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render.ComputePixelDiameterOfSphere

<function name="ComputePixelDiameterOfSphere" parent="render" type="libraryfunc"> <description>Calculates diameter of a 3D sphere on a 2D screen. <rendercontext hook="false" type="3D"></rendercontext> </description> <realm>Client</realm> <added>2023.09.06</added> <args> <arg name="point" type="Vector">The position of the sphere in 3D space.</arg> <arg name="radius" type="number">The radius of the sphere in 3D space.</arg> </args> <rets> <ret type="number">The diameter of the sphere in 2D screen space.</ret> </rets> </function> <example> <code> hook.Add( "HUDPaint", "HUDPaint_PixelDiameterOfSphereExample", function() local point = Vector( 0, 0, 0 ) cam.Start3D() local diameter = render.ComputePixelDiameterOfSphere( point, 10 ) cam.End3D() local pos2D = point:ToScreen() surface.DrawCircle( pos2D.x, pos2D.y, diameter / 2, Color( 255, 120, 0 ) ) end ) </code> </example>

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