about image? [SOLVED]

[r1cky1708]

hi.
i load an image file using Material like this code

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MaterialPtr img;
img = MaterialManager::getSingleton().create(fileName, "General", false);
img->getTechnique(0)->getPass(0)->createTextureUnitState(fileName + ".jpg");
imgNode = mSceneMgr->getRootSceneNode()->createChildSceneNode(fileName);

rect = new Rectangle2D(true);
rect->setCorners(-1.0, 1.0, 1.0, -1.0);
rect->setMaterial(fileName);
rect->setRenderQueueGroup(RENDER_QUEUE_BACKGROUND);
rect->setBoundingBox(AxisAlignedBox(-100.0*Vector3::UNIT_SCALE, 100.0*Vector3::UNIT_SCALE));	
imgNode = mSceneMgr->getSceneNode(fileName);
imgNode->attachObject(rect);	
mSceneMgr->getSceneNode(fileName)->setVisible(true);

the image's background that i load is loaded too.

how can i load an image file, but i don't want to load the background too
can i rotate the image?

thx for the help

[r1cky1708]

i use that code to make menu option.
and the fps always going down.
do i must destroy the imgNode?

[zolt4n]

you can do overlay like that :

http://www.ogre3d.org/phpBB2/viewtopic. ... 202#255202

[r1cky1708]

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// Initialisation 
_material = Ogre::MaterialManager::getSingleton().create(Name + "/default", "General"); 
    _container = (OverlayContainer*) OverlayManager::getSingletonPtr()->createOverlayElement("Panel", Name); 
    _container->setMaterialName(_material->getName()); 
    _container->setPosition(xPos, yPos); 
    _guiOverlay = OverlayManager::getSingletonPtr()->create(Name); 
    _guiOverlay->add2D(_container); 
    _guiOverlay->show(); 

// set picture 

   _texture = TextureManager::getSingleton().load(fileName,"General"); 
   TextureUnitState *pTexState; 
   if(_material->getTechnique(0)->getPass(0)->getNumTextureUnitStates()) 
      pTexState = _material->getTechnique(0)->getPass(0)->getTextureUnitState(0); 
   else 
       pTexState = _material->getTechnique(0)->getPass(0)->createTextureUnitState( _texture->getName() ); 

    pTexState->setTextureAddressingMode(TextureUnitState::TAM_CLAMP); 
    _material->getTechnique(0)->getPass(0)->setSceneBlending(SBT_TRANSPARENT_ALPHA);

can you give me the initialitation of

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_material
_container
_guiOverlay
_texture

b'cos i try to use your code, but it got an error compile

thx

[r1cky1708]

i can use your program now.
but how to set width and height of the image?

[r1cky1708]

thx, i can do the width and height

[zolt4n]

I don't know how to load an another pic if someone find ...

[zolt4n]

find !!!

if (!_texture.isNull())
_texture->freeInternalResources();

_texture = TextureManager::getSingleton().load(fileName, _group);
_texture->reload();

But I think that is a little durty.

Now if you find for alpha on pic say me !!!

[r1cky1708]

what do you mean by alpha on pic?
like you don't want to load the background of an image?

i use this

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MaterialPtr material2 = MaterialManager::getSingleton().create("menu", "General");
material2->getTechnique(0)->getPass(0)->createTextureUnitState("jarum.png");
material2->getTechnique(0)->getPass(0)->setSceneBlending(SBT_TRANSPARENT_ALPHA );
material2->getTechnique(0)->getPass(0)->setDepthCheckEnabled(false);
material2->getTechnique(0)->getPass(0)->setDepthWriteEnabled(false);
material2->getTechnique(0)->getPass(0)->setLightingEnabled(false);

[zolt4n]

Something like transparency

like

_container->setColour(ColourValue(1, 1, 1, 0.5));

it's working for text but don't for pic

[r1cky1708]

did you already use your program for make a menu
i load that overlay again, and it getting dark

here is the screenshot


and this is the image that getting dark

[zolt4n]

In fact is not for a menu more for a hud (little item on bottom).

And I want my overlay to appear , disappear ....
with transparency during the game.

I find something like that but it don't work very well because colour red is allways transparent now...

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// this line is ok to my transparency with setColour but native  transparency on png don't work now 
_material->getTechnique(0)->getPass(0)->setSceneBlending(SBT_TRANSPARENT_COLOUR);
     

// this line is now to native transparency , but red is allways transparent ... I'm desapointed ...
_material->getTechnique(0)->getPass(0)->setAlphaRejectSettings(Ogre::CompareFunction::CMPF_GREATER_EQUAL, 255);

ps : r1cky1708 I send you a private messge

[r1cky1708]

i can load my image right now, but i'm using my own code

i forgot have resize it
here is the mistake, this is what i use

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rect->setBoundingBox(AxisAlignedBox(-100.0*Vector3::UNIT_SCALE, 100.0*Vector3::UNIT_SCALE));

and, here is the right one

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rect->setBoundingBox(AxisAlignedBox(-100000.0*Vector3::UNIT_SCALE, 100000.0*Vector3::UNIT_SCALE));

for zolt4n,
for your alpha, i'll try to find that