Shadows calculation insanely long with a 5700xt gpu

[kana00]

I have exactly the same problem. Another player I met in the game has it too. I bought the latest Radeon card available.

My configuration:
- i9-13900k
- Radeon RX 7800 XT (latest driver version: 23.9.3)
- 64 Gb of Ram with XMP profile
- i'm on a SSD NVME (4 on a Raid 0)
- Windows 11 (recent installation)

while i'm gaming, my graphics card is at 50%. When I start to calculate the map, it drops to 2%.
calculating shadows can take up to 2 hours on high settings.

Reproduction procedure:
- launch Maniaplanet
- launch the title pack obstacle
- open a map in the editor
- start calculation

Out of curiosity, I also ran the following command to calculate the shadows of all my maps. The bug persists.

Code: Select all

ManiaPlanet.exe /computeallshadows /useronly /collections=Storm /LmQuality=High

EDIT:
1) I noticed that it does not depend on the title pack used.
2) something quite strange is happening:
- If I ask, on a new map, to calculate the shadows only on a spawn. My gpu is used at 75%
- If I ask, on a new map, to calculate the shadows with blocks (complexity = 968). My gpu is used at 53%
- If I ask, on a new map, to calculate the shadows with blocks (complexity = 1490). My gpu is used at 42%
- If I ask, on a new map, to calculate the shadows with blocks (complexity = 2764). My gpu is used at 18%
- If I ask, on a new map, to calculate the shadows with blocks (complexity = 4307). My gpu is used at 9%
- If I ask, on a new map, to calculate the shadows with blocks (complexity = 8048). My gpu is used at 5%

The more blocks I add, the less my GPU is used.

[Tushy444]

This is a bug with AMD graphics cards. It is fixed in TM2020, but this fix will never come to maniaplanet since nadeo stopped supporting it.