I would like to ask if anyone can tell me how to obtain the effect that I report in the attachment. Is it a plug-in to add or is it an effect that can be achieved directly with Keyshot?
Definitely something that has to be done in post processing. Just render out both scenes and compile in Photoshop. I think adding this to the Keyshot toolbox would just clutter up the streamlined interface and workflow, which is Keyshot's main selling feature.
If you're referring to the way you can drag the circle with the arrows in it to reveal the finished image vs the image with no materials, that's done in the website's code. It has nothing to do with KeyShot.
Thank you both very much for your clarification.
I will look for an application or a plugin that makes the transition between the two images and adds the cursor with the arrow