 | | | C++/FTK - AddTriangleList() causes crash. :( | C++/FTK - AddTriangleList() causes crash. :( 2004-07-09 - By Jed
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Hello All,
I'm in the process of writing an export plugin for a 3D app in an effort
to speed up transition from it to XSI. I had already partly hacked out
a half-working version before but decided to use the FTK as it makes life
a little easier with some of the heirarchies in the models.
Anyway, to the problem...
I've created a mesh and populated the VertexLists and created and poulated
NormalLists and UVCoorLists.
The code I used is a combination of what was in the SLTest source and the
documentation for CLSBaseShape. I've compiled and run the SLTest exe and
it runs fine, but for some reason, when I try do to something similar
it crashes for no reason.
Heres the extract of the code I knocked up to test that I was creating
the Mesh object correctly.
---code---
// Add a Mesh Model
m_Model = m_RootModel->AddMesh();
m_Model->SetName("testmesh");
m_Model->Visibility()->SetVisibility(SI_TRUE);
// Get a hook to this models Mesh.
m_Mesh = (CSLMesh*) m_Model->Primitive();
m_BaseShape = (CSLBaseShape*) m_Mesh->Shape();
m_Shape = (CSLShape*) m_BaseShape;
// Get a hook to the vertices
CSLBaseShape::CSLVector3DArray *l_Vertices = m_BaseShape->GetVertexList();
l_Vertices->Resize(9);
// Get a hook to the normals
CSLBaseShape::CSLVector3DArray *l_Normals = m_BaseShape->CreateNormals();
l_Normals->Resize(9);
// Get a hook to the UV co-ords
CSLBaseShape::CSLVector2DArray *l_UVCoords = m_Shape->CreateUVCoords();
l_UVCoords->Resize(9);
// Set the vertices/Normals
for (int i=0;i<9;i++)
{
(*l_Vertices)[i].Set( 0.0f, 0.0f, 0.0f );
(*l_Normals)[i].Set ( 0.0f, 1.0f, 0.0f );
(*l_UVCoords)[i].Set( 2.0f, 3.0f );
}
// Add a triangle list and fill it.
CSLTriangleList* l_TriList = m_Mesh->AddTriangleList();
---endcode---
The above works absolutely fine without the last line of code, but if I
include it and try and run the compiled exe, it gives me the error:
First-chance exception in ftk_test.exe (XSIFTK.DLL): 0xC0000005: Access
Violation.
I've check my project settings and its all as per the doumentation for
setting it
up in the MSVC6 project environment.
I'm at a complete loss! I have no idea what its doing or how to solve
it. I'm not
the best C++ programmer in the world so I'm really stumped with this one.
Any ideas?
- Jed
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