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cam.Start3D

  cam.Start3D( Vector pos = nil, Angle angles = nil, number fov = nil, number x = nil, number y = nil, number w = nil, number h = nil, number zNear = nil, number zFar = nil )
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Description

Sets up a new 3D rendering context. Must be finished by cam.End3D.

For more advanced settings such as an orthographic view, use cam.Start instead, which this is an alias of basically.

All parameters are optional, and fall back parameters that of the "current" or "last" render operation.

This is a rendering hook which provides a 3d rendering context.
Negative x/y values won't work.

Issue Tracker: 1995
This will not update current view properties.

Issue Tracker: 2682

Arguments

1 Vector pos = nil
Render cam position.
2 Angle angles = nil
Render cam angles.
3 number fov = nil
Field of view.
4 number x = nil
X coordinate of where to start the new view port.
5 number y = nil
Y coordinate of where to start the new view port.
6 number w = nil
Width of the new viewport.
7 number h = nil
Height of the new viewport.
8 number zNear = nil
Distance to near clipping plane.
Both zNear and zFar need a value before any of them work.

zNear also requires a value higher than 0.

9 number zFar = nil
Distance to far clipping plane.

Example

Set up a 3D rendering environment in a 2D rendering hook to render models on HUD.

hook.Add( "HUDPaint", "3d_camera_example", function() cam.Start3D() for id, ply in ipairs( player.GetAll() ) do ply:DrawModel() end cam.End3D() end )
Output: All players can be seen through walls.

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