Ppsspp: Tactics orge on powervr is Pixelated/Blocky 2D in-battle sprites ( regression)

Created on 27 Dec 2016 · 20Comments · Source: hrydgard/ppsspp

screenshot_2016-12-26-20-26-52
screenshot_2016-12-26-20-26-48
screenshot_2016-12-26-20-26-44
i choose to render resolution 2x and upscale 2x, and the blurred not fix on powervr

PowerVR GPU

Source

zminhquanz

All 20 comments

I think we've seen this before, some weird texture coordinate precision issue... seems to only affect PowerVR indeed.

hrydgard on 27 Dec 2016

And this game even on PC Windows , sometimes it's slow down

zminhquanz on 27 Dec 2016

Regression from #7150 , bug is appear again on 1.3.0.1 @hrydgard

zminhquanz on 4 Jan 2017

@hrydgard you can mention this issue

zminhquanz on 11 Jan 2017

was the pixelated issue for Tactics Ogre fixed? im using Asus zenfone 5, set to buffered rendering. When i switch to Read Frame Buffers to mem (GPU) the pixelated issue is gone, but it is slow

lokifrit on 25 Jan 2017

@lokifrit is doesn't fixed that , i think it's a regression

zminhquanz on 30 Jan 2017

what do you mean by regression? sorry for my ignorance

lokifrit on 30 Jan 2017

regression means that something got worse since the last release, for example.

hrydgard on 30 Jan 2017

oh okay. i tried versions 1.3 and 0.9. I noticed that final fantasy tactics has the same behavior.

lokifrit on 30 Jan 2017

I believe the issue is that the game has a texture matrix enabled, which cause us to perform texture projection (including division), which unfortunately works horribly badly on older PowerVR due to a lack of precision in fragment shader calculations. I don't think the division is actually required, so one way might be to hack around it, another to detect in the texture matrix that no projection will be needed. I think I might try the second..

hrydgard on 30 Jan 2017

👍1

is there any other phone model that doesn't have this problem?

lokifrit on 30 Jan 2017

Yeah, nearly all of them. Anyway, pretty sure #9258 will solve it.

hrydgard on 30 Jan 2017

@hrydgard so this only happens to older phones?

lokifrit on 30 Jan 2017

Yes, older PowerVR-based phones. Haven't seen or heard about it happening in any others.

hrydgard on 30 Jan 2017

👍1

Merged the fix (although I haven't actually reproduced the issue, only verified that things still work). Please re-open if issue remains in future builds.

hrydgard on 30 Jan 2017

🎉1

@hrydgard it seems regression , i update 1.4 on ASUS Zenfone , it still doesn't fix , so reopen this

zminhquanz on 5 Apr 2017

This still happens on 1.4? Does it still look like the screenshot at the top of this thread?

hrydgard on 5 Apr 2017

Yes it does , there is have the same issue , blocky vs pixelate graphics
screenshot_2017-04-05-17-55-29 1
screenshot_2017-04-05-17-55-52 1