The shadow disappeared after the model was moved

Questions
,
1

The shadow disappeared after the model was moved.
before moved:

image
image962×556 52.8 KB

after:
image
image602×656 47.2 KB

How to adjust that?

2

I suspect the shadow camera’s frustum is too small. So you have multiple options:

  • Make the frustum larger although this will worsen the shadow map’s quality.
  • Since you are using a directional light, you can translate the light such that the character is always inside the frustum
  • Use a fake blob shadow instead of a real one.
1 Like
3

The range of movement of the character model is very large, about several thousand meters, generally how to deal with this situation？

4

You could keep the character (and the light) at the origin and just transform the world instead.

5

In this way, Objects in the scene that are far from the origin will also have no shadow

6

You could have two scenes for the world and for the character with separate light / shadow setup.

7

The question is do they really need shadows if they are so far away from the player and this the focus are? Probably not.

8

Baked lightmap for static objects
image