# Why prompt 'The number of caustic lights cannot exceed 64'?

<figure><img src="/files/NJxjxPdsRQMhARTNz7X6" alt=""><figcaption><p>Caustic Lights</p></figcaption></figure>

Currently a maximum of 64 light sources are supported with the Caustic effect turned on at the same time.&#x20;

If this limit is exceeded, you will be prompted for this content.


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