DRD Team

This rendering bug affects sky only, I don't know what causing this problem

What version of GZDoom are you using, and what is your GPU, and what is your operating system?

Current GZDoom version: gzdoom-x64-g2.2pre-1664-g18ebe92
GPU: NVIDIA GeForce GTX 760
CPU: QuadCore Intel Core i5-4690K, 3900 MHz (39 x 100)
Motherboard: Asus Z97-AR (2 PCI, 2 PCI-E x1, 3 PCI-E x16, 1 M.2, 4 DDR3 DIMM, Audio, Video, Gigabit LAN)
Chipset motherboard: Intel Wildcat Point Z97, Intel Haswell
RAM: 8 GB

When is the last time you updated your drivers, and are you using Windows or not?

I have updated my drivers about a month ago, but nothing changed. I am using Windows 7

Hm. This is a weird one. The sky sphere is stored as a vertex buffer and never actually changes. So it's very hard to find an explanation for such a weird effect other than suspecting a hardware defect.

are you doing any overclocking of the GPU? I know many weird artifacts can happen if the core or memory clock is pushed above what it can handle - just what came to mind..

I suppose another thing to ask would be - does this happen with any other games? Please try things like EDuke32, Quake 2 (there's a shareware version available I think, if you don't have it), as well as some Direct3D games as well (Half-Life 1/2, Unreal Tournament 99/2004/3/etc).

In fact, try ZDoom (or GZDoom in software mode), as that uses Direct3D drawing surfaces, so it'd be handy to know if it suffers that as well.

If it happens in other games, the hardware and/or system are suspect.

I suppose another thing to ask would be - does this happen with any other games? Please try things like EDuke32, Quake 2 (there's a shareware version available I think, if you don't have it), as well as some Direct3D games as well (Half-Life 1/2, Unreal Tournament 99/2004/3/etc).

Nope, sky renders normally.

Good news - GZDoom x64 g2.2 pre-2054-g302f59e (Aug 22) renders sky normally, this bug dissapeared.