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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Applying the CRT Effect causes the shrink down of scene","articleBody":"Hi, maybe this question is stupid. I am using the arcade 3.3.2 CRT filter feature on a project, but it causes a shrink down of the size of the original scene and offsets the scene to bottom left corner. Would like to know if there are any solutions? Thanks.\n\n```py\ndef __init__(self):\n        super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE, resizable=False)\n        # Set the background color\n        arcade.set_background_color(arcade.color.BLACK)\n        \n        # Create the CRT filter\n        self.crt_filter = CRTFilter(\n            GAME_WIDTH, GAME_HEIGHT,\n            resolution_down_scale=1.5,\n            hard_scan=-6.0,\n            hard_pix=-2.0,\n            display_warp=Vec2(1.0 / 16.0, 1.0 / 24.0),\n            #mask_dark=0.6,\n            #mask_light=1.4\n        )\n```\nI try to apply cameras to fix it but not working: \n\n```py\ndef on_draw(self):\n        if self.filter_on:\n            # Draw our stuff into the CRT filter instead of on screen\n            self.crt_filter.use()\n            self.crt_filter.clear()\n\n            # Use our camera for proper projection\n            self.game_camera.use()\n            self._draw_game()\n            \n            self.use()\n            self.clear()\n\n            with self.gui_camera.activate():\n                self.crt_filter.draw()\n        else:\n            # Draw our stuff directly to the screen\n            self.use()\n            self.clear()\n            self.game_camera.use()\n            self._draw_game()\n```\n\n","author":{"url":"https://github.com/JackIsGoofingOff","@type":"Person","name":"JackIsGoofingOff"},"datePublished":"2025-10-03T13:48:29.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/2775/arcade/issues/2775"}