radiozity in GForm Z

[arkitekten]

Can anyone show me a tutorial, or axplain how the radiozity part of Form Z works?

 

I have checked the manual witout luck. I keep getting extremly ugly shadows whitch looks like they have been drawn with a fat crayon...

 

can anyone help?

[Chris_Mac]

Sorry I cant be of more help, but I've used FormZ for more than 5 years now and have never managed to achieve even remotely decent images with Radiozity.

 

....in fact, come to think of it I've never even seen any good FZ Radiozity work - hopefully in the future there will be some good radiosity and GI renderers available for FZ... Brazil?.....Finalrender?....V-ray?.....

[bigcahunak]

I second chris.

Make a U-turn while u still can...

[Votruba]

I am new at using FormZ RadioZity and have not had great luck using it. The fat shadows may be a result of your mesh being not dense enough. You may also have set your shadow softness too high try reducing it. Another thing that you can try is using Rendering with direct illumination, which is a hybrid between RadioZity and Renderzone. It uses the hard shadows from the Renderzone Raytracer combined with the reflected light from RadioZity.

[jackb602]

Can anyone show me a tutorial, or axplain how the radiozity part of Form Z works?

 

I posted a tutorial a while ago on the FormZ forums (http://www.formz.com/forum/general_discussion.html). It's under the Tutorials section, and it's called "radiosity using the sun and atmoshperic lighting". But I gave up on FormZ radiosity more than a year ago, and switched to Cinema 4D for rendering, even got a discount for owning FormZ. I still use FormZ for all my modelling, but the renderer is VERY difficult to master, not to mention slow. If you have specific questions, try the FormZ forums. They have exceptional technical support.

 

Jack

[liquidarch]

One of the most important things for radiosity in FormZ is to use the accurate lighting option in the lights palette dialog. The settings for the watts/psf need to be around .27-.31 (as opposed to the setting of 100, which is how it starts out), and the apply atmostpheric lighting can be checked, with the candelas per foot set at about 7.

 

There are other tricks, too, but that at least will keep your image from being "whited out" from the intensity of the sun.

 

Hope that helps,

 

la

[mbr]

I gave up on Radiozity many years ago, and also never got anything realistic (although I did get some abstract, 'cool' images).

 

Form-Z 4.5 will have Lightworks built in, which is a true GI renderer. Unfortunately, it will not have the cheats that Final Render, Vray, and Brazil has (according to their tech guy I spoke with). I guess this means it won't be as fast. Surprise! Form-Z will still be a slow renderer!

 

Hopefully Final Render or others will make a plugin. It would make things a lot easier than buying Max to render and animate in.

 

I'll keep my fingers crossed about Lightworks.

 

For now I'd suggest going through some good fake GI tutorials and winging it. Although, from my experience, FMZ isn't stellar at handling a ton of soft shadows.

Anyone else have experience with using fake GI (with several soft shadows)? It's been a while since I rendered in FMZ and am still getting the feel for it.