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util.PixelVisible

number util.PixelVisible( Vector position, number radius, pixelvis handle t PixVis )

Description

Returns the visibility of a sphere in the world.

Arguments

1 Vector position
The center of the visibility test.
2 number radius
The radius of the sphere to check for visibility.
3 pixelvis handle t PixVis
The PixVis handle created with util.GetPixelVisibleHandle.

Don't use the same handle twice per tick or it will give unpredictable results.

Returns

1 number
Visibility, ranges from 0-1. 0 when none of the area is visible, 1 when all of it is visible.

Example

Draws a box when the center of the map is visible on your screen.

local PixVis hook.Add( "Initialize", "SetupPixVis", function() PixVis = util.GetPixelVisibleHandle() end ) hook.Add( "HUDPaint", "TestPixelVisibility", function() local visible = util.PixelVisible( Vector( 0, 0, 0 ), 16, PixVis ) if visible and visible ~= 0 then draw.RoundedBox( 10, 0, 0, 100, 100, Color( 0, 0, 0, 200 * visible ) ) end end )

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