screenToWorld: Difference between revisions

From Bohemia Interactive Community
m (updated formatting for parsing)
m (updated formatting)
 
Line 40: Line 40:
|p21= camera: [[Object]] - camera object
|p21= camera: [[Object]] - camera object


|p22= position: [[Array]] - screen position [x,y] (see [[SafeZone]] for more info)
|p22= screen: [[Array]] with [x, y] - screen position, see [[SafeZone]] for more information
* x: [[Number]]
* y: [[Number]]


|r2= [[Position#PositionAGL|PositionAGL]], world position on surface [x,y,0]
|r2= [[Position#PositionAGL|PositionAGL]], world position on surface [x,y,0]

Latest revision as of 18:38, 5 January 2026

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Description

Description:
Returns the position on landscape (PositionAGL) corresponding to the given point on screen (in UI coordinates).
This command performs an intersection with the ground/water surface, from the camera position along the screenToWorldDirection vector up to viewDistance for terrain intersection and 2 * viewDistance for water intersection. In other words, it is similar to doing:
private _p1 = AGLToASL positionCameraToWorld [0, 0, 0]; // camera position ASL private _vector = screenToWorldDirection _screenPos; // "aim" vector private _p2 = _p1 vectorAdd (_vector vectorMultiply viewDistance * 2); // the ray does not go beyond 2 * view distance ASLToAGL terrainIntersectAtASL [_p1, _p2]
Groups:
Positions

Syntax

Syntax:
screenToWorld screen
Parameters:
screen: Array with [x, y] - screen position, see SafeZone for more information
Return Value:
PositionAGL, world position on surface [x, y, 0]

Alternative Syntax

Syntax:
camera screenToWorld position
Parameters:
camera: Object - camera object
screen: Array with [x, y] - screen position, see SafeZone for more information
Return Value:
PositionAGL, world position on surface [x,y,0]

Examples

Example 1:
private _wPos = screenToWorld [0.5, 0.5];
Example 2:
private _wPos = _myCamera screenToWorld [0.5, 0.5]; // since Arma 3 2.18

Additional Information

See also:
SafeZone worldToScreen screenToWorldDirection

Notes

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