I use the poser render dialog using manual and a default lighting set up.  The scene in question is a base scene which I often used as the basis further scenes. I changed nothing in the scene and did a test render before the installation.  I did not 'resave' the scene and therefore loaded the same file after installing SR1.  I have also noted that, in the render, the hair and the clothing are identical it is only the SSS that has changed.

The character in question I use in a 'time traveller' story line so I have a present, past, future and mystical base figure. These other renders show the same changes but then they use the same default lighting so I would expect this.  Once again nothing in the scene changes accept where the materials use SSS.  The materials use BBs SSS setup with very little in the way of changes.  The only way I can get close to the old render is to drastically the reduce the light intensity of the scene but the resulting skin, while not glowing seems to lack contrast and depth.  Of course this may well be more accurate and I have just got used to seeing it the old way.  It does however leave me with the problem that my character is now going to look very different when compared to earlier renders.  

I could re-install the earlier version of 2012 but then I would lose the improvements in SR1 and I have found quite a few in last few hours.  I guess I will just have to accept that SR1 does not like my set-up, particularly if others are not seeing the same problem.

This being the case I think I will spend my time setting up a different default lighting rig that will work with SR1 and hopefully get close to where I started.  I will however keep the earlier light set up just in case it all reverts in SR2 or SR3. 

 

 

I use Poser 13 on Windows 11 - For Scene set up I use a Geekcom A5 -  Ryzen 9 5900HX, with 64 gig ram and 3 TB  storage, mini PC with final rendering done on normal sized desktop using an AMD Ryzen Threadipper 1950X CPU, Corsair Hydro H100i CPU cooler, 3XS EVGA GTX 1080i SC with 11g Ram, 4 X 16gig Corsair DDR4 Ram and a Corsair RM 100 PSU .   The desktop is in a remote location with rendering done via Queue Manager which gives me a clearer desktop and quieter computer room.