Uncharted Drake's Fortune Offscreen Vertex bug

JimScript commented 2 years ago

I don't know if this is too small of an issue or related to #10955, but when the game tries to render a triangle with a vertex offscreen there is some grey z-fighing effect happening.

Video (look at the floor and the foreground):

https://user-images.githubusercontent.com/66685584/146269847-a91b8dba-1cc3-4566-a05a-a92ad14ad56e.mp4

RSX Capture (sorry for the multiple archive files, it got bigger than I expected): BCUS98103_20211215110857_capture.7z.001.zip BCUS98103_20211215110857_capture.7z.002.zip BCUS98103_20211215110857_capture.7z.003.zip BCUS98103_20211215110857_capture.7z.004.zip

System:

SYS: RPCS3 v0.0.19-13104-43b7d1fe Alpha | HEAD
SYS: AMD Ryzen 5 3600 6-Core Processor | 12 Threads | 15.95 GiB RAM | TSC: 3.600GHz | AVX+ | FMA3
SYS: Operating system: Windows, Major: 10, Minor: 0, Build: 19043, Service Pack: none, Compatibility mode: 0
RSX: Found vulkan-compatible GPU: 'NVIDIA GeForce RTX 2070 SUPER' running on driver 471.68.0.0
SYS: Firmware version: 4.85

Megamouse commented 2 years ago

upload the rpcs3.log file as well please

JimScript commented 2 years ago

Alright, This is another instance, but it has the the same emulator version doing the same thing. RPCS3 Log: RPCS3.log

kd-11 commented 2 years ago

Its a known issue with attribute precision. I'm working on it together with the other depth problems

LifeIsStrange commented 2 years ago

@kd-11 any update ? :)

kd-11 commented 2 years ago

This has been improved quite a bit, but you can still trigger it if you know where to look. Some changes were already made to deal with attribute precision as well as Z-buffer clamping. I guess I also need to look at polygon offset scaling at some point.