You can use PhotoView Options to set the number of reflections and refractions that appear in the PhotoView 360 Final Render Window.
For example, when two reflective objects face each other, you can set the number of reflections that multiply and appear to recede into the distance.
Additionally, if light passes through multiple transparent surfaces, you can set the number of refractions so that objects behind the transparent surfaces are visible. One reflection (or refraction) is required for each successive face that the light reflects off of or refracts through.