It won’t trigger anything like that on my end, Windows 10 - RA version 1.9.14
(usually i test it a little bit before posting)
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I went ahead and tried it on the same game and I get the same results, it happens when I go for the cool or warm temperatures:
Could it be because of Retroarch versions? Do you get a clean image on Android as well?
Does it happen even if you change temperature a little like 10.0, does it happen with all other masks, or if mask is -1.0?
Yes it does, it happens the moment I switch it to 5.00 on either side and on every mask. I went further and toggled every other parameter left and right just to see if anything would change and it nothing changes
Same behaviour on my Android too. I’ll see if i can fix that.
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Good thing Android has that “Watch shaders for changes” hehe, so after you connect you can change something on the fly.
fixed with
comp=clamp(comp,0.0,1.0);
download and check again
https://mega.nz/file/DiJTgKQT#fl8IbwTCpcf56ckESBPoRXGRS8RVHGtk9gafmrTaSDQ
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Yup, that did the trick right there, temperature works the way it should now. Would it be possible to add in bloom, interlace mode and the interlace trigger resolution from guest as well?
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Test this and tell me what you think. Interlacing mode-switch and improved glow.
https://mega.nz/file/DrIGibhC#ebAHnkT5Swjd8BsY5qraUXL6AA4mmGhODenjHAfnhGs
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Nice, this is shaping up to be a nice little shader here. One thing I noticed about the interlacing, when it’s toggled on it creates this moire like pattern as you can see here in the white background:
At first I assumed it’s because I’m using curvature but then I toggled it off and the moire like pattern dissapears:
I took it a step further and tested the interlacing with the curvature turned off and the moire like pattern still shows like so:
With curvature still turned off I also tested it with the interlacing turned off and the moire like pattern dissapears again:
That also happens on all masks as well.
Other than that I’m liking how this shader is shaping up:
It’s making me want to play some Saturn on the Yaba Sanshiro core once again lol
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Probably happens because I didn’t adjust the warp too for interlacing.
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Be sure to click on the images and click “Load Full Resolution” if you want to experience what I’m really trying to convey with these screenshots!
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I’m trying to make a preset for Amiga games that looks Commodore Monitor… -ish? I’m not sure I’m succeeding. 
Using crt-guest-advanced-hd (from https://forums.libretro.com/t/new-crt-shader-from-guest-crt-guest-advanced-updates/25444) for this.
#reference "../../shaders/crt-guest-advanced/crt-guest-advanced-hd.slangp"
interm = "0.000000"
glow = "0.250000"
bloom = "0.100000"
halation = "0.050000"
brightboost = "1.350000"
gsl = "1.000000"
shadowMask = "8.000000"
maskstr = "0.700000"
maskLight = "1.200000"
mshift = "4.000000"
deconrr = "0.750000"
deconrg = "0.250000"
deconrb = "-0.500000"
deconrry = "-0.250000"
deconrgy = "-0.500000"
deconrby = "0.750000"
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Nice screenie! The HD version is also very simple to use with hires mode. You can just increase the (shader) internal resolution, more tweaks can me made afterwards.
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Not even sure what it does. It seems to give a weird blur.
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…yeah you don’t increase it if you don’t need to. Otoh you can have nice filtering in the pixel resolution is doubled etc…which can happen to most amiga games if using hires.
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Here is an example how to use the ‘internal resolution’ feature with the hd version. One of the benefits it has is also a fully capable vertical resampler.
Castlevania (PSX), 3x res, xbr texture filter:
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My attempt on a Commodore 1084-S look, using Magenta-Green-Yellow-Blue mask and pushed by Guest.r slot-mask.
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looking good! Would you please share this 1084-S preset? 
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That’s a very strange mask, I’m not sure I understand the rationale behind it.
Do you have a good photo of a 1084-S for reference?
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Actually that mask was a mistake, but if you use mask 0 and slot mask width 2 height 2 iirc, should be about the same and integer 4 x so scanlines align correctly or height 1 to align always
Photo here
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