my first radiosity

[illyrianeye]

hey guys, i lost my previous file but here i go again.

 

the following image was created with the daylight system and the following raidosity setting:

 

Initial quality - 85%

Refine Iterations - 0

Filtering - 0

 

Meshing parameters is enabled with a meshing size of 1'-0"

 

RENDERING PARAMETERS

Render direct illumination

with regather indirect illumination turned on

rays per sample - 40

filster radius -5.0

 

 

EXPOSURE CONTROL:

Logarithmic exposure control with daylight and exterior checked and brightness set to 80

 

 

dont mind the chair materials and the floor for now.

 

 

also, to render this image took about 30 minutes, and it was only 800x600, why is that? i excluded some objects from shadows, but still, thats a long time

[proces2]

its definitely the regathering that is causing the spotting on the ceiling and other objects.

 

dial down your rays per sample to 20 and increase the filtering size to 12-15. that should start to smooth it out. like i said before, in your lo-res rendering it is hard to get the regathering to work sharply - it is best built for doing a hi-res rendering.

 

the regathering is the sole cause for your rendering taking 30 minutes. the higher the rays per sample, the longer the rendering will take. turn off the regathering, and i bet it will render in something like 5 minutes.

 

other notes:

-set the refine iteration to 4 or 5

-turn the filtering up to smooth out some of the rough shadowing. something around 1 or 2 should work - never go higher than 5.

 

sean

[illyrianeye]

thanks for the info shawn

 

i turned off regathering, and have the refine iteration set at 4

i still have to work on the texturing, the walls are a little too rough, and the column is not smoothly round.

 

if regathering takes so much time, why use it?

when do you suggest using regathering and when not too

 

[Fran]

Originally posted by illyrianeye:

thanks for the info shawn

 

i turned off regathering, and have the refine iteration set at 4

i still have to work on the texturing, the walls are a little too rough, and the column is not smoothly round.

 

if regathering takes so much time, why use it?

when do you suggest using regathering and when not too

Hi Beni,

 

I'll hop in here if nobody minds. I think someone on the other thread recommended that you use a Radiosity Override material for your textured walls. You can apply it right over your original material (keep your original material as the base mat). Then you can control the appearance of your bump. This control works interactively, so you may not have to re-run your solution to improve the appearance.

 

As for regathering, it causes the renderer to raytrace indirect illumination. This gives much better definition of secondary shadowing and can eliminate many shadow artifacts. For still images, it is often worthwhile to use it for final renders. If you compare the shadowing under the lounge chair with that of the orange chair and ottoman, the orange grouping is sort of floating.

 

For tweaking materials and other test renders, I leave regathering off.

 

I am looking forward to seeing more of your work.

[illyrianeye]

ok i added the background and turned off the bump.

 

i did have a radiosity overide on the wall material, but for some reason even if i reduced the bump i sill got a rough texture. i would like a rougher texture, so ill keep working on it

 

also, i think the bleeding is a little too much, what do you guys think?