Aviutl Tips, Tricks and Support thread

[gabgab21]

Hello! I want to know if it is possible to do this text effect or something similar.

https://www.youtube.com/watch?v=Ci_zad39Uhw (the first 11 seconds)

[Bumblebee 9337]

I was having trouble with color/luminescence flickering in the attached video clip, and it turns out it was the bit depth.
Switching from x264_8bpp encoder to x264_10bpp resolved the issue.

Is it my LCD display that causes this issue?
If both video clips look normal on your end, or both are flickering, then maybe the issue is bit depth support?

Edit: Finally resolved the issue by changing chroma subsampling to i444
Edit: The issue is gone, 8-bit i420 video now renders correctly. The culprit was the previous direct show output on MPC-HC.

[Bumblebee 9337]

For some reason, videos with i444 subsampling give wrong dimensions in Windows Explorer. Indicating 1920x1072 when the video is 1920x1080.
I have the Icaros app, so that may also play a role. Thumbnail generation appears normal.

[vlbonnie]

Hello! I want to know if it is possible to do this text effect or something similar.

https://www.youtube.com/watch?v=Ci_zad39Uhw (the first 11 seconds)

Add text. Check "1char1obj." Add Animation effect>Scale coordinate and set the X to go from a lower value to a higher one using Ease out. Then you can add a displacement map with scaling and fiddle with it for better results.

[Joeru-kun]

Hi, does anyone know how to optimize my Aviutl? It starts to slow down when I add effects. It slows down when I edit the video, but it doesn't affect exporting. Is there a special setting for this?
I really want to keep using it all the time.

My laptop is an i5 6th gen, 8GB RAM, and W10.
Aviutl 1.14

[MaverickTse]

Hi, does anyone know how to optimize my Aviutl? It starts to slow down when I add effects. It slows down when I edit the video, but it doesn't affect exporting. Is there a special setting for this?
I really want to keep using it all the time.

My laptop is an i5 6th gen, 8GB RAM, and W10.
Aviutl 1.14

Some effects are heavy, and most of them does not use GPU, so just try to keep effects at minimum.
Another general way is keeping your raw material size (resolution) down.

but honestly, in 2025, you should consider moving to DaVinci Resolve or Final Cut

[Bumblebee 9337]

AviUtl2 Beta versions have been released. Announcement on the AviUtl home website (translated):
I've released a test version of a new tool that combines AviUtl and extended editing functions, rebuilt from scratch.
While there are still some parts that are not fully implemented or compatible due to design differences,
I think it should be able to perform basic editing, so I hope you'll try it out.
*Beta 8 has been released.

[MaverickTse]

AviUtl2 Beta versions have been released. Announcement on the AviUtl home website (translated):
I've released a test version of a new tool that combines AviUtl and extended editing functions, rebuilt from scratch.
While there are still some parts that are not fully implemented or compatible due to design differences,
I think it should be able to perform basic editing, so I hope you'll try it out.
*Beta 8 has been released.

The Good
64bit support, finally
Most LUA-based effect scripts would still work
The NLE is now built-in to the main program, not as DLL plugin
Easier GPU utilization (due to use of 64bit)

The Bad
Still ZERO support on i18n
The plugin community is still scattering around and no initiative to make a central plugin repo. Plugin Hell WILL reappear.

Note that the provided SDK is pretty much empty at this time.

[Bumblebee 9337]

The Ugly
I invested too much time learning to edit with AviUtl to want to switch to another program.
I have Shotcut installed, but have yet to start a major project with it.

[typenull]

having trouble with layer modes (particularly multiply but i think its basically any of them)....
exporting in mp4 wont render layers with multiply properly, making it somewhat brighter instead of darker. exporting in anything else works tho.
this multiply item is against a vignette, but the vignette isn't affected -,- the item just keeps its brightness.

i really have no idea when it comes to exporting so idrk how to mess with my mp4 plugin's settings >.<
using aviutl 1

sidenote i had rendering trouble with vignettes before but i fixed (most of) it by putting everything in a scene and just placing the vignette over it in the main root thing.

[Bumblebee 9337]

When the export video does not match the preview...
Changing the bit depth to 10 resolved an issue I was having in 2023. Changing chroma subsampling to i444 also helped.
Later I discovered that the problem was with the decoder in the media player.

Have you previewed the exported video in AviUtl to confirm that it looks wrong? That is what I should have done before messing with the export settings.

[typenull]

i couldn't play the video when i export in anything other than i420 (at least im pretty sure, the setting in my plugin is called "output color fmt"). Idk how/what setting to change for bit depth or decoder.

yeah, the preview vs export is different. it's just layer effects not rendering.

i'm using x264 export plugin just so yk

[Bumblebee 9337]

It looks like the problem is with AviUtl settings. I've never had to modify those.
Fwiw the 10 bit setting in my 264 plugin is shown in the screenshot. If the checkbox is missing, you may have to select or download an encoder that has a higher bit feature. Sorry I couldn't be of help.

[typenull]

i see. thanks anyway :3