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[GH-ISSUE #4383] Missing Graphics on Power Vr using Buffered Rendering #1785
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Originally created by @mckimiaklopa on GitHub (Oct 31, 2013).
Original GitHub issue: https://github.com/hrydgard/ppsspp/issues/4383
Missing graphics or Black screens can experienced when using buffered rendering on Power Vr devices on some games(The ones that I found was on Kingdom Hearts BBS and Dissidia 012)
On Dissidia 012,most stages or anything 3d are showing black screens.The only exception is the Empyreal Paradox Stage where only the background is seen as shown below.
BR on
On Kh BBS,only the 3d effects such as spells,particles water are missing which usually happens when many 3d models are rendered.
BR-on
Using Non-Buffered Rendering makes the missing graphics appear on both games(but has less smoother framerates).Read Frame-buffers to memory also makes the missing graphics appear(on the latest build)but will make everything sluggish.
Non-Br in Dissidia
NON-BR in KH(notice the particles)
I think I read somwhere that tegra 3 has similar issues I think.
@mckimiaklopa commented on GitHub (Nov 1, 2013):
Okay, so i tried build v0.9.1-2300-g60d0f2a(the one where you fixed The FBO and before you reverted it) on my Phone with Power VR SGX 531 and on Dissidia ,the 3d models finally showed on buffered rendering(but many stages where black screens),and KH finally had all effects shown(but graphics were like corrupted or something)
@hrydgard commented on GitHub (Nov 1, 2013):
Okay, so there's something to it at least .... I think yet again we'll have to do different things depending on hardware :(
@mckimiaklopa commented on GitHub (Nov 1, 2013):
Thank you for looking into it even though your very busy
On Fri, Nov 1, 2013 at 5:39 PM, Henrik Rydgård notifications@github.comwrote:
@unknownbrackets commented on GitHub (Jan 25, 2014):
Is this different from #1313?
-[Unknown]
@mckimiaklopa commented on GitHub (Jan 25, 2014):
actually,its nearly the same with #1313 (i'm sorry for making a dupe)
anyways,i made a small investigation and posted it on the forums.
It is here http://forums.ppsspp.org/showthread.php?tid=8479
@unknownbrackets commented on GitHub (Jan 25, 2014):
Okay, I'm going to close this as a duplicate and repost that link there.
-[Unknown]
@mckimiaklopa commented on GitHub (Mar 11, 2014):
I was the one who submitted the multithreading issue on broadcom on github
thrice.
Well, i think you might wanto to learn some knowledge on how this gpu works
and how it handles multithreading.
So here attached in this mail is an official documentation of the said gpu.
Pls read it