NTSC is a little too simplified

(Sorry about the gif quality)

Back in october, the NTSC/VHS filter was simplified and made more predictable. Problem is, it's too predictable. There should be an adjustment where there's more of a sense of random movements and also (more importantly), bars of static going up and down the video clip.

Examples of what I had in mind:

[esmane]

Like this?

vhsdistortion.mp4

The problem with these effects (and the reason I got rid of them and simplified the filter) is that they don't animate well and don't always work together in the way you'd expect. This sort of VHS noise completely destroys the v-sync signal and causes the picture to roll across the screen. I didn't like this effect, especially because it couldn't be animated (personally I just use it to stylize a video to look like it was originally recorded on tape) and much preferred the single noise slider that lets you destroy the signal in a general and predictable way. But I can work on the effect some more and try to find a balance for these effects if this is really what people want.

P.S. You can always try an overlay if you want to add those bars of static to your video.

Like this?
vhsdistortion.mp4

The problem with these effects (and the reason I got rid of them and simplified the filter) is that they don't animate well and don't always work together in the way you'd expect. This sort of VHS noise completely destroys the v-sync signal and causes the picture to roll across the screen. I didn't like this effect, especially because it couldn't be animated (personally I just use it to stylize a video to look like it was originally recorded on tape) and much preferred the single noise slider that lets you destroy the signal in a general and predictable way. But I can work on the effect some more and try to find a balance for these effects if this is really what people want.

P.S. You can always try an overlay if you want to add those bars of static to your video.

Do you think perhaps a second effect be made for the "static bars" that I was aiming for? Something that would be separate from the current one?

[esmane]

Maybe, but I think a single extra toggle in the effect for "VHS Type Noise" would be a better solution. I'll keep working on it and see what I can come up with. Previously I was using the VHS effect from the original NTSC simulation my effect uses but I'm sure there's a better way to go about it.

I was exploring through the other frei0r filters, and found the "Nosync0r" one that emulates a broken TV.

untitled.webm

It makes the shake effect being integrated into the signal noise scale redundant. Double so because you can adjust the nosync0r one very flexibly. I guess that should be removed because you already have at your disposal nosync0r?

[esmane]

nosync0r just moves the picture vertically depending on the parameter set. It can be useful, but it is a different sort of effect and in my opinion it's existence not a reason to force vertical sync in the NTSC filter. However, I could add it as a parameter. Currently vsync is set with a #define, so it would need to be made into a variable

Here's how I would have done it. Taking glitch0r as inspiration.

There would be 4 variables:

1. Shaking (Could possibly be either a bool or float scale)
2. Static Variety (How random the types of static is, could be like 4-5 different types and a variety of sizes, similar to the gifs posted above).
3. Static Rate (How frequently the static is generated).
4. Anything else you feel like having.

In my opinion, giving the user more choice over the variables makes it look more authentic.