Now, a note about the actual issue. Destination alpha tests can be used on the GS as one of the workarounds for a lack of stencils. If you use a destination alpha test and leave alpha writing on, the GS will only write each pixel until you write an alpha value which would fail the test. This works to a point in gsdx without further hacking, but that point is when within a single batch of primitives the same pixels are written multiple times and the destination alpha test is expected to update. I did experimentally make a tight loop updating the stencil with a draw then drawing for one primitive at a time, but it was prohibitively slow (over 80% fps loss, you really don't want to know).
Destination alpha testing cannot be directly implemented in D3D9 or D3D10, but (probably) can in D3D11 (with a speed hit for sure, but I doubt it'll be 80%). I'll be getting a new graphics card and looking into that.
And before some idiot says it, the answer is no. OpenGL does not help.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5346 96395faa-99c1-11dd-bbfe-3dabce05a288
Another refinement to the Wild Arms hack by KrossX.
The hack now only applies to one kind of geometry (sent using the unpacked UV handler).
This works nicer in Wild Arms as it fixes "jumpy" characters.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5124 96395faa-99c1-11dd-bbfe-3dabce05a288
The problem as I understood is is incomplete COLCLAMP support.
Thanks to sudo for the hack :)
(Unfortunately we couldn't find out more about why these FMV also *all* flicker.)
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@4837 96395faa-99c1-11dd-bbfe-3dabce05a288
32-bit depth buffers for D3D9 users if available. Lots of code shuffling for reasons I don't even remember. Stuff. Pretty much just the 32-bit depth buffers. That's good though, you don't have to envy D3D10 users half as much now.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@3002 96395faa-99c1-11dd-bbfe-3dabce05a288
- Moved the offset hack to CreateSource(), it can work a bit more selectively there.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2714 96395faa-99c1-11dd-bbfe-3dabce05a288
GSDx: Removed discards from partial colclamp support as it wasn't doing much good and definitely won't be necessary with the next stage of support. No significant functional change probably.
As before, please do a full rebuild of gsdx. I hate it as much as you but don't know how to make VS smarter about this.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2712 96395faa-99c1-11dd-bbfe-3dabce05a288
Fixes shadows in Ico and Shadow of the Colossus and hopefully fixes more effects in other games.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2702 96395faa-99c1-11dd-bbfe-3dabce05a288
- Added a hack that changes how alpha is handled.
This can be used to fix stuff like too bright blending, bad effect leftovers or "ghost layers".
Enable via ini > UserHacks_AlphaHack = 1
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2594 96395faa-99c1-11dd-bbfe-3dabce05a288
- Converted an upscale hack to the format I plan to use from now on. (Also makes this hack work better :p)
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2422 96395faa-99c1-11dd-bbfe-3dabce05a288
- Remove the silly upscale hacks from an earlier commit
- Replace them with a less silly version in CreateSource() :p
- Remove a few of the outer pixels from the visible area, as they often contain glitches
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2241 96395faa-99c1-11dd-bbfe-3dabce05a288
- Added some sad attempt to fix small upscale annoyances. It's very hackish but better than nothing :p
- Small cleanups
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2169 96395faa-99c1-11dd-bbfe-3dabce05a288
* Removed GSTextureFX classes
* Built shaders right into GSState classes, using GSStateDX as an interface, so that all shader caches get auto-destroyed along with GSState.
In addition to being a bit of a code cleanup, it should be a bit more efficient too since all of the extra dereferences to GSState from GSTextureFX have been removed. :)
git-svn-id: http://pcsx2.googlecode.com/svn/branches/GSopen2@1849 96395faa-99c1-11dd-bbfe-3dabce05a288
* Software mode seems to work fine. Suspend and resume emulation work nicely, without flaws.
* Hardware DX9 mode suspends but displays only black after resuming.
* Hardware DX10 status is unknown.
git-svn-id: http://pcsx2.googlecode.com/svn/branches/GSopen2@1842 96395faa-99c1-11dd-bbfe-3dabce05a288
Initial pixel offsetting support via gsdx.ini.
Use pixoff_x = somevalue and pixoff_y = somevalue.
This can be used as a workaround for the various upscaling errors :)
Try these values for Takes of the Abyss for example:
pixoff_x=-8
pixoff_y=-8
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1650 96395faa-99c1-11dd-bbfe-3dabce05a288
- Automatic texture filtering should be ok now, occasionally point filtering was used. Tested it on the ps2 and figured with no mip levels LoD and minification settings are just ignored altogether.
- Also run a few tests on the gather instruction with the reference rasterizer and found a fatal flaw with it. It returns the four samples for bilinear sampling (in a funny order, which isn't documented of course, x = bl, y = br, z = tr, w = tl), but there is no way to guess which four were selected exactly. Due to some hidden rounding error it might grab different texels than I would when calculating the position of the upper-left texel, of which the fractional part is be used for the interpolation. When the texel positions do not match it leaves annoying discontinuity errors. Oh well...
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1571 96395faa-99c1-11dd-bbfe-3dabce05a288
- trying the dx10.1-only "gather" shader instruction for palletized lookups ("8-bit texture" mode), saves 4 instructions which isn't much but still... (not tested, don't have ati)
- may fix the intel gma "no output" bug (don't have gma either :P)
- and the usual small code optimizations
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1549 96395faa-99c1-11dd-bbfe-3dabce05a288
gregory.hainaut