Angelsinger opened this issue on Dec 26, 2008 · 18 posts
Rutra posted Sat, 27 December 2008 at 3:12 AM
Attached Link: http://www.xn--rnskldsvik-dcbe.net/c3d/Vue6_render_settings.pdf
Hi! :-)Generally speaking, render times in Vue7 are better than in Vue6 but with some kinds of materials, lighting conditions, etc, they are worse. I still didn't figure out exactly what makes them worse. Fortunetally, these are very rare conditions (from my experience) but it seems you've come across one of them.
There's this good document from Peggy Walters in the link above. I would only add these points:
Not mentioned in the document, but a correct handling of the quality slider in the atmosphere settings, tab "Light", is very important for a fast render. You can set that to negative values. The more the light balance is to the right, the more you can put this slider to negative values. For example, if the light balance is at, say, 90%, the quality slider can be at -2 or even less. If you see blotches on the shadows, it's time to increase the slider. My renders are normally done between -1 and -1.5.
Peggy recommends never to increase the advanced special effects slider to more than 46%. I wouldn't be this radical. In radiosity mode, it's many times necessary to move this to 80% or more. Otherwise, you get light leaks. But, if you don't need it, keep it at low values (most of the times I have it at 40%).
In page 9, Peggy recommends to use "optimize last render pass". I absolutely do not recommend this. The final result is a somewhat blurred render in the detailed areas. If you have no details, it's ok but it's very rare to have no details at all in a render.
Also in page 9, Peggy recommends to check "compute physically accurate caustics". That's a render killer and most of the times, on a "normal" landscape, has no effect. It can be good to leave it on if you are under the sea or have glass near the camera, but otherwise leave it off.
Also in page 9, Peggy recommends to check "ignore indirect lighting on plants". I would say that's not a good idea as it flattens out the lighting on the plants. The overall look is very bad, IMO.