset + j] = (orientation * (pt * scale)) + position;
}
// |!| Important: VertexBuffer Unlock() + Dispose() avoids memory corruption
vbuf.Unlock();
vbuf.Dispose();
next_offset += vertex_data.vertexCount;
}
IndexData index_data = submesh.indexData;
uint numTris = index_data.indexCount / 3;
HardwareIndexBufferSharedPtr ibuf = index_data.indexBuffer;
// UNPORTED line of C++ code (because ibuf.IsNull() doesn't exist in C#)
// if( ibuf.isNull() ) continue
// need to check if index buffer is valid (which will be not if the mesh doesn't have triangles like a pointcloud)
bool use32bitindexes = (ibuf.Type == HardwareIndexBuffer.IndexType.IT_32BIT);
uint* pLong = (uint*)ibuf.Lock(HardwareBuffer.LockOptions.HBL_READ_ONLY);
ushort* pShort = (ushort*)pLong;
uint offset = submesh.useSharedVertices ? shared_offset : current_offset;
if (use32bitindexes)
{
for (int k = 0; k < index_data.indexCount; ++k)
indices[index_offset++] = (UInt64)pLong[k] + (UInt64)offset;
}
else
{
for (int k = 0; k < index_data.indexCount; ++k)
indices[index_offset++] = (UInt64)pShort[k] + (UInt64)offset;
}
// |!| Important: IndexBuffer Unlock() + Dispose() avoids memory corruption
ibuf.Unlock();
ibuf.Dispose();
current_offset = next_offset;
// |!| Important: MeshPtr Dispose() avoids memory corruption
mesh.Dispose(); // This dispose the MeshPtr, not the Mesh
}