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Camera.ViewportToWorldPoint

function ViewportToWorldPoint (position : Vector3) : Vector3

Description

Transforms position from viewport space into world space.

Viewport space is normalized and relative to the camera. The bottom-left of the camera is (0,0); the top-right is (1,1). The z position is in world units from the camera.

// Draw a yellow sphere at top-right corner of the near plane
// for the selected camera in the scene view.
function OnDrawGizmosSelected () {
var p = camera.ViewportToWorldPoint (Vector3 (1,1, camera.nearClipPlane));
Gizmos.color = Color.yellow;
Gizmos.DrawSphere (p, 0.1);
}