ZZogl -- Zero GS KOSMOS fork

[Zeydlitz]

O'k. If you don't mind, try to fix by messing-up with constants.

In zerogs.cpp, in function SetTexVariablesInt there is code:

v.y = 1.0f;
v.x = (fpageint-(float)pmemtarg->realy/(float)pmemtarg->widthmult+0.5f);//*v.y;
v.z = (float)texwidth;

if( !(g_nPixelShaderVer & SHADER_ACCURATE) || bUseBilinear ) {
if (!PSMT_ISHALF(tex0.psm))
v.w = 0;
else
v.w = 0.25f;
}
else
v.w = 0.5f;

cgGLSetParameter4fv(pfragment->fPageOffset, v);

It's bilinear settings, you could play with v.w and v.w a little. Try to change v.w to values such as -0,5, +1 etc. Mainly, this code is o'k, but a big unperfect.

[chuuey]

wow, you are right, I had anisotropic filtering set to 16x, in the control panel, I had no idea this does affect OpenGL though o.o nice find!

[Zeydlitz]

Nice :-).

[chuuey]

here's how it looks now :



a word on performance : Persona4 is around 20 fps, i'm quite surprised cause GSDX in software mode in the same spot does around 35fps, but still i'm glad we managed to get it running i guess more optimisation will improve this

[Zeydlitz]

Try to change scene, it could be interplugins save/load trouble (when loading in other plugin than save performance degrade is usual). And try to compare with ZeroGS DX, it could told a little more.

p.S. And debug version is known to be slow.

[chuuey]

well i'm running the release version of course, tested also with FFXI, appears some objects have texture issues like here :



going to test with other titles

also there appears to be some kind of a flickering boarder at the top of the screen as you can see in the shot

[Zeydlitz]

Try to compare with ZeroGS OGL, please! It could be my error, and in that case I eager to know it -- I don't want to increase errors.

p.S. In FFX there was a bug with battles, I

[chuuey]

it's exactly the same thing for ZeroGS OGL with FFX just tested, with the textures

[arcum42]

wow, you are right, I had anisotropic filtering set to 16x, in the control panel, I had no idea this does affect OpenGL though o.o nice find!

No problem. I remember how much it drove me crazy 'till I figured it out...

[kebrus]

wow, i really can't compile this, while i can compile zerogs this one gives me a ton of error, some he's trying to get files in strange directories (like 4 directories above him)...