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[SOLVED] BABYLON.Vector3.Project returning NaN


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I have a problem with the function Project function inside the Vector3 class.

This is my code:

var screenXY = BABYLON.Vector3.Project(
    new BABYLON.Vector3(10, 10, 10),
    camera.viewport.toGlobal(engine.getRenderWidth(true), engine.getRenderHeight(true))

What I want to do is get the 2d screen x/y position from a 3d vector.


And this is what gets returned from the function:

Vector3 {x: NaN, y: NaN, z: NaN}


How can I fix this?

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Howdy @Tim_Rosskamp,

is it by anc chance the first frame of the scene? In this case - just wait for the second one :)

Simple example here - https://www.babylonjs-playground.com/#6XQZ4P

The first frame is nan, probably because of the transformation matrix, but after everything is set, it is calculated correctly.

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  • Tim_Rosskamp changed the title to [SOLVED] BABYLON.Vector3.Project returning NaN

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