problem when rendering in high res.
 

i am working on this image the last few weeks and I think I am almost finished with it. yesterday I did a rendering in a very high resolution (3500x3200) so I can print it in a A4, but i noticed that there are differences in the matirials.

The first image's original res was 1280x1024
http://users.otenet.gr/~herouvim/net/sosLow.jpg


and here is the other rendered in high res
http://users.otenet.gr/~herouvim/net/sosHigh.jpg


In the matirial network of the mask, I use 3 3Dfractal nodes for the shiness, the color and this yellowish outline.
Do you recomend to re-adjust the matirial in that high res or is there an easier way?

thanx

From the looks of it, I can tell for one that your tesselation is worse in the second image, so it's not JUST the texture. If I had a guess, I would say that you probably just forgot to render out in production quality, which can be changed in the render globals window in case you didn't know.

Even if I had to set everything in high quality etc etc before the 1 hour long rendering, i managed to forget to increase the polySmooth value in my model :)
that's all about the tesselation... and i think it has nothing to do with the matirial.