Code not working, please help !

[mark01]

After finding out that showing an animation during the loading process is really complicated I decided to do a static loading screen. But even this is not working

I try to draw the Image only during the loading process and I think therefore I need a Begin and EndScene Command.

Loop for the picture during the loadingprocess looks like this:

do{

driver->beginScene(true, true, 0);
driver->draw2DImage(driver->getTexture "../00.HdM/Hintergrund2.jpg"),
core::position2d<s32>(0,0));

driver->endScene();
//driver->clearZBuffer();

} while (mesh = smgr->getMesh("../00.HdM/mesh.my3d")->getMesh(0));



After the loading Process the Titlescreen should change to the main loop where the main scene is drawn. I also need Begin and EndScene here.


while(device->run())
if (device->isWindowActive())
{
driver->beginScene(true, true, 0);

smgr->drawAll();

driver->endScene();
}



how may I handle this? Dont know how to do this withous 2 Begin and EndScene Commands. If I do it like this either the picture is drawn and it doesnt go through to the main scene or the picture is not drawn but the scene instead.

Please help

[JP]

do{

driver->beginScene(true, true, 0);
driver->draw2DImage(driver->getTexture "../00.HdM/Hintergrund2.jpg"),
core::position2d<s32>(0,0));

driver->endScene();
//driver->clearZBuffer();

} while (mesh = smgr->getMesh("../00.HdM/mesh.my3d")->getMesh(0));

What the HELL is that??

Sure the code within the loop is right but you don't want a loop there and the statement within the while statement is completely wrong for what you want and will NOT loop whilst the mesh is being loaded anyhow.

I've posted how to do a progress bar in another thread last night, it may have even been for you, so just do what i did there!

[mark01]

yes that was my thread but its not possible, because I only have one big mesh and not several where I put the progress information between.

only want to display a picture and erase it when loading is done

[FuzzYspo0N]

It seems a lot of ppl believe you are unable to use the draw functions of the driver and gui etc.

For example :

IGUImage* image = guiEnv->addImage(driver->getTexture("image.jpg"));

guiEnv->drawall();

LOAD MESH

image->remove();

[mark01]

I know the drawing calls, but dont know where to put it to get the loadingscreen only during smgr-getmesh()

with guienv->addImage I dont get a result at all.
Only a blank screen.

With draw2dimage I got a result but dont no where to put it because it should be only during the texture loading

please help

[dlangdev]

you will probably need two while loopers, one for showing the loading screen and the other one the scene itself.

in the first loop, you can load a very small scene with a one or two textures, probably add a sound node just for fun.

before you enter the first loop, setup the code for loading the second scene. then check for isloaded() and then break out of the first and enter the second one when loading is done.

[dlangdev]

Code: Select all

mesh = smgr->getMesh("../00.HdM/mesh.my3d")->getMesh(0); 
do{ 

driver->beginScene(true, true, 0); 
driver->draw2DImage(driver->getTexture "../00.HdM/Hintergrund2.jpg"), 
core::position2d<s32>(0,0)); 

driver->endScene(); 
//driver->clearZBuffer(); 
g_isloaded = mesh->something_that_returns_is_loaded();
} while ( !g_isloaded ) ; 

i'm assuming smgr->getMesh() is non-blocking.

otherwise, let's think of another way.

[CuteAlien]

Why loop at all? Just call the draw and then load. The reason that you usually have a loop around that stuff is that you want to change the screen 60 times per second (or whatever your FPS). As long as it's not changing you don't need to redraw it all the time.

[mark01]

I think it stucks during the smgr-getmesh call.
Im also not sure if a loop is needed because after loading with smgr->getmesh it would maybe be enough to erase the picture. But dont know how this is done.

Like said before the GUIEnvironment call dont work so I cant use the image->remove thing.

Also I dont know if its possible to do Begin - EndScende twice, perhaps the error lies within this issue

all I know is that when doing the thing like above without the while loop is that it stucks on the loading screen

[dlangdev]

how about using two scene managers?

you're using only one, though.

try two and see how it works.

[CuteAlien]

all I know is that when doing the thing like above without the while loop is that it stucks on the loading screen

Sure it's stuck. You wrote a do while loop which runs as long as smgr->getMesh returns a true result. So it loads - returns true - starts loading again - returns true - start loading... (well, it will actually take it from the cache after the first time, but still - it will just continue doing so infinitely)

Did you try to just remove the do-while? If I don't miss something here, then it's just not needed.

[dlangdev]

it would be nice to have it in a loop because i'll be using this feature later when the camera is focused on a guided dialogue scene, while the next scene is loading.

this way, loading time is minimized.

[sudi]

lol......just do:

Code: Select all

driver->beginScene(true, true, 0);
driver->draw2DImage(driver->getTexture "../00.HdM/Hintergrund2.jpg"),
core::position2d<s32>(0,0));
driver->endScene(); 

mesh = smgr->getMesh("../00.HdM/mesh.my3d")->getMesh(0);

That will show the loading screen.

[JP]

Yes, just do as Sudi says. That will display a static screen for the duration of the mesh loading and will remain until you start your rendering loop.

getMesh IS blocking, i.e. it won't return until the mesh has been loaded.

Some of you people really need to go and learn some C++!

[dlangdev]

well, it's finally here...getmesh() is blocking.

no sirreee, it's not possible to animate while loading.

splatting a texture first before calling loadmesh() is the way to....

....go.