parenting troubles(Now with screens)

[Xenxe]

no this does not have to do with real HUMAN CHILDREN!!!

ok i put the pistol in front of the camera i can see it WHEN IT IS NOT PARENTED but when it is I cant see it.

my assumption is that the pistol is automatically put at the cameras center when i parented it so can i move with it but can i set its position while its parented? so i can see it


ok here is my code

Code: Select all

#include <irrlicht.h>
#include <iostream>

using namespace irr;

#ifdef _MSC_VER
#pragma comment(lib, "Irrlicht.lib")
#endif


int main()
{
	


	IrrlichtDevice *device =
		createDevice(video::EDT_DIRECT3D9, core::dimension2d<s32>(640, 480), 16, false);
		
	
	video::IVideoDriver* driver = device->getVideoDriver();
	scene::ISceneManager* smgr = device->getSceneManager();

	
	device->getFileSystem()->addZipFileArchive("../media/map-20kdm2.pk3");

	
	scene::IAnimatedMesh* q3levelmesh = smgr->getMesh("20kdm2.bsp");
	scene::ISceneNode* q3node = 0;

	scene::IAnimatedMesh* pistol = smgr->getMesh("../media/pistol.3ds");
	scene::ISceneNode* pistolnode = 0;

	if (q3levelmesh)
		q3node = smgr->addOctTreeSceneNode(q3levelmesh->getMesh(0));

	if (pistol)
		pistolnode = smgr->addOctTreeSceneNode(pistol->getMesh(0));



	

	scene::ITriangleSelector* selector = 0;
	pistolnode->setPosition(core::vector3df(5,17,10));
	if (q3node)
	{		
		q3node->setPosition(core::vector3df(-1350,-140,-1410));

		selector = smgr->createOctTreeTriangleSelector(q3levelmesh->getMesh(0), q3node, 128);
		q3node->setTriangleSelector(selector);
	}


	
	scene::ICameraSceneNode* camera = 
		smgr->addCameraSceneNodeFPS(0, 100.0f, 300.0f, -1, 0, 0, true);
	camera->setPosition(core::vector3df(0,50,0));

	if (selector)
	{
		scene::ISceneNodeAnimator* anim = smgr->createCollisionResponseAnimator(
			selector, camera, core::vector3df(30,50,30),
			core::vector3df(0,-3,0), 
			core::vector3df(0,50,0));
		selector->drop();
		camera->addAnimator(anim);
		anim->drop();
	}

	
	

	device->getCursorControl()->setVisible(false);

	scene::ISceneNode* selectedSceneNode = 0;
	scene::ISceneNode* lastSelectedSceneNode = 0;

	pistolnode->setParent(camera);
	
	int lastFPS = -1;

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

		smgr->drawAll();
	
		driver->endScene();

		int fps = driver->getFPS();

		if (lastFPS != fps)
		{
		  core::stringw str = L"test[";
		  str += driver->getName();
		  str += "] FPS:";
		  str += fps;

		  device->setWindowCaption(str.c_str());
		  lastFPS = fps;
		}
	}

	device->drop();
	
	return 0;
}

[MasterGod]

Yes, when parenting the child's position is relative to its parent.
You should set the pistol's position few units in front (Z axis) of the camera and that should do it.

[Xenxe]

how?
you see i have already put it in front of the camera im sure of it ill upload a screenshot when i can right now im having photobucket probs

here

this is me with out pistolnode->setParent(camera)

the black thing is my pistol (This is only a test this is not the actual pistol model that im goin to put in the game)

ps im sorry for low bandwidth users for the unbearibly large picture

now with the parent

PISTOLS GONE!!!

so how do i move the pistol in front of me while its parented

[Xenxe]

this is just so people will look at it again

[greenya]

Try to

Code: Select all

camera->setNearValue(0.01f);

(it may helps)

P.S.: also try to move pistol node more away from the camera until you can see it. than step-by-step decrease the distance.

[Xenxe]

that is for clipping distance witch i beleive is how far away till i start clipping polys from veiw so the FPS is bigger

and this does not help with my parenting issues

[CuteAlien]

First, don't add the pistol as octreenode. Those should be used for large static geometry (like your level). A normal node will do.

Then, did you try to set the position after you added the pistol to the camera? Because currently you set the position relativ to it's old parent (though I'm not really sure here, as maybe it won't be updated yet). Well, just try setting it later.

And then I guess it's too close, the near-clipping plane will probably clip it (edit: someone mentioned it already, but I guess you only know about the far-clipping plane. There's another one clipping objects which are close-up).

[Xenxe]

yes i tried positioning after parenting before i even posted this i at least try to solve my problems before i post them!!!

[rogerborg]

Your code as posted seems to work fine. Try replacing pistol.3ds with (e.g.) faerie.md2 from the sample media, and you should see it working.

From that, I'd suggest that perhaps the issue is with your pistol model itself; the geometry may be offset in model space to the extent that it's outside the camera's frustum.

[Xenxe]

dontworry about this i solved it

[greenya]

maybe i'm late, but this:

Code: Select all

scene::ICameraSceneNode *cam = irrScene->addCameraSceneNodeFPS();

	scene::ISceneNode *gun = irrScene->addCubeSceneNode(10, cam);
	gun->setScale(vector3df(0.5,0.5,1.0));
	gun->setPosition(vector3df(8,-5,15));

	irrScene->addCubeSceneNode(100);

Produces this:


p.s.: simple and working.

[Xenxe]

hmmm ill try that your way is nicer