local rt = GetRenderTarget("cam_rt", 512, 512, false)
local oldrt = render.GetRenderTarget()
local width, height = ScrW(), ScrH()

local suppress = false

hook.Add("PostDrawOpaqueRenderables", "cam", function()

    if suppress then return end

    render.SetRenderTarget(rt)

    suppress = true
        render.RenderView({
            x = 0, y = 0, w = 512, h = 512,
            origin, angles = vector_origin, Angle(0, 0, 0),
            fov = 90,
            ortho = false

        })
    suppress = false

    render.SetViewPort(0, 0, 512, 512)
    render.SetRenderTarget(oldrt)

end)