Unproject mouse to 3d world on z=variable

Questions
1

Based on this answer - how would I have to modify it to get the position in 3d space on z = 200 (or some other variable) instead of z = 0?

I’m trying to resize geometry as you would resize square in Adobe illustrator. In order to do that I need to know the difference between mousemove in 3d space on plane where my geometry is. Maybe there is another/better way of resizing geometry by dragging edge?

2

It seems this is explained in the post.

If you need the point “under the mouse” and in the plane z = targetZ , replace the distance computation with:

var distance = ( targetZ - camera.position.z ) / vec.z;

So targetZ would be 200 in your case.

3

Thank you.
I guess I’m not very smart. I spend a few hours trying to figure it out while it was right there.

4

Is that answer still applicable? I’ve seen other posts suggesting that the unproject is being phased out

5

Seems to be live and kicking - this method is the only way to do this without having to care about camera type, why would they get rid of it?

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