اوپن تونز برای Pencil testing توسط انیماتور ها و یک کارگردان استفاده شده بود.
Studio Chizu از یک نرم افزار دیگر برای Pencil testing استفاده کرده بود. آنها برای تولید «Belle» پس از شنیدن سوابق موفق دیگر استودیو ها تصمیم به مهاجرت به اوپن تونز گرفتند.
آنها پایه های دوربین را روی هر میز طراحی قرار می دهند تا انیماتور ها بتوانند انیمیشن خودشان را در حین انجام کار بررسی کنند. آنها همچنین برای انیماتور هایی که از خانه کار می کنند محیط مشابهی را در خانه برای Pencil testing ساختند.

نظراتی از کارکنان در استودیو:
«از آنجایی که اوپن تونز نسبت به نرم افزار معمول پایدار تر بود ما می توانستیم از آن برای تولید بدون هیچ مشکل بحرانی ای استفاده کنیم. انیماتور ها استفاده از نرم افزار را نسبتا به سرعت یاد گرفته بودند. اون یک ابزار کاربر پسند و قدرتمند است.»

"Natsuzora" is a television drama series depicting the life of a heroine who becomes an animator in the early days of Japanese animation industry. OpenToonz was utilized in the production of the opening titles and many of the animated sequences to process effect compositions and cinematography.

Comments from Yoichi Senzui, the director of photography:
"I decided to use OpenToonz considering that it is useful for inputting the Xsheet and also it is easy to modify the painted drawings. During the production I could start creating the scene in parallel with ink & paint work. And in case there were adjustments in animation drawings, we could handle the changes seamlessly in the same software. So, using OpenToonz was timesaver."

OpenToonz was utilized for pencil testing by keyframe and inbetween animators.

TRIGGER had been introduced OpenToonz for pencil testing since the production of "Kiznaiver". In "Promare" production, OpenToonz was used not only by animators for checking thier own work, but also by an animation director and a director for checking and modifying timing of all animation footages.

OpenToonz was also utilized for "線撮"(Sensatsu, line compositing) on a trial basis. "線撮" is a workflow of making pre-visualization movie by using intermediate materials, which is to be used for post-production in case the production runs behind schedule.The clapperboard feature and the time code fx were newly developed and introduced for that purpose.

The camera capture feature of OpenToonz was utilized for pencil testing by keyframe and inbetween animators. It’s notable that the camera capture feature was originally demanded by the director Kitaro Kousaka and introduced to the production for the first time.

In one of the triple feature ”Invisible”, OpenToonz and GTS were utilized in all digital workflows including scanning, color designing, ink & painting, and compositing. A new visual effect for reproducing lens distortion was developed in order to represent a scene looked over a main character’s spectacles. OpenToonz was also utilized for pencil testing in the production of other two short films "Kanini & Kanino" and "Life ain't gonna lose".

BATMAN NINJA is an animated film created mainly by 3DCG. However certain scenes incorporate traditional 2D animation. OpenToonz was utilized in the production of those scenes to process strokes, effect compositions and cinematography (e.g. camera works). One of the reasons why OpenToonz was chosen for this film was because it processes drawing in a special format which preserves the halftone information required to replicate the natural look of a pencil’s stroke and subtle faint lines. Additionally, OpenToonz uses a palette system which enables the user to work flexibly - a user can for example work on the cinematography of materials before the colorization process or change the color specification without having to go back to the finishing process.