var ratio = dynamic_resolution_ratio
ratio = ratio.clamp(min_dynamic_resolution_ratio, max_dynamic_resolution_ratio)
glViewport(0, 0, (display.width.to_f*ratio).to_i,
(display.height.to_f*ratio).to_i)
var ratio = dynamic_resolution_ratio
ratio = ratio.clamp(min_dynamic_resolution_ratio, max_dynamic_resolution_ratio)
glViewport(0, 0, (display.width.to_f*ratio).to_i,
(display.height.to_f*ratio).to_i)