Test Drive Le Mans (Le Mans 24 Hours) - car shadow missing

[Erick-BR]

Platform / OS / Hardware: tested on windows 8.1 and windows 10

Flycast version: lastest version standalone and retroarch with updated cores

Hardware: Ryzen 5 5600; GTX 1660 S; 16GB Ram

Description of the Issue

The shadows of cars, including the player's, do not appear during gameplay. Interestingly, when you pause the game, you can see the shadow underneath the car.

Thank you.

[flyinghead]

This looks like a GPU or GPU driver issue. Here is the result with a GTX 1080 (driver version 535.183):

Tested with both NTSC and PAL editions.

[Erick-BR]

I haven't updated the driver for a long time. I'll do it and test again, but on my Intel HD Graphics 4000 laptop I have the same problem. In the Redream emulator this problem doesn't occur, but of course it's better to play in Retroarch with shaders.

On Redream:

[flyinghead]

As I said, this issue is specific to your hardware/software setup. Other games or emulators may or may not experience the same issue depending on the method they use for render.

On Intel you might want to enable Native Depth Interpolation but this isn't needed (and not recommended) with Nvidia.
You should also try other graphics API: OpenGL, Vulkan, etc...

[Erick-BR]

Still persist on lastest driver 566.36.

Ok, thank you for reply.

[kihato]

If you select anything other than per-pixel, the shadow will not be displayed.

[Erick-BR]

If you select anything other than per-pixel, the shadow will not be displayed.

It works with this config. Thank you.

[kihato]

Normally shadows are visible in this game regardless of the graphics API or sorting selected, but d618abc appears to have caused a regression.

[flyinghead]

Indeed, the mentioned commit is missing some code to be 100% correct. It doesn't happen in per-pixel due to the very different rendering method.
Thanks @kihato.

[flyinghead]

Fixed on master