[Solved][Git] Crash with creating Heightfield Geometry

I am using this commit http://github.com/betajaen/nxogre/commi ... e27bf00d4d

I want to match NxOgre heightfield with Ogre TSM (I use 1.6). I've generated .xhf file from raw image using Flour 0.3.2.
When I try to create geometry from heightfield I get a crash:
"Unhandled exception at 0x00000000 in Esertia.exe: 0xC0000005: Access violation reading location 0x00000000."

Here is related code:

NxOgre::ResourceSystem::getSingleton()->openArchive("media", "file:../../data");

NxOgre::HeightField* hf = NxOgre::HeightFieldManager::getSingleton()->load("media:test1.xhf");
NxOgre::HeightFieldGeometry* hfg = new NxOgre::HeightFieldGeometry(hf, Vector3(5000,350,5000));
mScene->createSceneGeometry(hfg); // <-- crash here

Here is callstack generated by MSVC

00000000()
NxOgre_Debug.dll!NxOgre::PhysXShapeBinder::BindShape(NxShape * shape=0x0b41cdb8) Line 95 + 0x25 bytes C++
NxOgre_Debug.dll!NxOgre::RigidBody::create(NxOgre::RigidBodyPrototype * prototype=0x0b41c760, NxOgre::Scene * scene=0x0b37ea88, NxOgre::Array<NxOgre::Shape *> * final_shapes=0x0b41c9ec) Line 197 + 0xc bytes C++
NxOgre_Debug.dll!NxOgre::SceneGeometry::SceneGeometry(NxOgre::RigidBodyPrototype * prototype=0x0b41c760, NxOgre::Scene * scene=0x0b37ea88) Line 53 C++
NxOgre_Debug.dll!NxOgre::Scene::createSceneGeometry(NxOgre::Shape * shape=0x002ea3ac, const NxOgre::Matrix44 & pose={...}, const NxOgre::RigidBodyDescription & description={...}) Line 216 + 0x33 bytes C++
Esertia.exe!GameRoot::setupPhysics() Line 180 + 0x171 bytes C++
Esertia.exe!GameRoot::GameRoot(Options * opts=0x002ea600) Line 99 C++
Esertia.exe!WinMain(HINSTANCE__ * hInst=0x00400000, HINSTANCE__ * __formal=0x00000000, char * strCmdLine=0x002f2c8c, HINSTANCE__ * __formal=0x00000000) Line 38 + 0x2f bytes C++
Esertia.exe!__tmainCRTStartup() Line 589 + 0x35 bytes C
Esertia.exe!WinMainCRTStartup() Line 414 C
kernel32.dll!768d3833()
[Frames below may be incorrect and/or missing, no symbols loaded for kernel32.dll]
ntdll.dll!77b9a9bd()

Same files (I mean .xhf and executables) worked fine with BloodyMess 1.5.5.

Looks like a Null Pointer exception, probably the heightfield.

This may be the culprit:

NxOgre::ResourceSystem::getSingleton()->openArchive("media", "file:../../data");

Don't cheat, make an archive to that data directory.

I've tried to specify the full path to directory... Nothing changed (Or I misunderstod you?).
I've made a debug build and updated the call stack in first post.

And I repeat - same .xhf file and code works fine with 1.5.5. Maybe I should use Git Flour with it?

Git Flour doesn't do heightfields, yet.

If you like you can PM the heightfield and I'll see if I can get it working for you.

I'm getting the same error after upgrading Git too, with my code from the wiki.

Thought it was my fault, but maybe it's not.

This is the nxogre-related stack trace
00000000()
> NxOgre_Debug.dll!NxOgre::PhysXShapeBinder::BindShape(NxShape * shape=0x0a284848) Line 95 + 0x25 byte C++
NxOgre_Debug.dll!NxOgre::RigidBody::create(NxOgre::RigidBodyPrototype * prototype=0x0a316a68, NxOgre::Scene * scene=0x0bb6ba98, NxOgre::Array<NxOgre::Shape *> * final_shapes=0x0a2bc084) Line 197 + 0xc byte C++
NxOgre_Debug.dll!NxOgre::SceneGeometry::SceneGeometry(NxOgre::RigidBodyPrototype * prototype=0x0a316a68, NxOgre::Scene * scene=0x0bb6ba98) Line 53 C++
NxOgre_Debug.dll!NxOgre::Scene::createSceneGeometry(NxOgre::Shape * shape=0x0a3acd34, const NxOgre::Matrix44 & pose={...}, const NxOgre::RigidBodyDescription & description={...}) Line 216 + 0x33 byte C++

And it crashes on
(*gFunctions[shape->getType()])(shape);

I was using 779a2023c9a4e9b7d5b0f1a9898d13af5c1db04d and upgraded to 409449197e85fafb0c9ea512aa1242659c9b5cd4

This fixes it for me, everything is working again:

After line 89 in NxOgreRigidBody.cpp add
gFunctions[NX_SHAPE_HEIGHTFIELD] = &PhysX_NxHeightFieldShape_BindFunction;

Hope this works for you too

Excellent find! I feel a little stupid leaving that piece of code out.

Anyway; http://github.com/betajaen/nxogre/commi ... a377d86999

Once the OP confirms, I'll mark this thread as solved and close it.

Yes, Illidanz's fix helps a lot, it works now.

Offtopic:
But I noticed some strange behaviour.
Betajaen, you adviced me to change archive path from relative (file:../../data) to absolute (file:D:/backup/ogre/Esertia/Game/data).
But when i use absolute path my app crashes with heap corruption on this line:

NxOgre::HeightField* hf = NxOgre::HeightFieldManager::getSingleton()->load("media:test1.xhf");

And it works with relative path... What am I doing wrong?

Actually, it was my bad. Go back to the relative path, when I wrote that, I mis-read what you typed and was thinking you was using directories in ArchiveResourceIdentifiers - which is a no-no.