A free mod for Resident Evil 3 2020, by ChaserJZX.

Clean Presets for Reshade

This is a new preset for the popular game Reshade. It uses a combination of depth and brightness to create the effect that the sky is actually at night, even when it’s daytime. The effect is similar to what you would get from using a high-end camera but without the high price tag.

Some of the light color & luminance correction

The effect is achieved by using a combination of depth and brightness. The depth component adds a shadow to each object closer to the camera. The brightness component adds more light to the shadows, creating a more realistic effect.

The shadows are not affected by the light color & luminance correction, so the clouds will still look as dark as they should.