addskyboxscencenode and camera projection orhtogonal

bitarboll · Post by **bitarboll** » Sat May 02, 2009 11:58 am

hi
i need help im creating a game and im in in irrlicht functions so i have a camera with a projection orthogonal and i made a skybox
its working without a problem./ now my problem is beacuse the camera is orthogonal which means i cant move in Z which is normal the texture or image on the skybox is too flu bcz its too lcose so what im trying to say is that i nedd help in showing the texture of the sky.

PS: my camera is fixed so it moves when the person is movining the end of the screen
if any help here is my both code
in the main:

IrrlichtDevice* device = createDevice(video::EDT_OPENGL,
core::dimension2d<s32>(800, 600), 16, false, false, false, 0);

Game::getGame()->setDevice(device);

video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager* vue = device->getSceneManager();
vue->addAnimatedMeshSceneNode(vue->getMesh("ninja.b3d"));

scene::ISceneNode* ni = vue->addSkyBoxSceneNode(driver->getTexture("2.jpg"),
driver->getTexture("2.jpg"),driver->getTexture("2.jpg"),
driver->getTexture("2.jpg"),driver->getTexture("2.jpg"),
driver->getTexture("2.jpg"));

in the camera file:
matrix4 projMat;

Camera = smgr->addCameraSceneNode(0,vector3df(-39,17,25),
vector3df(0,17,25),id );

projMat.buildProjectionMatrixOrthoLH(65*TestNode,50*TestNode,1,100000);//80*TestNode,60*TestNode,10,1000);
Camera->setProjectionMatrix(projMat);

bitarboll · Post by **bitarboll** » Sat May 02, 2009 4:02 pm

may be i can make it more clear my question. my question is how can i control the size of my testure on the skybox or just a way to make texture smaller on the skybox

Lonesome Ducky · Post by **Lonesome Ducky** » Sat May 02, 2009 4:24 pm

So what you're trying to do is scale the texture in the skybox?

Ok, here is the code assuming your skybox's name is skybox:

Code: Select all

	for (int x = 0; x < skybox->getMaterialCount(); x++) {
		core::matrix4 m = skybox->getMaterial(x).getTextureMatrix(0);
		m.buildTextureTransform(0,core::vector2df(0,0),core::vector2df(0,0),core::vector2df(2,2));
		skybox->getMaterial(x).setTextureMatrix(0,m);
		skybox->getMaterial(x).TextureLayer[0].TextureWrap = video::ETC_REPEAT;
	}

The vector2df(2,2) at the end of buildTextureTransform is how many times you want the texture to repeat.

bitarboll · Post by **bitarboll** » Sat May 02, 2009 9:10 pm

thx man it helped me alot