DX12 and ground texture bleed through.

[Wise87 1,281]

I saw something about this over on the FlightSim official forums but I was curious if any DX12 users are experiencing ground texture bleed through. It seems the fix is to switch back to DX11 but then I can’t use Frame Generation with the 4090. Seems to happen more at third part and Asobo handcrafted airports. I can live with it for now as DX12 still has work to be done. Just seeing if others are seeing this as I have seen it mentioned much here as it is on the MS forums.

[JasonPC 173]

Yes I've seen it and I have seen many others report the problem. It seems that it also depends on the camera angle whether the bleed through occurs or not.

[ryanbatc 12,859]

Oh that's what that is?  Interesting.  I see it from time to time in dx12.

[GSalden 4,663]

Also clear the DX cache. That helped me with bleedthrough and purple lightpoles when switching to DX12.

No more issues after that for me.

[Flying-Hare 218]

I have observed this issue with DX11 too. How to clear the DX cache?

[udidwht 133]

51 minutes ago, Flying-Hare said:

I have observed this issue with DX11 too. How to clear the DX cache?

Open explorer then right click on C:>Properties>Disk Cleanup>DirectX Shader Cache...

[Wise87 1,281]

Thanks for the great advice. This is the tip I was looking for. The texture bleed was driving me crazy.

Edited January 3, 2023 by Wise87

[Paul K 1,336]

Just for info, if you use CCleaner, you can have it clear the DirectX Shader cache every time you run it.

[cianpars 1,166]

I had this issue a lot prior to the last sim update, which seems to have cured it.  I do delete and rebuild my shader cache fairly regularly too especially if I switch back to dx11 for testing.

[AnkH 2,268]

On 1/3/2023 at 7:08 AM, GSalden said:

Also clear the DX cache. That helped me with bleedthrough and purple lightpoles when switching to DX12.

No more issues after that for me.

Ok, this one would be a winner, I definitively have to try this. Thanks for posting it

[Johan217 49]

Good to hear that clearing the DX cache fixes this for some. Unfortunately not for me though. I have a Radeon RX5700, from what I understand the problem is more likely to affect AMD users.

[ttbq1 347]

I had a 3080ti with 12GB Vram and any time I loaded my aircraft at EGLL (inibuilds) under DX12 I had the same texture bleed, something like google maps showing up, since it was exceeding the VRAM capacity, also the FPS dropped to the 20's.

I got my 4090 with 24GB VRam last friday, and when I load the same exact scenario I don't find any issues, no ground texture bleeding, no fps drop, and everything remains above 70fps with Frame generation and VRAM around 17Gb out of 24Gb.  

[somiller 694]

1 hour ago, ttbq1 said:

I had a 3080ti with 12GB Vram and any time I loaded my aircraft at EGLL (inibuilds) under DX12 I had the same texture bleed, something like google maps showing up, since it was exceeding the VRAM capacity, also the FPS dropped to the 20's.

I got my 4090 with 24GB VRam last friday, and when I load the same exact scenario I don't find any issues, no ground texture bleeding, no fps drop, and everything remains above 70fps with Frame generation and VRAM around 17Gb out of 24Gb.  

Are you running 4k res?

[Tony P 160]

DLSS is still a blurry mess in my opinion.  

[bobcat999 8,484]

1 hour ago, Tony P said:

DLSS is still a blurry mess in my opinion.  

Everywhere?  For me and a lot of others, it is only on the flat screen displays. 
I find the analogue gauges, aircraft, and scenery are all sharp.
Even the flat panels aren't too bad with a bit of sharpening from the new slider in the menu.