moderngl-window-retina.patch

diff --git a/moderngl_window/integrations/imgui.py b/moderngl_window/integrations/imgui.py
index 254c29a..3534a01 100644
--- a/moderngl_window/integrations/imgui.py
+++ b/moderngl_window/integrations/imgui.py
@@ -230,9 +230,10 @@ class ModernGLRenderer(BaseOpenGLRenderer):
                 texture.use(0)
 
                 x, y, z, w = command.clip_rect
-                viewport_offset_x = (self.wnd.width - self.wnd.viewport_width / self.wnd.pixel_ratio) / 2
-                viewport_offset_y = (self.wnd.height - self.wnd.viewport_height / self.wnd.pixel_ratio) / 2
-                self.ctx.scissor = int(x + viewport_offset_x), int(fb_height + viewport_offset_y - w), int(z - x), int(w - y)
+                viewport_offset_x = (self.wnd.width - self.wnd.viewport_width / self.wnd.pixel_ratio)
+                viewport_offset_y = (self.wnd.height - self.wnd.viewport_height / self.wnd.pixel_ratio)
+                x, y, z, w = x / self.wnd.pixel_ratio, y / self.wnd.pixel_ratio, z / self.wnd.pixel_ratio, w / self.wnd.pixel_ratio
+                self.ctx.scissor = int(x + viewport_offset_x), int(display_height + viewport_offset_y - w), int(z - x), int(w - y)
                 self._vao.render(
                     moderngl.TRIANGLES, vertices=command.elem_count, first=idx_pos
                 )