func (self *Window) Draw(ctx vg.Context) {
now := time.Now()
_, _, w, h := self.Bounds()
fbw, fbh := self.FramebufferSize()
// Calculate pixel ration for hi-dpi devices.
bg := color.Gray13
gl.ClearColor(gl.Float(bg.R), gl.Float(bg.G), gl.Float(bg.B), gl.Float(bg.A))
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_BIT)
//Do OpenGL stuff
// Iterate over scene, rendering what can be rendered
if self.renderer != nil {
self.renderer.Render()
}
// 2D Display
// r := float64(fbw) / float64(w)
gl.Viewport(0, 0, gl.Sizei(fbw), gl.Sizei(fbh))
if self.child != nil {
ctx.BeginFrame(int(w), int(h), 1.0)
self.child.SetBounds(0.0, 0.0, float64(w), float64(h))
self.child.Draw(ctx)
ctx.EndFrame()
}
if debug {
fmt.Println(time.Since(now))
}
}