hrydgard
Armored Core Silent Line Portable: flickering, likely lens flare-related
Game or games this happens in
NPUH10025_1.00
What area of the game
It happens in the level called Escort Transport. It's more less the third level of the game.
What happens
The screen starts flickering in weird ways. The flickering is not constant and isn't the typical black flashes flickering. The UI of the game also starts bugging out when the flickering happens. I have noticed that the level has a lens flare effect and the issue seems to happen when said effect is visible on screen.
What should happen
The screen should not flicker like it does.
GE frame capture
Platform
Android
Mobile phone model or graphics card
Realme GT2
PPSSPP version affected
v1.15.4
Last working version
No response
Graphics backend (3D API)
Vulkan
Checklist
- [X] Test in the latest git build in case it's already fixed.
- [X] Search for other reports of the same issue.
- [x] Try resetting settings or older versions and include if the issue is related.
- [X] Try changing graphics settings to determine if one causes the glitch (especially speed hacks or enhancements/replacements.)
- [x] Include logs or screenshots of issue.
Yeah, might be some readback trick going wrong.. Here's our collection issue for lense flare effects: #15923
Frame captures are probably not gonna do much good here, but save states might.
This might work now if you set "Lens flare occlusion" to Always on. Can somone test this? In that case I'll just enable it by default for this game.
I can try, but that setting isn't available on Android, is there any way I can test it?
should be available in the latest APK from https://www.ppsspp.org/devbuilds/
though I haven't checked that it works on Android yet admittedly :)
Awesome I just tried it. It definitely helped a lot since there's no more white flashes. Still, some times there are little black flashes (one or two, so definitely not as bothersome) and sometimes along with these ones the HUD goes white for a few milliseconds.
Okay, well that sounds like a good improvement at least! I guess we can't close this though, since that black flash problem sounds related (although it might also be something else..)
What's the difference between on and off? Should it be better to just let it on auto?
Auto will enable it for the games we know it works on, as specified in compat.ini. Once I've added Armored Core to the list, that's the setting you want.
Just to be sure, what's the game ID of your ISO? (you'll see it by pausing and pressing the info buttton ("i" in a circle), it'll look something like UCUS98606).
Hm, I think it's more likely to be NPUH10025 (which I found here: https://gamefaqs.gamespot.com/psp/960305-armored-core-silent-line-portable/data). I'll add that to the list soon, until then just use Always On.
This issue also occurs on AC3 Portable, also with OpenGL backend. Tested lens flare occlusion on Auto, Low, and Off (just to check) and not really noticing any major differences. Seems to flicker a bit randomly but mostly stays darkened while in gameplay
@buymyhubs likely because we only enable "lens flare occlusion" (which really is a software renderer that fills just the Z buffer) for a set of games where we know it helps (because it's a CPU performance eater that we really only want to have enabled when needed). However you can force it on by setting DepthRasterMode = 3 under [graphics] in PSP/SYSTEM/ppsspp.ini .
If that helps, I'll add an entry to compat.ini under [SoftwareRasterDepth] that allows it to be enabled in Auto/Low modes.
@buymyhubs likely because we only enable "lens flare occlusion" (which really is a software renderer that fills just the Z buffer) for a set of games where we know it helps (because it's a CPU performance eater that we really only want to have enabled when needed). However you can force it on by setting DepthRasterMode = 3 under [graphics] in PSP/SYSTEM/ppsspp.ini .
If that helps, I'll add an entry to compat.ini under [SoftwareRasterDepth] that allows it to be enabled in Auto/Low modes.
Thanks for the quick reply. I did this and confirmed Lens flare occlusion showed "Always on" in the GUI after. I'm not sure if it's placebo, but it may have marginally improved the issue? I would say it's still hard to play the game like this though
On second look, I think this issue is related to #11430 and #10726 more than this one. I'm not experiencing the white flash like in the attached video