Decrease the preview environment's directional light shadow maximum distance for sharper shadows

[jcostello]

Describe the project you are working on

General 3D environments.

Describe the problem or limitation you are having in your project

Current default directional light shadow distance is set to 200 which is a lot and blurs a lot the shadows. 50 is a better default to have sharper shadows. Also adding a directional light manually, it has 100 as distance.

Describe the feature / enhancement and how it helps to overcome the problem or limitation

It will improve shadow sharpness by default

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

Read above

If this enhancement will not be used often, can it be worked around with a few lines of script?

No

Is there a reason why this should be core and not an add-on in the asset library?

No

[Calinou]

I have a pull request for this: godotengine/godot#49736
I find 50 too short (except with BakedLightmap + shadowmasking), but 100 is reasonable.

However, no matter the shadow distance we choose as the default, it will never be an ideal fit out of the box for a given scene.

[jcostello]

True, 100 will be a good middle point.