[Lightning] Kart shadows don't work with point lights when shadows are enabled

[pedropaulosuzuki]

Description

If you enable shadows in the advanced pipeline, no kart shadows are to be seen on the floor (even on Shadows: Very High setting). If you disable shadows, then you can see the kart shadow (the simple "project kart from the Z axis to the floor" shadow).

Steps to reproduce

1. Launch SuperTuxKart
2. Go to the graphics settings (Main Menu > Options > Graphics)
3. Select "Custom settings..."
4. Set the "Advanced Pipeline" checkbox to active
5. Set "Render Driver" to OpenGL (as shadows are not supported in Vulkan in 1.5)
6. Set shadows to anything except Disabled. For simplicity, choose "Very High"
7. Start any game mode on Old Mine. For simplicity: Single Player > Egg Hunt > Old Mine
8. Walk a bit until you're under the mine light.

You should see that the shadow is not cast on the floor.

See the video below:

0001-3112.mp4

Configuration

SuperTuxKart 1.5 - Flathub