Hi all,
I tried to follow tutorials about caustics with blender but I can’t find the option "caustics shadow " on the light object data properties panel.
What did I do wrong here ?
thx for the help
Phyisical light? is that an addon?
Caustic shadows should be underneath the multiple importance setting, for normal lights.
normal light or physical light , the option is missing in both type 
Maybe the addon is interfering with blender even if you do not use it. If not try another blender build.
Is it possible to provide me with the name of the addition and the Lord of the site, so I am looking for it, and thank you very much
The addon you see in the screenshot is Photographer 5