3d to 2d err

[zhg115]

var p = BABYLON.Vector3.Project(vector, 
            BABYLON.Matrix.Identity(), 
            scene.getTransformMatrix(), 
            camera.viewport.toGlobal(engine));

it's return P { x: NaN , y: NaN}

camera.viewport.toGlobal(engine) is null 

e {x: NaN, y: NaN, width: NaN, height: NaN}

i find google and the result page is return the NaN too.

http://www.babylonjs-playground.com/#UWSIL#1

 

I use it this function last month, and it worked. 

but now didn't work. 

I don't konw why?

help...

 

[GameMonetize]

yep we changed signature (really rare but sometimes we have to do it) to this new one:

http://doc.babylonjs.com/classes/2.4/Viewport#toglobal-renderwidth-renderheight-rarr-viewport-classes-2-4-viewport-