nv2a: add NV_PGRAPH_CONTROL_3_TEXTURE_PERSPECTIVE_ENABLE, fix W_param tests and see through #1826
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Passing clipRange variable as a uniform and performing perspective divide in fragment shader for z_perspective = true solves the see through issue that affects many games. Shader code for z_perspective = false is virtually unaltered.
polymetal0
changed the title
polymetal0
changed the title
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Hi again. I think this is the 4th PR now opened for this. As much as I'd like to see Halo 2 and other games fixed, I still have yet to see the test cases that I've asked for that demonstrate this actually matches hardware behavior. Will you please create the test cases? |
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Hi. Yes sure, I'm having a look at the nxdk but I need some guidance. How could I build a scene that replicates this unwanted see through effect? could someone give me some specs? With perspective enabled, I'd put two or more 3D objects in a way that one occludes the other(s), but I assume they'd have to be in a specific position and orientation. Also, I wanted to test the titles in #1016 that are known to suffer from this @Triticum0 And finally, the latest release of nxdk_pgraph_tests has no .xiso image attached, and there's a ZMinMaxControl test that might be helpful for this PR that is not included in the previous release @abaire |
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Dunno if i've mentioned in previous issues but just in case, the pr does fix clipping but breaks shadows and lights in splinter cell. |
Thanks for the heads up, the workflow should be fixed now and the latest release has an iso artifact. |
How so? I haven't tried any Splinter Cell yet. Anyway, this pr is slightly different bc the code was reorganized when Vulkan was implemented. Try it if you like :) |
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some send my an app image forgot how to build from source. |
There you go |
there is like shadow/light clipping and you can see them behave like a vertex explosion. There might be still a depth conflict. |
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yeah think I got same issue on splinter cell as well thought comparing both images to xbox might be unrelated as seem dynamic light no even rendered on master build. Xemu v8.2 pr xbox Reference: https://www.youtube.com/watch?v=tA26hB0vbGk |
Now that you mention it, this PR may also fix many of the missing shadows in #577, I could test it on Wallace & Gromit, Conker and Halo CE. It also fixes some clipping issues in Halo 2 cutscenes. |
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Done some more testing seems to have fixed most of the z-ordering issues. in most of game I tested. 007: Nightfire Masters Pr Battlefield 2: Modern Combat Pr Breakdown Masters Pr Catwoman Pr Far Cry Instincts Pr Juiced Pr Marvel Nemesis: Rise of the Imperfects Pr Midtown Madness 3 Fixeds the shadows as well Pr Project Gotham Racing Shadows are broken Pr Quantum Redshift V-Rally 3 Pr Games unaffected Games Untested. will not test any more game on-till a test case has been written. |
Edit: this one is trickier than expected, probably unrelated. It changes on different scales |
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Fixes robots, bionic ingame clipping and ice age 2 |
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Partially fixes Halo 2 master: 956ef0b pr: |
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Halo 2 CoOp Vulkan X1 OGL X1 OGL X2 |
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Dynamic lights too? (Effect is at any scale) |
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Vulkan and oGL, any scale: |
They are still there, but unused
- z_perspective refactor to PixelShader and texture_perspective var added - vtx_inv_w and vtx_inv_w_flat vars totally removed - Fixes warping of textures from previous commit w/o breaking tests - Also fixes dashboard menu background regression
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This commit did NOT fix dashboard menu regression:
@mborgerson @Triticum0 @Fabxx I'm conducting more tests, but here are some:
w_gaps:
https://github.com/abaire/nxdk_pgraph_tests_golden_results/blob/main/W_param/w_gaps.png
v0.8.8
PR
w_neg_strip:
https://github.com/abaire/nxdk_pgraph_tests_golden_results/blob/main/W_param/w_neg_strip.png
v0.8.8
PR
VK
OGL
w_pos_strip:
https://github.com/abaire/nxdk_pgraph_tests_golden_results/blob/main/W_param/w_pos_strip.png
v0.8.8
PR
polymetal0
changed the title
- Regression of some fixed missing shadows from xemu-project#577, identified the source of the problem
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Some clipping fixes: |
Restores shadows for many games in xemu-project#577 w/o removing the Xbox dashboard background
Happy new year everyone!
I was holding this PR until Vulkan rendering was ready. So here it is, for both Vulkan and OpenGL.
The fix is quite simple; passing clipRange variable as a uniform and performing perspective divide in fragment shader for z_perspective = true solves the see through issue that affects many games.
Edit: Removing vtx_inv_w and vtx_inv_w_flat and using the flag texture_enable fixes or shows progress in some pgraph tests