Hello,
Any suggestions on a shader or combination of shaders to producing SNES pixels the way a Super NT displays them @ 1080p?
I’ve tried the pixelate shader @ 5x scale and it’s still too messy looking. Bilinear filtering is too soft. I tried crt easymode while setting the mask and scan line strength to 0.00 and playing w/ the vertical and horizontal sharpness. It’s a happy medium but not quite where I want it.
Thanks,
You’ll have to be a little more specific about what you’re looking for. That is, the Super Nt doesn’t do anything special to its output, but I can’t really discern from your post what exactly you’re trying to achieve.
Sorry, for not being very specfic. I just start experimenting with shaders for the SNES. I guess I wanted to see what other shaders and settings people are using @ 1080p w/o scanlines. I love scanlines but it seems unnatural on a 55’ lcd screen.
I guess I would like framemeister type image. I here shaders like GTU, sharper-bilinear, aann are nice but not sure what settings to tweak.
AANN and sharp-bilinear are pretty much good to go by default. If GTU is too blurry for you, you can increase the resolution parameters to sharpen it up.
Also, scanlines will always look weird on 1080p screens unless integer scaling is enabled. Crt-easymode looks better than most at non-integer scales but just like the Super Nt, you can set the aspect ratio in settings > video to ‘custom’ and set the Y scale to 5x and the X scale to 6x. This gives a roughly 4:3 image with even scanlines. You lose a few pixels on the vertical axis but it’s well within the “safe area” that games typically used to anticipate variation in home TVs’ overscan.
Thank you I’ll start from there.
I actually do have a decent integer scale scanlines shader w/ 5x and 6x scale with ntsc colors for the first pass and crt geom for the second.
Does haven bilinear filtering on or off have any effect on any of the retro shaders? It seems like AANN, pixellate, and sharper bilinear look the same. Do I have to change the scaling values or change to nearest or linear?
I think I’m liking ntsc colors at 1x w/ quilez or smoothstep for my “clean” non scanlines shader.
Thanks again.
Filtering can indeed affect shaders, but it’s usually a pretty obvious difference if it matters at all. I think AANN and pixellate both require nearest, while sharp-bilinear requires bilinear…?
I am also a big fan of smootheststep for sharp pixels.
I was using the reverse anti-aliasing shader for a while on my 55inch LED. Seemed like it looked pretty good. Personally I also disable bilinear filtering in the video options. I feel like it makes pixels sharper for sure.
Just to chip in, I’m pretty happy with the 5x overlay scanlines on Lakka RPi3
aspect_ratio_index = "22"
custom_viewport_height = "1120"
custom_viewport_width = "1536"
input_overlay_enable = "true"
input_overlay_opacity = "0.250000"
input_overlay = "/usr/share/retroarch-overlays/rpi/scanlines1920x1080-5x.cfg"
video_scale_integer = "true"
video_smooth = "false"
I get this:
