checkCollisions inside the skybox

[Alex10]

I want to have a camera (the player) does not go beyond the stage. So I applied checkcollision on skybox. But it was used outside Cuba behind the scenes and inside the camera falls down from the edge of the stage.

var camera = new BABYLON.FreeCamera("camera1", new BABYLON.Vector3(80, 5, -10), scene);camera.setTarget(BABYLON.Vector3.Zero());camera.ellipsoid = new BABYLON.Vector3(2, 2, 1);camera.checkCollisions = true;camera.applyGravity = true;// Skybox var skybox = BABYLON.Mesh.CreateBox("skyBox", 390.0, scene); var skyboxMaterial = new BABYLON.StandardMaterial("skyBox", scene); skyboxMaterial.reflectionTexture = new BABYLON.CubeTexture("/skybox", scene); skyboxMaterial.reflectionTexture.coordinatesMode = BABYLON.Texture.SKYBOX_MODE; skybox.material = skyboxMaterial; skybox.checkCollisions = true;

 

 

[RaananW]

Collision detection is using the normals of the box/sphere of the skybox, which are pointing outwards.

One way is to invert all normals. The other is, if it's a box, to build invisible collision walls that are positioned where the skybox is.

[Alex10]

Somewhere there are examples "invert all normals"?

[RaananW]

Inverting the normals has other consequences that you might need to handle. Light will reflect differently, for example.

 

Technically it is done like this - http://www.babylonjs-playground.com/#1MMWXU#1 . I still need to debug exactly why it isn't working correctly - just another reason to simply create walls :-)

[Alex10]

But if I run this example, the arrow, the camera goes abroad skybox !

https://www.dropbox.com/s/jh1px6a7b20mim6/123.png?dl=0

[RaananW]

yep, as I said - I still need to debug exactly why it isn't working correctly - just another reason to simply create walls :-)

Don't trust normal inversion. Create walls, invisible walls. It will be better.