Reply To: How to get scanlines and vastly improve picture quality: the best method

[patrickm]

[quote=94021]What i found really interesting from author of this post is that I also found crt caligari and crt hyllian lq best crt shaders for pi.
Therefore i think they are a little demanding for the systems now, so i switched for scale2x shader. This is a shader i suggest, not heavy and add a little more resolution feeling to games, without blurry them. Give it a try[/quote]

Actually, I wasn’t referring to crt hyllian lq, although that one is pretty decent.

You should check out the shader in /shader/crt/hyllian-glow/hyllian.glsl or something like that. There is another shader called “hyllian.glsl” in the main shader directory that causes significant slowdown/stutter, but the one in the /shader/crt/hyllian-glow/ directory looks almost identical and runs perfectly smooth! It’s confusing because both shaders have the same name, but are located in different places and are actually different shaders.

If I had to rank the shaders, my “top 5” would be:

1. crt-hyllian-glow
2. crt-caligari
3. crt-hyllian-lq
4. sharp-bilinear-scanlines w/bilinear filter
5. ntsc-pass-4 w/bilinear filter

I should mention that I’m running this on a Raspberry Pi 2, but I assumed that this wouldn’t make a difference since it has the same GPU as the Pi 1. I’ve chosen the “Pi 2” overclock setting and set GPU memory to 256mb.

Personally, I would avoid that scale2x shader as it doesn’t correct scaling on the x axis which means you get inconsistently-shaped pixels, nor does it produce scanlines.