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    • T

      Are the Pi CRT shaders intended for use with bilinear filter?

      Watching Ignoring Scheduled Pinned Locked Moved Help and Support crt shader shader sharp
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      dankcushionsD

      as far as i recall the shader preset includes bilinear on/off, so you should not touch it and let the preset decide

    • sad_musoS

      Shaders 101

      Watching Ignoring Scheduled Pinned Locked Moved Help and Support shaders crt shader scanlines curvature framerate
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      dankcushionsD

      @sad_muso you didn't say what emulator you're using. afaik even simple shaders are often very system bus intensive, so they're constantly fighting for bandwidth with the GPU, CPU, etc. afair, lr-genesis-plus-gx really hammers the system bus, so try using lr-picodrive instead, if you're using the former.

      Are they CPU/RAM intensive or both? Does the Pi 4 cope with shaders better than the 3 B?

      first part answered above. pi 4 will cope better.

      Do overlays cause any hit on performance, specifically when used in conjunction with shaders?

      yes, for whatever reason they seem to.

      What is the least expensive way to implement curve and scanlines that is currently in existence?

      the way you're doing it already - z_pi_crt.

    • M

      Crt Shaders Button On/off?

      Watching Ignoring Scheduled Pinned Locked Moved Help and Support crt shader arcade retropie cabinet display buttons gpio
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      RionR

      Better late then never I suppose

      https://github.com/libretro/RetroArch/pull/14628

    • RedBatmanR

      Recommend a good CRT filter that doesn't dark the picture too much.

      Watching Ignoring Scheduled Pinned Locked Moved Help and Support crt shader scanlines retro
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      davejD

      Many shaders include options to alter the effects they produce, including brightening the picture. Have you tried investigating that? Details for crt-pi on what you can change and the easiest way to make those changes.

    • M

      Pi 3 overheating with CRT Shader

      Watching Ignoring Scheduled Pinned Locked Moved Help and Support overheating temperature shaders crt shader raspberry pi 3
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      WerewolfW

      @Marinho Great thread, thanks for the info. I've been noticing the same thing here. Playing with shaders causes the system to run really hot. I thought it was just cause I was playing PSX games. But when the thermometer started showing up with SNES games I knew something was up.