Is it a Bug or a Feature?
Or did I make a Mistake?
The Problem: I rendered this Picture, linked below with "Quick Render". When I was satisfied with everything, I made the Rendering-Attitudes for the highest Quality, that is possible and rendered again in the "Quick Render" with a solution of 320x240. There was still a bit visible structure on the surface, that was, what I wanted.
So I rendered the Picture in the "Full Render" with exactly the same Attitudes as in the "Quick Render", but a solution of 800x600.
What happened? The middle hill was black. Thats not, what I wanted.
So I thaught, ok, the "Quick Render" works different from the "Full Render" and I rendered the File again in the "Quick Render", but with a solution of 800x600. But the middle hill was black, too.
Now I thaught, maybe I have changed something, and tested again in a solution of 320x240. But everything was ok, the middle hill had a visible structure.
Here's the small picture:
http://www.ariallah.de/picts/Bergseekl2.jpgAnd here you can see the big one:
http://www.ariallah.de/picts/Bergsee2.jpgWhy do I think it is a Bug and what disturbes me?
When I work several days on a Picture, I want to know, how it will look like - from the small preview. When I start a big Rendering, that will last maybe 6 hours, and after rendering I can see, it ist not, what I wanted, then it is a bit frustrating to me. I think, it is important, that a small view should show the same as the big view will, as far as the attitudes are the same.
A test with the "Full Render" showed the same mistake. (Same attitudes - different results in the two different solutions)
(Sorry for my unprofessional English! I hope, you understand, what I mean.)