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What is the difference between Unity's Camera.ScreenPointToRay and Camera.ScreenToWorldPoint. And where we can use these. I've watched some tutorial and documentation but I didn't get a clear understanding.

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  • \$\begingroup\$ The documentation is quite clear: ScreenPointToRay: Returns a ray going from camera through a screen point. ScreenToWorldPoint: Transforms 'position' from screen space into world space. \$\endgroup\$ – Hellium May 14 '18 at 14:10
  • \$\begingroup\$ @Hellium Thank you so much for your response now I've got the meaning. \$\endgroup\$ – Abhinay Singh Negi May 15 '18 at 16:29
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ScreenPointToRay returns a ray, basically something pointing in the direction of the mouse from the location of the camera.

ScreenToWorldPoint point actually returns a 3d position under the mouse.

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