Screen To World: Difference between revisions

Added examples, adapted "How do I know which object is being tapped?" article from old wiki
(Small improvements)
(Added examples, adapted "How do I know which object is being tapped?" article from old wiki)
 
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Given a screen coordinate, outputs the start and end points of a line going through that point (2 and 400 units away from the camera, respectively).
Given a screen coordinate, outputs the start and end points of a line going through that point (2 and 400 units away from the camera, respectively).


That might sound weird, but usually you'll just wire those points into a [[Raycast]] to find the object the user tapped, or [[Line vs Plane]] to find where on the ground the user tapped!
That might sound weird, but usually you'll just wire those points into a [[Raycast]] to find the object the user tapped, or [[Line vs Plane]] to find where on the ground the user tapped (see [[Screen To World#Examples|Examples]]).


== Notes ==
== Notes ==
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Because of this bug, the script will not function correctly on the first frame. To avoid incorrect values, use the block's output only if the [[Current Frame]] is greater than 0.
Because of this bug, the script will not function correctly on the first frame. To avoid incorrect values, use the block's output only if the [[Current Frame]] is greater than 0.
== Examples ==
* Find the object the user has tapped by using [[Raycast]].
: {{Image|Tapped object.png}}
* Find the position on the ground the user tapped (and place an object there) by using [[Line vs Plane]].
: {{Image|Line vs plane example1.png}}


== Related ==
== Related ==