On Sunday 14 May 2017 16:29:37 Robert den Broeder wrote: > Hi all, > > Today I created a pen in RS3D and did some GI rendering tests. What can I > do to improve image quality? > > Regards, > > Robert
I think it's fair to say that, in 3D, if you're going to make something reflective then you should make sure there's something to be reflected by it. In your image, the tip of the pen appears to be reflective and the lower half is reflecting the desk upon which it sits but the upper half just looks almost flat-black. The clip also suffers from the same problem - it looks too 'flat'. Assuming that you want to portray the pen on a desktop, I'd place the entire scene within a hollow analytical cube and parallel map some stock office wall photographs to each of the 'walls'. Depending on the angles, I might also fake an office light on the ceiling. The black cap at the clip end of the pen, which looks as though it's not intended to be reflective, doesn't show any detail to 'fill out' its shape - you can't separate the cylinder wall from the endcap and you can only tell that it's a short cylinder from its profile/silhouette - playing around with its specular properties and adding a small amount of reflection should enable you to get some differentiation between the cylinder walls and the endcap. I can see a narrow strip of specular reflection along the barrel and clip extension, and that looks good, but I'd extend that to the endcap and at the same time make it a little more diffuse, so that the specular strip is wider i.e. spreads further around the circumference and covers a greater arc than on the barrel. Is the endcap slightly domed? I can't tell because of the lack of depth but if it isn't then I'd make it so. Last thing I'll mention is the tiling of the desktop material - this wouldn't be a problem if you were going to crop the image - but this is 3D - just don't render what you don't need. Yes, I'm being nit-picky here, but making something photo-real is all about the details. LeeE _______________________________________________ User-list mailing list [email protected] http://realsoft.com/mailman/listinfo/user-list_realsoft.com
