checkVisibility: Difference between revisions
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{{Command|Comments= | {{Command|Comments= | ||
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|gr1= Math - Geometry |GROUP1= | |gr1= Math - Geometry |GROUP1= | ||
| Checks if one position is visible from another position and how much. The results can be affected by [[getTerrainGrid]] value, especially if position is near the ground. Particle effects such as smoke can also affect the results. |DESCRIPTION= | | Checks if one position is visible from another position and how much. The results can be affected by [[getTerrainGrid]] value, especially if position is near the ground. Particle effects such as smoke can also affect the results. |DESCRIPTION= | ||
| [ignore, LOD, ignore2] [[checkVisibility]] [beg, end] |SYNTAX= | | [ignore, LOD, ignore2] [[checkVisibility]] [beg, end] |SYNTAX= | ||
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| [[Number]] - how much end position is visible to start position in range 0..1, where 1 is fully visible. |RETURNVALUE= | | [[Number]] - how much end position is visible to start position in range 0..1, where 1 is fully visible. |RETURNVALUE= | ||
|x1= <code>_cansee = [<nowiki/>[[objNull]], "VIEW"] [[checkVisibility]] [<nowiki/>[[eyePos]] [[player]], [[eyePos]] unit1];</code> |EXAMPLE1= | |x1= <code>_cansee = [<nowiki/>[[objNull]], "VIEW"] [[checkVisibility]] [<nowiki/>[[eyePos]] [[player]], [[eyePos]] unit1];</code> |EXAMPLE1= | ||
Revision as of 00:20, 17 January 2021
Description
- Description:
- Checks if one position is visible from another position and how much. The results can be affected by getTerrainGrid value, especially if position is near the ground. Particle effects such as smoke can also affect the results.
- Groups:
- Math - Geometry
Syntax
- Syntax:
- [ignore, LOD, ignore2] checkVisibility [beg, end]
- Parameters:
- [ignore, LOD, ignore2]: Array
- ignore: Object - object to exclude from calculations
- LOD: String - level of details to use. Possible values are: "FIRE", "VIEW", "GEOM", "IFIRE", "PHYSX" - PhysX geometry LOD (since Arma 3 v2.01.146666)
- ignore2 (Optional): Object - second object to exclude from calculations (Since Arma 3 v1.61.136673)
- [beg, end]: Array
- beg: Array - start position in format PositionASL
- end: Array - end position in format PositionASL
- Return Value:
- Number - how much end position is visible to start position in range 0..1, where 1 is fully visible.
Examples
- Example 1:
_cansee = [objNull, "VIEW"] checkVisibility [eyePos player, eyePos unit1];
Additional Information
- See also:
- lineIntersectsWithlineIntersectsSurfaceslineIntersectsObjsintersectterrainIntersectterrainIntersectASLterrainIntersectAtASLlineIntersectscursorObjectcursorTargetdisableRemoteSensors
Notes
-
Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note
Notes
Bottom Section
- Posted on August 8, 2016 - 22:38 (UTC)
- BaerMitUmlaut
-
Particles that have blockAIVisibility set to 1 will influence the result, but will not make checkVisibility return 0. Instead an extremly small number will be returned.
Distance, fog, overcast, rain and nighttime have no effect on the result.