local panel = {}

function panel:Init()
end

local m=Matrix()
local vec = Vector(20, 20, 0)
local ang = Angle(0, 0.1, 0)

function panel:Paint(w, h)
    draw.RoundedBox(8,0,0,w,h,color_black)

    m:Translate(vec)
    m:Rotate(ang)
    m:Translate(-vec)

    surface.SetDrawColor(Color(255,0,0,255))

    cam.PushModelMatrix(m)
        surface.DrawRect(w/2, h/2, 128, 128)
    cam.PopModelMatrix()
end

vgui.Register("asda",panel,"EditablePanel")

if (asd) then asd:Remove() end

asd=vgui.Create("asda")
asd:SetSize(600,500)
asd:Center()