Sun lights do not allow Z-Buffered shadows. Use a narrow Kleig light that is very, very, very far away.
The shadow map resolution can probably be set to whatever is just larger than your render resolution.
Sun lights do not allow Z-Buffered shadows. Use a narrow Kleig light that is very, very, very far away.
The shadow map resolution can probably be set to whatever is just larger than your render resolution.
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