Indigo Renderer Forum

Hi!
I modeled this bathroom in Sketchup and used SkIndigo 1.0.9 with Indigo 1.0.9 for rendering. Since it's my first rendered scene, i have a few conserns and questions.
The two scenes were rendered simultaneously and took about 20 hours to get to this result...that, i guess, is a little odd, since the images are really not that big (607x277 pixels) and they are still really noisy, and i didn't really see any changes from when they were only 8 hours rendered...
That is my biggest concern...why is the quality so bad?
Any suggestions or critics are welcomed (eventhough i read almost every tutorial and thread on this forum, i'm still learning, so excuse me if i don't understand technical terms >.<)
Please, take your time and make suggestions, i'm really eager to learn!!
I'll render a bigger image once i hear your critics!

Thanks a lot!

What machine are you running Indigo?

Acer Aspire 4520
AMD Turion 64x2 Mobile Technology TL-58
2 GB ram
Dual Core
533 mhz
Nvidia GeForce 7000m/NForce 610m
751 MB graphics using only 256 MB
32 bit laptop

...

is that bad?

No, the machine is ok.
First of all, you should render each image separately to get a good benchmark.
Then, excessive noise is often due to excessively demanding lighting situations. My guess here is that your lighting scenario is a bit too tough on Indigo. Some scenes with very difficult lighting (by this I mean emitters behind glass, sun behind glass, lots of small emitters, lot of indirect light, lots of glossy or reflective surfaces...) never really get clean.
I would suggest you remove any glass surfaces before your emitters if you have any. If you have any glass in the window, then get rid of it. Use an exit portal in the window if you don't already. Use "fill lights" around your scene to flood it with more rays. They can be large white emitter planes strategically positioned. Also make sure you use BiDir for this kind of cramped scene. You might also want to use the material gallery's "ghost glass" for the shower wall instead of normal glass. Right now this big glass plate makes life difficult for Indigo cos it's catching so much sunlight...

What rendering method are you using? MLT or PT or Hybrid?

- Exit Portals ftw!!1!
- Check that you don't use pure white color for your materials, rgb @ 208 of 255 should be the max (80%).
- Hybrid mode is a "noisekeeper" in some scenes, try without it if you used it!
- Check if your Laptop Power Profile does underclock your system to 50%!

BbB
Thanks for the tips. I imagined that the problem might be the large amount of emitters.
No, there is no glass in the window and i did use an exit portal.
What did you mean by: Use "fill lights" around your scene to flood it with more rays. They can be large white emitter planes strategically positioned....where would i exactly position this large emitter? Like...behind the camera right? Would it be as large as a wall or smaller? (concerning that it can't appear on the image since there's a mirror) and how strong would that emitter be? (power, capacity etc..)
And is a "ghost glass" the same as "thin glass"?

suvakas
I used BiDir MLT. Eventhough i don't understand completely (in technical terms) the difference between MLT, PT or Hybrid etc, i know that the best choice for interior scenes is BiDir MLT...right?

ZomB
I used exit portals!: )
Thanks for the tip about the white colour, didn't know that!
"Check if your Laptop Power Profile does underclock your system to 50%!" How do i check that?

Thanks people!
Any more suggestions concerning materials, tonemapping, camera etc are very welcomed!

joamef wrote:And is a "ghost glass" the same as "thin glass"?

Yes it is for skindigo, the only difference is that while editing "thin glass" for skindigo you can control the blend with the opacity slider.

What material did you use for the mirror?

neo0. wrote:What material did you use for the mirror?

I used the "mirror" material preset on skindigo (specular, IOR: 20, precedence: 10)

Here's a new version of the scene. Almost twice the size, and looks pretty clean to me, with less render time...but not perfectly clean yet...
What do you think?

Looking good - the area around the sink needs a new texture and the wall texture is eye crossing.

Put a bump on your shower doors to make "privacy glass" (if you want)