Hello! I updated to v4.8.0 just now and I started encountering these strange rendering mishaps, and I'm not sure what to call them. They seem to only appear when I run the Vulkan renderer. Some issues include:
Wipe effect 'bleeding' across the screen, similar to a Hall of Mirrors effect
Random wipe lines jumping up the screen before disappearing
Font characters' vertices jumping across the screen
0:07 of the below video
I first noticed them when I was working on fixing my mod, but I found out that they appear regardless of what I have loaded (or lack thereof.) I have a video showcasing their devious presence:
I do not encounter these things when going back to previous GZDoom versions. My graphics card is a Radeon RX 460.
Based on the video it looks like some kind race condition between the shader that outputs to a texture and the shader that uses that same texture for sampling. This either implies a driver bug or wrong flags used for the pipeline barriers between the stages. It could also indicate hardware failure.
Sadly it requires me to start over reading a better source for explaining the pipeline barriers than this horror to really decide if its an error in how I wrote the barriers. That isn't very fun so it may take a while until I get around to it.
The graphical issues here on this forum happens to me on anything above V4.7.1. I was having sound issues as well with disappearing weapon sounds and looping sounds, but that has been resolved in V4.8.2.
My Computer Specs Are As Follows:
Windows 7 Ultimate SP1
Mobo: GA-970A-D3P (Rev 1.0)
CPU: AMD FX 8350 8 Core (4000Mhz - 4200Mhz)
Video: Gigabyte Radeon RX 580 8GB
Sound: Sound Blaster Audigy
SSD's: 2X Samsung EVO 860's 500GB
Power: Corsair 1000W
CD/DVD: DVD ROM, CD/DVD Writer