[SOLVED] lr-genesis-plus-gx core has vertical scanline effect with crt-pi.glsl shader

[sonicsheppard]

Hello,

After some recent binary updates I have noticed a very strange issue, the lr-genesis-plus-gx Mega Drive core is displaying very noticeable vertical scanlines when using the retroarch crt-pi.glsl shader, rather than horizontal. I've not tried every other core, but the others I have tried (lr-picodrive, snes9x, pcsx-rearmed) don't seem to be affected, only lr-genesis-plus-gx so far.

Is anyone else seeing this issue? I tried it with crt-pi-vertical.glsl in case it had somehow been reversed, but same affected.

Pi Model or other hardware: Raspberry Pi 3
Power Supply used: 5V 3A usb mains power
RetroPie Version Used : 4.3.3 fully updated.
Built From: Made from 4.3 img from RetroPie, but fully updated as of today.
USB Devices connected: Wireless Rapoo T-series keyboard, HyperX USB flash drive, Logitech Bluetooth dongle.
Controller used: Wii U Pro (Bluetooth)
Guide used: https://retropie.org.uk/docs/Genesis-Megadrive/ and https://retropie.org.uk/docs/Shaders-and-Smoothing/
File:/opt/retropie/emulators/retroarch/shader/shaders/crt-pi.glsl
Emulator: lr-genesis-plus-gx

How to replicate the problem:

Fully update RetroPie-Script to 4.3.3, update RetroArch and lr-genesis-plus-gx using Binary.
Boot Mega Drive roms - tried with Mega Bomberman and Sonic 3 & knuckles.

[sonicsheppard]

Please ignore this - I found out what the problem was, I'd turned on Shader #0 Filter to LINEAR. That is what was causing this effect in lr-genesis-plus-gx.