caustics problem

[matteosperi]

Hi,
I am attaching a part of an image of a swimming pool.
I activated caustics solver (in performance) and in the water material the caustics option (slow);
if I do a short preview I see all these luminous artifacts; it also happens in another scene without the glass .. how can I solve?
do i have to exclude the materials that cause me problems from the caustics?
thanks for the support
Matteo

[TomG]

The Caustics render settings have an option to include or exclude objects, designed for this very situation (where distant objects are receiving caustics so they don't resolve cleanly due to how far away they are and really don't need the caustics on them anyway). Note it is done by object, not by material :)

[matteosperi]

thanks for the support and advice :)
Matteo