DirectX mesh unhandled exception

Dual Op Amp · 2009-05-20T03:15:03

Okay, I am trying to load a mesh with DirectX. Unfortunately, I'm getting an unhandled exception. [source land = "cpp"] bool Mesh::load(char* fileName) { HRESULT result; // Used for error checking. // Load mesh from the specified file. result = D3DXLoadMeshFromX(L"airplane 2.x", D3DXMESH_SYSTEMMEM, engine->getDevice(), NULL, &this->materialsBuffer, NULL, &this->materialCount, &this->mesh); if(result != D3D_OK) { return false; } // Extract the material properties and textures from material buffer. this->tempMaterials = (LPD3DXMATERIAL)this->materialsBuffer->GetBufferPointer(); this->materials = new D3DMATERIAL9[this->materialCount]; this->textures = new LPDIRECT3DTEXTURE9[this->materialCount]; // Create the materials and textures. for(int i = 0; i < this->materialCount; i++) { this->materials = this->tempMaterials.MatD3D; // Grab the material. // Set ambient color for material. this->materials.Ambient = this->materials.Diffuse; //this->materials.Emissive = this-> this->materials.Power = 0.5f; //this->materials.Specular = materials.Diffuse; // Grab the texture, if there's one. this->textures = NULL; if(this->tempMaterials.pTextureFilename != NULL) { // Load texture file specified in the .x file. result = D3DXCreateTextureFromFileA(engine->getDevice(), this->tempMaterials.pTextureFilename, &this->textures); if(result != D3D_OK) { return false; } } } } When I debug the program with a breakpoint in the D3DXLoadMeshFromX's error check, it hits. Meaning, that the D3DXLoadMeshFromX wasn't successful, but I don't know why. I also think that it has something to do with my initD3D function. Because, I often have problems with this. [source lang = "cpp"] int Engine::initD3D(int width, int height, int colorDepth, bool fullScreen) { // Initialize and check Direct3D. this->d3d = Direct3DCreate9(D3D_SDK_VERSION); if(this->d3d == NULL) { return 0; } // Get the color depth. this->d3d->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &d3dDisplayMode); // Set configuration options for Direct3D. D3DPRESENT_PARAMETERS d3dpp; ZeroMemory(&d3dpp, sizeof(d3dpp)); d3dpp.hDeviceWindow = getWindowHandle(); d3dpp.Windowed = (!fullScreen); // Windowed mode equals the opposite of fullScreen. d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD; d3dpp.EnableAutoDepthStencil = true; d3dpp.AutoDepthStencilFormat = D3DFMT_D16; d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE; d3dpp.BackBufferCount = 1; d3dpp.BackBufferFormat = d3dDisplayMode.Format; d3dpp.BackBufferWidth = width; d3dpp.BackBufferHeight = height; // Create Direct3D device. this->d3d->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, this->hWnd, D3DCREATE_HARDWARE_VERTEXPROCESSING, &d3dpp, &this->d3dDevice); if(this->d3dDevice == NULL) { this->message("D3D failed to initialise.", "Engine"); return 0; } // Clear the back buffer to black. this->clearScene(D3DCOLOR_XRGB(0, 0, 0)); // Create a pointer to the back buffer. this->d3dDevice->GetBackBuffer(0, 0, D3DBACKBUFFER_TYPE_MONO, &this->d3dBackBuffer); // Use ambient lighting and z-buffering. this->d3dDevice->SetRenderState(D3DRS_ZENABLE, true); this->d3dDevice->SetRenderState(D3DRS_FILLMODE, D3DFILL_SOLID); this->setAmbient(this->ambientColor); // Initialize renderer. HRESULT result = D3DXCreateSprite(this->d3dDevice, &this->d3dSpriteHandler); if(result != D3D_OK) { return 0; } // Call game initialization extern function. /**if(!game_init(this->getWindowHandle())) { return 0; }**/ // Set the default material. this->setDefaultMaterial(); return 1; }

Graphics and GPU Programming Programming

Started by Dual Op Amp May 19, 2009 01:10 AM

15 comments, last by Evil Steve 14 years, 11 months ago

programci_84

336

May 19, 2009 02:36 AM

Hi,

1-) Did you set transform states?

YourD3DDevice->SetTransform (D3DTS_WORLD, &yourModelsWorldMatrix);YourD3DDevice->SetTransform (D3DTS_VIEW, &yourViewMatrix);YourD3DDevice->SetTransform (D3DTS_PROJECTION, &yourProjMatrix);

2-) It will be better if you use an ambient and a shading state.

YourD3DDevice->SetRenderState (D3DRS_AMBIENT, 0xFFFFFFFF); //whiteYourD3DDevice->SetRenderState (D3DRS_SHADEMODE, D3DSHADE_GOURAUD);

Hope this helps.
Regards,
Rohat.

There's no "hard", and "the impossible" takes just a little time.

Dual Op Amp

122

Author

May 19, 2009 02:41 AM

Well... I've set both the view and projection transforms, but those are set in my camera.cpp. But, I didn't set the world transform, becuase I'm holding off making that transform until I'm ready to rotate, translate, and scale my mesh.

But first I need to render it.

Do I need the transform world, just to render it?

I'm a Christian!!!

programci_84

336

May 19, 2009 02:51 AM

If you don't use any world transform, DirectX will asuume that world transform is done with an identity matrix. So, your mesh would be positioned at origin, looking at +z direction.

There's no "hard", and "the impossible" takes just a little time.

Evil Steve

2,021

May 19, 2009 03:12 AM

The debug runtimes are your friend.

Dual Op Amp

122

Author

May 19, 2009 11:21 AM

Okay, now that I've had some sleep and am rested up...

First-chance exception at 0x779d42eb in Cell Engine.exe: Microsoft C++ exception: long at memory location 0x002ff710..

Okay, okay... I debugged this. And found that it pops up in the draw method. It says this every time the code goes through DrawSubset(i);
Since my mesh has 3 subsets, it does this 3 times per frame.

It says the like a million times during runtime.

I'm a Christian!!!

Dual Op Amp

122

Author

May 19, 2009 04:38 PM

Yes!!!!!!!!!!!!!!!!!!!!!!!!

Eight hours of staring at a computer, and I finally got it to render!!!!
Stupid me!!!!

I encapselated my renderStart() and renderStop() functions into renderFrame().
Then in WinMain, I called renderFrame() and then mesh->draw().

The mesh wasn't drawing because the endScene function had already been called...

Now, I can die......

Edit: Okay, so why do I have to put the whole adress of my mesh, and how can I get the project to be set in the proper directory?

I'm a Christian!!!

Evil Steve

2,021

May 20, 2009 03:15 AM

Quote:Original post by Dual Op Amp
Edit: Okay, so why do I have to put the whole adress of my mesh, and how can I get the project to be set in the proper directory?

You don't have to put the whole path in, but it's best to eliminate an incorrect path as a possible source of error.
You could just load "Foo.x" if the file was in the same directory as the working directory. When running in visual studio, the working director is set to that of your solution (or project, I'm not sure which - I always put them in the same directory) - although you can change that in the project properties, and when run from explorer by double-clicking the EXE, the working directory is the same directory as the EXE.

DirectX mesh unhandled exception

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