The directional lights’ shadow does not look right
I have never seen any shadow like that in any renderers for any lights. The shadow is a circle??!!
What is the algorithm behind the directional lights’ shadow?
@Evgeni_Popov can help with that, he is the king of the shadows
Huh, Popov taught me how to solve this problem.you can check this topic 
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musk’s topic goes very well into this, the same frustum problem is happening here:
Move the light a tiny bit up, shadows render as expected:
Alternatively, you can set the light’s frustum manually:
There’s some talk about how the directional light’s position affects the shadows here: Shadows | Babylon.js Documentation (babylonjs.com)
And here’s a bit more on the calculation of the shadow projection matrix: Tutorial 16 : Shadow mapping (opengl-tutorial.org)
Does that solve your question, @Newsome ?
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@PirateJC could we add this to the doc I am pretty sure this kind of tips can be a lot of help 
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