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Pixi Js Scan line effect accumulated float point errors and screen refresh problems. Weird problem looking for help.

BMM_Archive · July 15, 2026

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Preserved forum archive. This topic stores the original first post and locally mirrored RPG Maker Web attachments when available. It is posted by the BMMPlay archive account, not by the original creator.

Original Source

Original title: Pixi Js Scan line effect accumulated float point errors and screen refresh problems. Weird problem looking for help.
Original author: cronenbuilder
Original date: February 10, 2025
Source thread: https://forums.rpgmakerweb.com/threads/pixi-js-scan-line-effect-accumulated-float-point-errors-and-screen-refresh-problems-weird-problem-looking-for-help.175315/
Source forum path: Game Development Engines > RPG Maker MZ Support

Summary

Hey everyone, here with another weird esoteric problem. I am using casper's pixi filter plugin to create a crt scanline effect (https://casper-gaming.itch.io/cgmz-pixi-filters). If the game runs for x amount of time slanted errors in the scanline appear which destroys the aesthetic and is hard on the eyes. This is a common issue with scanline effects in PixiJS and can occur due to floating-point precision errors accumulating over time or synchronization issues between the scanline animation and the game's refresh rate. Anyone have any ideas, refresh rate edits? Maybe just reimplementing...

Archived First Post

Hey everyone, here with another weird esoteric problem. I am using casper's pixi filter plugin to create a crt scanline effect
(https://casper-gaming.itch.io/cgmz-pixi-filters). If the game runs for x amount of time slanted errors in the scanline appear which destroys the aesthetic and is hard on the eyes. This is a common issue with scanline effects in PixiJS and can occur due to floating-point precision errors accumulating over time or synchronization issues between the scanline animation and the game's refresh rate. Anyone have any ideas, refresh rate edits? Maybe just reimplementing the plugin command IE turning off and back on every map refresh(I wouldn't know where to begin).

Downloads / Referenced Files

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Download: https://casper-gaming.itch.io/cgmz-pixi-filters

Creator Claims / Removal

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