fRaytrace material question

[decorix]

hello,

When using fRaytrace material (final render)
What do you normally put in Reflection map or Refraction map?
The colour white is the strength of the reflection.

eg:

because most often you put HDRI map eg in the enviroment for
reflection. So does this mean for reflection map it self you can use
another map?? that cast a different reflection based on the map that
you are using and not the enviroment?