I’ve exported a glb from Blender with a few animation tracks. I’ve got it to animate when the user clicks ‘play’ & then once finished ‘activate plunger’ sprays mist out of the tube (which is a png, texture mapped to a plane in blender)
1st Question: The plane is just fired off-screen on the last frame of the animation but is there a way to get the plane to disappear completely at the end of the animation instead of this workaround?
2nd Question: Is it possible to billboard the plane so it always faces the camera on the Z-axis?
About billboardMode, adding sprayPlane.billboardMode = BABYLON.Mesh.BILLBOARDMODE_Y; doesn’t do anything, I think it’s because animation keys overwrite mesh rotation values (note that I’m not sure about this).
I’ve updated the animation and the onAnimation observables seem to do the trick.
I’ve also removed the sprayMesh.preserveParentRotationForBillboard = true;
so that the billboarding isn’t overwritten by the rotation values. But it’s now firing the animation off the wrong axis.
Thanks again for looking into this - I think it may not be possible to do what I want to achieve from what I’ve seen in other posts but wanted to just double check.