I can’t speak for everyone else, but I’m guessing that if people are using overlays with Mega Bezel it’s so they can change them out by selecting a new one and without having to have any technical knowledge of how the shaders work… but the shader method would give you a lot more versatility as to positioning the image, and options, etc… Is there a good tutorial for this if people want to learn how to change them out?
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This bit might be a good start
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Sorry to bother but I’m so confused, downloaded many different mega bezel packs but I can’t find the preset with the hybrid ds layout with the carbon background. Where is it?
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Welcome to the forum!
The naming has changed since the time that was written, try taking a look here: Mega_Bezel/Presets/Variations/Dual-Screen
If you don’t find what you are looking for can you post an image of what you are trying to achieve?
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Basically this but the DS, does that exist? Just the cool Mega Bezel for the hybrid Top screen Desmume layout.
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No Hybrid but I have a DS horizontal layout.
There is no reason a hybrid cannot exist. (Even if the core doesn’t support one.) I’ll add it to my todo list for a future project.
BTW. Even though the end result is horizontal, with the Mega Bezel you need to use a top+bottom layout in the core.
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Snes with Mask 11, Flat and Curve… This mask needs to upper integer scanline, because vertical lines will look streched in normal integer… But it looks nice this way, even on 1080p screens… 
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I’m having an issue on Arch. After upgrading to RA 1.12, I’m crashing during shader compilation using Duimon’s presets.
The issue seems to be a missing .slang file due to a shader path change?
Error:
[ERROR] [slang]: Failed to open shader file: “/usr/share/libretro/shaders_slang/bl urs/shaders/royale/blur9x9.slang”.
MBZ_3_STD_GDV.slang references that blur here:
// Reduce resolution ---------------------------------------------------------------- // Reduced to a very small amount so we can create a blur which will create a glow from the screen // Mipmap option allows smoother downscaling shader24 = …/…/…/…/blurs/shaders/royale/blur9x9.slang mipmap_input24 = true filter_linear24 = true scale_type24 = absolute scale_x24 = 128 scale_y24 = 128 alias24 = “BR_MirrorReflectionDiffusedPass”
// Add Diffused glow all around the screen ---------------------------------------------------------------- // Blurred so much that it’s non directional // Mipmap option allows downscaling without artifacts shader25 = …/…/…/…/blurs/shaders/royale/blur9x9.slang mipmap_input25 = true filter_linear25 = true scale_type25 = absolute scale_x25 = 12 scale_y25 = 12 alias25 = “BR_MirrorFullscreenGlowPass”
The actual path is: …/…/…/…/blurs/blur9x9.slang
After I make the path change in MBZ_3_STD_GDV.slang the preset works!
@HyperspaceMadness I wasn’t sure if you wanted this type of thing reported on your github, so I started here…
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I couldn’t find any notes that referenced this change…
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Welcome to the forum!
Yeah the blurs were moved in the main shader repo. The latest Mega Bezel matches the new paths.
It looks like you still need to update your main Retroarch shaders by using Online Updater / Update Slang Shaders inside Retroarch.
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Yes, I updated shaders within RA as a troubleshooting step.
Should I not be using Mega_Bezel from your github?
Yes this is fine, both are updated to the latest retroarch shaders repo organization with the blur shaders in the “blur/shaders/royale” folder.
ah, found the root problem… 
[ERROR] Download of ‘shaders_slang.zip’ failed: Write failed.
@HyperspaceMadness have you ever considered making a second git-branch for community pull requests?
I’m sure when path changes like this are made it takes not a smol amount of time to make all the necessary edits! I would, and I am sure there are others who could lend a hand and help out from time to time
We all think you are doing the Lords work here… 
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So if someone wants to contribute to the Mega Bezel they can do a PR to this repo like normal.
About path changes, once you have the slang files updated all the paths should be correct.
I may see about including this blur file with the Mega Bezel package since it is probably the only file not distributed like this.
Is there any difference whether I update my slang shaders from within Retroarch or download the mega bezel package here, unpack it and place the contents in the requisite folder in Retroarch? In short, will I get more shaders if I do the latter? I updated my slang shaders within retroarch, but I’m not sure whether I have all of the Mega Bezel shaders now. Wasn’t there a Guest Venom variant for instance? I cannot find it anywhere in the Bezel slang folder. Thanks for clarifying!
PS using the very latest Retroarch by the way, 1.12
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No there is generally no difference.
Deleting the Mega Bezel package and bringing in a new Mega Bezel package is actually the cleanest thing to do, because the update slang shaders does not clear out old files,so it’s possible that some obsolete files can stick around.
This doesn’t cause a problem for the Mega Bezel package functioning, but it could leave old files around.
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Just so you know. The shaders in the root “Presets” folder “\shaders_slang\bezel\Mega_Bezel\Presets” have names that don’t reflect the parent shader derivative.
The shaders in “\shaders_slang\bezel\Mega_Bezel\Presets\Base_CRT_Presets” do. Every shader with “GDV” in the name is a Guest variant, based on a newer version of the shader. The “GDV-Mini” are a lite version of Guest based on a very old version of the shader.
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Thanks a lot HSM and Duimon!
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I played around with the extra layers and other settings like the hum bar , it now is just slighty fast scrolling …looks really great i would love to show it in a video but anywhere i upload it the hum bar effect just get lost xD anyways i now have an awesome light flicker on it
oh and thanks since i start using this i got lost in retrogames again for weeks now 
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I made a mame Setting. I like it 
What do you think? 
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