Hallo!

During the last few day I've made a really complex vue picture including a poser file.

Though my computer is so slow, it has even problem with the "fast preview".

When I want to render my picture, even very small, it is alway stuck by 13 % (preparing radiosity).

What can I do now? Is there a possibility to minimize the th file or change the render parameters in order to be able to render it?

Please help me.

Thanks in advance.

Mariajudyta

Maybe change the lighting model to ambient occlusion instead of radiosity...

Attached Link: http://www.xn--rnskldsvik-dcbe.net/c3d/Vue6_render_settings.pdf

Another thing that is not mentioned here and many people seem to neglect: the quality slider in the atmosphere settings has a huge impact in render time. Normally, you can put that slider in negative values (like -1, for example) with very little impact in the image quality.

I have only two remarks to the document I linked before:
a) I do not recommend turning on "compute physically accurate caustics". If on, this option increases render time tremendously and is not noticeable in most situations. This should be turned on only when you have under water scenes or if you have a glass in close-up, or similar situations.
b) I do not recommend "optimize last render pass". True that it speeds up render but the result is not good, IMO.

Agree with you, Artur on both points. But negative values in the atmo editor can yield to grainy clouds (but if there are no clouds, it's alright), and splotches if you have a strong sun glow and strong scattering anisotropy.

Quote - "negative values in the atmo editor can yield to grainy clouds"

Hmm... I always use negative values and I don't normally get grainy clouds. In my experience, grainy clouds are normally the result of too low AA. But I tend to use the same kind of clouds over and over, so maybe I've yet to come across clouds where this happens due the quality slider.

Quote - "splotches if you have a strong sun glow and strong scattering anisotropy"

Yes, and also in shadow areas when the light balance is a lot towards "ambience". In my tests, I found that the more the light balance is towards ambience, the less negative can the quality slider be, or splotches appear in the shadow areas. If the light balance is, let's say, at 90%, then normally the quality slider can be set at -2 or even less. But if the light balance is so high, shadow areas tend to be unnaturally dark, which can be compensated by increasing the sky dome lighting gain.

Gosh, Artur, I just realized we are not talking about the same slider here. You are talking about the easyGI slider in the light tab, and I'm talking about the one in the sky fog & haze tab!

Ah!, yes, now it makes sense! :-)

@rutra
thanks for the link, it gives some interesting value references.