Disapearing Mesh when moving camera

[Memorial76]

I have a strange trouble with my scene.

I create a sphere mesh scene node with a radius R.
When my camera's position X is greater than R or lesser than -R my sphere disapear. But it doesn't occur with Y or Z component of position.

As anybody any idea about that?
Thanks

[CuteAlien]

If you are using 1.7 please try updating to 1.7.1. I'm not sure if the bug also affected the usual clipping, but it sounds a lot like something which could have been caused by the bug in the 1.7 aabbox collision test.

[randomMesh]

If you are using Irrlicht 1.7, it could be wrong culling due to the broken aabbox3d intersection functions.

In that case, it would help to upgrade to 1.7.1.

[Memorial76]

Thanks a lot trying that at once and reporting.

[Memorial76]

It's even worth!!! now it happens in each direction: each time Camera X, Y or Z is greater than R the sphere disapear!

[CuteAlien]

Can you post some example-code so we can reproduce the problem? Otherwise it's hard to help ...

[Memorial76]

Allright:

here is my camera:

Code: Select all

scene::ICameraSceneNode* pCamera = m_pSceneMgr->addCameraSceneNodeFPS(0,
		1000,
		1000,
		-1,
		0,
		0,
		false,
		100,
		true,
		true);

pCamera->setPosition(core::vector3df(695000, 695000, 695000));
	pCamera->setTarget(core::vector3df(0,0,0));
	pCamera->setFarValue(10000000000);

here is the incriinated scene node:
the mesh "sun.3ds" has a radius of 6.96.
The same happens with a sphereSceneNode

Code: Select all

pSceneMgr->addMeshSceneNode(pSceneMgr->getMesh("./res/sun.3ds"),
		0,
		1,
		core::vector3df(0,0,0),
		core::vector3df(0,0,0),
		core::vector3df(100000,100000,100000));

Thanks for your interest!

[randomMesh]

I'd say: Try a smaller world scale.

[Memorial76]

Of course I tried it prior to posting here

[hybrid]

Yeah, this far value will almost always lead to trouble due to zbuffer corruptions.

[Memorial76]

Allright, i re-tried with values under 100 and it worked properly.
Sorry for that
Thanks a lot anyway

[hybrid]

far value under 100 is also very strange, though it does not have such problems. Common values are around 10000-50000.

[Memorial76]

For now it's okay up to 1 000 000 of Farvalue