Update on PBR

 

After reading some more on PBR I found a mistake I was doing.

 

The paint textures should use RGB numbers from 30 to 240. That is RGB of (0,0,0) is no good should be (30,30,30) or (50,50,50) for dark colors. For light (255,255,255) is bad, (240,240,240) is good.

The number do not have to be the same, (30,45,76) is also good just do not go under 30. Same with light colors do not go over 240.

Note: you may need to use 255 on things like railheads, wheel treads, or other highly polished metals.

 

Why? On the dark colors you need the 0-30 for shadows and on light you need 15 for highlights.

This has been the same in Trainz form day one, a black loco using an RGB of (0,0,0) shows no detail and looks bad. For light colors I had to use RGBs of (230,230,230) for a white car to look right.

 

 

Note: I have updated to Blender 2.79 today and so far no changes needed.