Problem loading textures

[timofiend]

So I am following tutorial 15 of the tutorials on the Irrlicht website, and I copied and pasted the exact code into Visual Studio express 2010, but for some reason no textures are being loaded, and so nothing appears on screen when i try to run the program.

This is a screenshot of the code that appeared in the command prompt window.

edit - put the correct screenshot in

http://i.imgur.com/qdM9m.jpg

Made no changes to the tutorial instructions, any ideas why the textures arent loading?

[greenya]

Probably path to the textures is wrong.

You can copy all those textures to your Debug folder and use just their names for loading, or you should specify correct relative path.

[timofiend]

This is the tutorial I am using:

http://irrlicht.sourceforge.net/docu/example015.html

There is no mention of the texture filepaths, I assumed the textures would be stored in the .irr file and load up automatically?

I did specify file paths for certain objects and it loaded the textures for them, but I thought I would not have to do this as the tutorial made no mention of it?

edit - It cannot seem to load the example file either, says it could not open the .3ds mesh file or the textures, file paths are definitely correct.

[greenya]

You better check what returns "device->getFileSystem()->getWorkingDirectory()". Maybe Visual Studio starts your project not from Debug, but from root of the project. I mean it starts not like "app.exe", but like "Debug\app.exe".

[timofiend]

Im pretty sure its running from the debug folder, as the irrlicht DLL file has to be in this folder with the .exe otherwise the program will not run

[wahagn]

Did you alreday check wheter that folder exist en is on the place where the program is trying to find it? I mean the ../../media folder ofcourse

[timofiend]

Yep double checked the folder exists, and it also says it failed to open the .3ds file and texture files, not failed to find them. But im sure the file paths are correct.

I also tried doing the simpler tutorial that came with the irrlicht download, which did not include collision detection etc, which still didnt work.

This is the code from the simpler tutorial exactly as it was in the tut, apart from the file path amendment, and the stdafx header at the top which was not included in the tut.

I cant see anything wrong here (although I am a newbie at this), and I get no errors when compiling etc, just cannot load any files that I imported into irredit (3ds or obj files etc) or load any textures. Any ideas?

Code: Select all

#include "stdafx.h"
#include <irrlicht.h"
using namespace irr;

#pragma comment(lib, "Irrlicht.lib")

int main()
{
	// ask user for driver

	video::E_DRIVER_TYPE driverType;

	printf("Please select the driver you want for this example:\n"\
		" (a) Direct3D 9.0c\n (b) Direct3D 8.1\n (c) OpenGL 1.5\n"\
		" (d) Software Renderer\n (e) Apfelbaum Software Renderer\n"\
		" (f) NullDevice\n (otherKey) exit\n\n");

	char i;
	std::cin >> i;

	switch(i)
	{
		case 'a': driverType = video::EDT_DIRECT3D9;break;
		case 'b': driverType = video::EDT_DIRECT3D8;break;
		case 'c': driverType = video::EDT_OPENGL;   break;
		case 'd': driverType = video::EDT_SOFTWARE; break;
		case 'e': driverType = video::EDT_BURNINGSVIDEO;break;
		case 'f': driverType = video::EDT_NULL;     break;
		default: return 1;
	}	

	// create device and exit if creation failed

	IrrlichtDevice* device =
		createDevice(driverType, core::dimension2d(640, 480));

	if (device == 0)
		return 1; // could not create selected driver.

	device->setWindowCaption(L"Load .irr file example");

	video::IVideoDriver* driver = device->getVideoDriver();
	scene::ISceneManager* smgr = device->getSceneManager();

//Now load our .irr file. .irr files can store the whole scene graph including animators, materials and particle systems. And there is also the possibility to store arbitrary user data for every scene node in that file. To keep this example simple, we are simply loading the scene here. See the documentation at ISceneManager::loadScene and ISceneManager::saveScene for more information. So to load and display a complicated huge scene, we only need a single call to loadScene().

// load the scene

smgr->loadScene("c:/irrlicht-1.7.2/media/example.irr"); 

//That was it already. Now add a camera and draw the scene.

	// add a user controlled camera

	smgr->addCameraSceneNodeFPS();

	// and draw everything.
	
	while(device->run())
	if (device->isWindowActive())
	{
		driver->beginScene(true, true, video::SColor(0,200,200,200));
		smgr->drawAll();
		driver->endScene();
	}

	device->drop();
	
	return 0;
}

[Lonesome Ducky]

.irr files load textures relative to the executable, and not the irr file. Could that be part of the problem?

[Radikalizm]

Im pretty sure its running from the debug folder, as the irrlicht DLL file has to be in this folder with the .exe otherwise the program will not run

This is not necessarily true, check your project settings to see whether your working directory actually is the same directory as your executable, visual studio defaults the working directory to the project directory

[Nalin]

Im pretty sure its running from the debug folder, as the irrlicht DLL file has to be in this folder with the .exe otherwise the program will not run

This is not necessarily true, check your project settings to see whether your working directory actually is the same directory as your executable, visual studio defaults the working directory to the project directory

This is true. Listen to this.

Also, try this code snippet. It will set your working directory to the same directory your executable is running from:

Code: Select all

io::path base_directory;
{
	// Get the base directory.
#if defined(WIN32) || defined(_WIN32)
	// Get the path.
	TCHAR path[MAX_PATH];
	GetModuleFileName(0, path, MAX_PATH);

	// Find the program exe and remove it from the path.
	// Assign the path to homepath.
	base_directory = path;
	int pos = base_directory.findLast('\\');
	if (pos == -1) base_directory = "";
	else if (pos != (base_directory.size() - 1))
		base_directory = base_directory.subString(0, pos + 1);
#else
	// Get the path to the program.
	char path[260];
	memset((void*)path, 0, 260);
	readlink("/proc/self/exe", path, sizeof(path));

	// Assign the path to homepath.
	char* end = strrchr(path, '/');
	if (end != 0)
	{
		end++;
		if (end != 0) *end = '\0';
		base_directory = path;
	}
#endif
}
device->getFileSystem()->changeWorkingDirectoryTo(base_directory);