Hi there!
If by vertical monitors you mean rotating your real display, I’ve no direct experience, but it should work; there could be unhandled issues tho.
There are none if your display stay 16:9, but you want to emulate 9:16 games on it.
4k is welcome and everything will look better. Also, 9:16 games will benefit from it because you will be able do disable tate mode and have vertical scanlines without moire.
While the screen “can” be tilted, I didn’t have any luck matching it with my tilted cabinet without screen alignment issues. (Which is why it isn’t included in my pack.)
The tilt code HSM uses in the Mega Bezel is VERY resource hungry. I’m sure kokoko used something leaner.
Maybe a custom bg over would look better? without a bezel. like those old school overlays by Orionsangel.
I’ll magic something up and include it in the upcoming release.
I will update some of the handhelds with my newer graphics as well.
You can check out OrionsAngel’s Assault Overlay preset I did with koko-aio. It takes a combination of Tilt settings and Global Offset
DO_CURVATURE = "1.000000"
GEOM_WARP_X = "0.300000"
GEOM_WARP_Y = "0.560000"
DO_BEZEL = "1.000000"
BEZEL_INNER_ZOOM = "-0.419000"
BEZEL_FRAME_ZOOM = "-0.616000"
DO_GLOBAL_SHZO = "1.000000"
GLOBAL_OFFX = "-0.031500"
GLOBAL_OFFY = "-0.102000"
GLOBAL_ZOOM = "0.936000"
DO_ASPECT_RATIO = "0.000000"
ASPECT_X = "8.000000"
ASPECT_Y = "9.000000"
DO_GAME_GEOM_OVERRIDE = "1.000000"
GAME_GEOM_ASPECT = "0.875000"
GAME_GEOM_VSHIFT = "1.012000"
GAME_GEOM_ZOOM = "0.730000"
DO_TILT = "1.000000"
TILT_X = "0.230000"
TILT_FOV = "0.100000"
TILT_BEZEL_K = "0.570000"
bg_over = "cab_tan_full.png"In the past there were a second parameter to align the bezel, but now it is gone because it is automatic.
I think this was fixed some commits ago but not yet in retroarch release.
If you guys are already using the dev vesion, how can I reproduce the misalignment?
@hgoda90: indeed, TILT_FOV and TILT_BEZEL_K were gone because useless. I hope it is really the case 
Also, be warned, that auto fake integer scanlines does not take tilting into account, so moire is VERY likely to occur at 1080p if you don’t force them on, which seems to be a good idea anyway, since i suspect/speculate even 4k would struggle to produce a clean picture.
I haven’t tried with the dev version. I’ll let you know how it works when I get home.
Fantastic! you might already know this, but 90 degrees and 270 degrees games require different tilt parameters, like in “dkong” vs “1943”.
Oh my bad, I’m still using the RA version.
Changing the presets settings around, Tilt seems to be fine on it’s own without the other settings.
GEOM_WARP_Y = "0.140000"
BEZEL_INNER_ZOOM = "-0.514000"
BEZEL_FRAME_ZOOM = "0.000000"
GLOBAL_OFFX = "-0.029000"
GLOBAL_OFFY = "-0.056500"
TILT_X = "0.170000"
ASPECT_X = "13.000000"
ASPECT_Y = "14.000000"
GAME_GEOM_ASPECT = "0.930000"
GAME_GEOM_VSHIFT = "0.030000"
I have an issue with all of my presets concerning the tilt parameter.
The more I tilt it the more vertically misaligned the screen gets.
Turns out the culprit is my use of the “BEZEL_FRAME_ZOOM” parameter.
Also turns out that I may no longer need it since the Global Zoom was added in.
Correct me if I am wrong @kokoko3k but it looks like “BEZEL_INNER_ZOOM” has also been automated.
Some change since I created the pack has also messed with the zoom on my “bezel_003” presets. (The dual bezel.) I will have to go through and load all my monitor presets to be sure they aren’t affected.
I need to eliminate those two parameters from all my presets, and add in Global Zoom parameters.
Should be fairly simple because of my boilerplate.
Looks like this update will be bigger than I thought. 
Thanks, nice catch!
Assuming dev version:
BEZEL_FRAME_ZOOM and BEZEL_INNER_ZOOM are meant to align monitor frame reflections to content, stop, I may modify the label to be more descriptive.
They should not be used to zoom, and no, inner zoom is not automated.
They are not fixed values just because one can modify the frame png and need to align it.
I tried to tilt and modifying bezel frame zoom and indeed there’s a problem: Problem is not frame zoom, but inner zoom, it has to stay to 0.0 to keep content/frame alignment with tilt enabled.
I may completely remove it and just use Frame zoom, modify its label to “Frame/reflection alignment” so that one have to rely to global zoom (as in the screenshot) for the rest.
Objections?
Sorry for the trouble!
I only use inner zoom for two things: to add black bars around content, or to properly align the image with straight bezel on + curvature off, as this combination tends to hide more image under the bezel:
DO_CURVATURE = "0.0"
BEZEL_USE_STRAIGHT = "1.0"
DO_CURVATURE = "1.0"
BEZEL_USE_STRAIGHT = "0.0"
No need!
To modify game geometry, so zooming out too, you should use the controls under “override content geometry”.
To align bezel reflections, you could instead modify the frame zoom (instead of inner zoom, likely to be removed), and then operate on global zoom.
Alright I’ll update all my presets in preparation for inner zoom removal, I’ll use frame zoom instead.
I just made the change.
To recap:
I think this is all, @estefan3112, this may interests you too.
Lately I’ve been working on something something similar to “dot crawl” observed in NTSC signals.
I remember that effect, but I always used PAL systems, so this is a bit a mystery to me.
BTW, it manifests as color fringes going relatively fast down the screen on zones where color suddently changes in chrominance along the x axis:
But the effect is better observed in motion, so you may want to look to Presets-4.1/tv-pal-my-old.slangp preset or manually activate it via:
Another improvement among shitty signals things is the RF noise, which gained another parameter, Snow noise:
…I don’t know if it is the correct term, but what it does is producing a more rarefied, more sparkling noise.
The old one has been renamed to “uniform noise”, instead.
Again, the effect is really not visible with a screenshot.
None that I can see.
It appears my inexperience with your shader has created a bit of work for myself. 
I will get this update done ASAP but I think I’ll wait to release it until the Retroarch version of the shader is updated to align with the Dev.
Always read the docs! 
