answered BoundingBox Issue

[adam]

I'm having issues with parts of my model not showing when it extends beyond the bounding box at the edge of the screen.  I tried using the extendSize property, but it doesn't seem to have any effect.  Has anyone had any success with updating the size of the bounding box?

 

[jerome]

yep : https://github.com/BabylonJS/Babylon.js/blob/master/src/Culling/babylon.boundingInfo.ts#L45

http://doc.babylonjs.com/classes/2.3/AbstractMesh#getboundinginfo-rarr-boundinginfo-classes-2-3-boundinginfo-

So something, like : 

mesh.getBoundingInfo().update(mesh._worldMatrix);

should do the job (not tested : check the syntax)

 

Else, simpler : http://doc.babylonjs.com/classes/2.3/Mesh#refreshboundinginfo-rarr-void

mesh.refreshBoundingInfo();

will force the BoundingInfo re-computation

[adam]

I tried calling refreshBoundingBox  refreshBoundingInfo every frame, but doesn't appear to be doing anything (it doesn't change on the debug layer). 

I was hoping I could just set the extendSize variable when the model loads.  All I need is to scale the bounding box by 1.5 or 2 on the x axis.

[jerome]

actually, this is refreshBoundingInfo()

Do you have a PG ?

[adam]

For now, I'm just going to add some extra invisible vertices to the model in order to force a larger bounding box.  

If anyone knows another simple and efficient way to force a larger bounding box I would gladly do that instead of my invisible vertices hack.  Thanks

[adam]

Unfortunately, I can't release this model in a PG.

[jerome]

var vis = 100; // visibility scaling
mesh._boundingInfo = new BABYLON.BoundingInfo(new Vector3(-vis, -vis, -vis), new Vector3(vis, vis, vis));

 

[adam]

That is what I was looking for.  Thanks!

[adam]

I'm going to have to make another model that I can use in a PG because I'm still having issues with submeshes (eyes) randomly not displaying at the edge of the screen even after increasing the size of the bounding box and sphere.

[adam]

Here is the PG:

http://www.babylonjs-playground.com/#1K8ZRL#3

Zoom out and move the camera around to see the issue with eyes.  

 

[jerome]

http://www.babylonjs-playground.com/#1JFDFW#12

lines from 219 to 223

[adam]

Changing the size of the bounding box and sphere doesn't fix the issue.

http://www.babylonjs-playground.com/#1K8ZRL#5

http://www.babylonjs-playground.com/#1K8ZRL#7

[GameMonetize]

You have to also update submeshes bounding info:

http://www.babylonjs-playground.com/#1K8ZRL#8

Or you can just force the mesh to always being selected:

http://www.babylonjs-playground.com/#1K8ZRL#9

 

[adam]

Thanks!