09-27-2016, 10:09 AM
There are various texture cache issue like R&C actually. The bad color is a random texture data. Could be a core bug too or maybe a wrong palette upload.
Graphical bugs when running Jak 3 on software mode
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09-27-2016, 10:09 AM
There are various texture cache issue like R&C actually. The bad color is a random texture data. Could be a core bug too or maybe a wrong palette upload.
09-27-2016, 12:27 PM
Texture cache, of course. That doesn't sound good.
09-27-2016, 01:42 PM
I merge a branch that fix some issue on palette management. Maybe you could give a quick trial. Unlikely to fix anything but you know sometimes it happens
09-27-2016, 07:41 PM
09-28-2016, 12:00 PM
Well it is complicated. I will try to look later after some mipmap stuff.
09-28-2016, 07:47 PM
See latest post
https://github.com/PCSX2/pcsx2/issues/1561 I have a proof there is some bug in the texture mapping on mipmap stuff.
09-28-2016, 08:00 PM
So maybe this was not texture cache related?
Here the visual of the bug.
So the game does a copy of the palette with a draw call (aka GS write). On the right you have the input texture. On the left panel (top left corner), you have the blitted palette which ough to be a copy. On HW: * We don't support GS write to the palette. Multiple games are affected, it would be nice to find a solution or maybe a way to invalidate the texure (potentially with a hack) On SW: * as you can see, there is a rounding issue, the palette seems to be shifted by 1 pixels. Edit: the block is 16x16 pixels. And texure coordinate range from 0 to 1. Which I think is translated to [0;16] range (17 texels) and GS rounding will likely take only 16.
09-29-2016, 10:55 PM
Is it the only jak affected?
09-29-2016, 11:20 PM
Jak II has the same issue, but it is less noticeable.
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