That trigger setting is the vertical resolution at which interlacing will be activated. Those patterns are probably due to a scaling mismatch. On reshade, you need to configure the scaling of the shader manually. For most ps1 games, X axis should be the horizontal resolution of your screen (2560, 1920, etc) and Y axis 240. For 1080p:
PreprocessorDefinitions=Resolution_X=1920,Resolution_Y=240
Just popped an update in the main Guest thread; but to be honest its probably more suited here given that its related to Reshade.
In any case; I donāt want to just dupe the post - but hereās a link: New CRT shader from Guest + CRT Guest Advanced updates
thanks! and if you forget about
then this a reminder 
it was ok for me so better to be added in the next update
I have an interesting issue in Chained Echoes which will be in part to do with the way the game works - but, with Guest-HD on in Reshade, the assets wobble when you move the character. I assume itās something to do with how they have placed pixel art assets on top of their pixel art backgrounds. If you turn Guest-HD off, the assets donāt move and just look like part of the static background.
Iāve changed a bunch of settings to see if it makes a difference but so far the only thing stopping it is turning off the shader altogether.
This doesnāt occur with other shaders in Reshade like Hyllian, FakeLottes etc
Hey thereā¦ Maybe try to tweak with āHigh Resolution Scanlineā set to 1, or āInterlacedā OFF, as the wobble may be due to resolution downsizing or interlaced treshold res I guess.
Thanks - I did try those but it hasnāt seemed to had an effect.
I definitely think itās a scaling issue somewhere - Iām noticing diagonal lines are skewed when the shader is on. Iāll add example pictures later
I guess there may be some dithering patterns in the pixel arts that could also cause some moire effects with the scanlines when theyāre moved? I dont have the game so, yeah cant really helpā¦
Increasing the width resolution to the native of the screen helps with some of the distortion; the game runs at 640x360 and multiplies itself to 1920x1080; so going 1920x360 corrects some issues.
This is raw pixels:
This is with Guest and Reshadeās resolution set to 640x360 - notice the skewed diagonals on the top border; and the gold border on the side of the box at the bottom has been āoverwrittenā with blue:
Changing Reshade to 1920x360 solves the border issue but the diagonals still arenāt perfect:
This doesnāt fix the wobbly assets but itās not a huge issue; more a curiosity. It still looks great!
This is Guest-HD, Mask 10/Size 1/Zoom -1/Preserve Mask and Scanlines at 0.85
Seems some pixels in the raw images are taller than squares, could indicate a native res that doesnt fit with an integer scale at 1080p. So yeah, diagonals looks already skewed in the raw image. Are you sure itās 640x360?
Thatās what PCGamingWiki says; otherwise Iām not sure how else I can find outā¦
EDIT: Reshadeās statistics say 640x360 when you set the window scaling in game to 1x
Odd; theyāre like a pixel-and-a-half in size. I think the game was made in Unity and I have heard it can produce some issues with pixel art. Oh well, nothing to be done! Applying CRT shaders/using actual CRTs for modern games is always going to be a bit of a crap shoot
I mean, the added grain and texture of the shader you added still makes it nice to look atā¦ Maybe try to tweak the ārolling scanlinesā parameter to see how it interacts with the wobble?
I did update CRT-Guest-NTSC.fx to crt-guest-advanced-2025-11-30-release1 https://github.com/Jobima1st/CRT-Guest-ReShade (I also did add the Aspect Ratio changes that DevilSingh post before)
only CRT-Guest-NTSC.fx for now, maybe I will update the DX9 CRT-Guest-NTSC.fx later
to avoid wasting my efforts, I wonāt update the rest. I made the update primarily for my personal use and not as a full replacement of DevilSingh port
