problemas with radiosity

[badpixel]

Hello people, im having a lot of problems, so it will nice to heard some advices from the best artist in the business.

 

im using radiosiy with eis photometric files. logarithic exposure control and in radiosity 98% quality, 10 intinerations and 5 in filtering.

 

the global ilumination doesnt convinve me

i dont know how to make the lights glow in radiosity (previously i used a high ambient light excluding all objects from the light except the glowing surface) i made this in radiosity and it affect all objects.

and finally my metals and glass materials suck s!!!!!

 

so im looking foward to hear your advices, thank a lot dudes!!!!!!!!

[lxgrunger]

reduce highlights on the metal material.

For the glow; use postprocessing. you will have more control over it.

[Harjeet Singh]

try adding more details to wall textures and may be some lights in the corridors.

[Woody79]

try turning on final gather, this will add the glow around lights, also will add soft shadows etc, but be warned the render times will go up loads.

[badpixel]

thank to all you guys..let me try your advices..if found my first lethal mystake......i was working in meters an have my default units in inches. ( i heard that is suicide for a radiosity solution).

 

ixgrunger: a que te refieres con postprocessing

 

virses: yes i know...my materials are very, very basics.....i have been looking for tutorials focusing in materials, but i didnt found any usefulll.if you know were i can found thatr kind of tutorial that help me to improve my materials , i will appreciate a lot.

 

 

woody: what do you mean with final gather???....i saw your webbpage and your tutorials help a lot!! ill try some changes and post the result.you should think in add a tutorials for advanced materials

 

again thanks!!!!

muchas gracias

[Ricardo Eloy]

Yes, that is totally suicidal when working with radiosity.

For the final regathering, avoid it as much as you can. I'd personally work on the lights before turning it on. It's mostly recommended when you have not-so-well-modeled meshes, but in your case I believe you can avoid it. Rescale your model to the right unit an let us know what you get, alright?

[CRD]

Yes, it is vital to have your scale set correctly. After you fix that try these settings:

Initial Quality: 95%

Refine Iterations: 50

Filtering: 1

Global Subdivision Settings: .15 meters (6 inches for me)

No regathering.

 

Regathering is next to useless in Viz 4 because it takes so long on average scenes. Viz 2005 has Adaptive Sampling which helps a lot. So look into it if you ever upgrade.

 

Good Luck

[badpixel]

ok...i adjust de units in the model, and the lightS start to work like they should do. the self iluimination in the ceiling lamps is working too now...( IS FUNNY THAT A SIMPLY AND TINY THING LIKE HAVING THE WRONG UNITS CAN BE TURN INTO A BIG BAD HEADACHE!! ) i tried the radiosity set that you advice to me 90 %quality 20 intinerations 5filtering and global subsivisionsettings enable.

 

the ilumination is better...but i think i can improve it. im happy with the map of the ceiling.....but the wall is lacking of texture an the aluminium in the windows doesnt look real.......can anyone can show me some material settings for a good paint wall and alumium....????? i would like to do that before introducing more ambientation.

 

thanks a lot guys!!!

 

P.S. I STILL DONT UNDERSTAND WHAT FINAL REGATHERING IS...I DONT KNOW WHAT IS IT AND I DONT FIND THE WORD IN THE DICTIONARY.