Internal lounge - reflectance from floor a problem

[Stewart Reid]

Hi,

 

Internal lounge - reflectance from floor a problem

 

Can someone please help? I am currently modelling a 3d internal of a Lounge and I applied a shiny floor texture which I am quite happy with. However, it seems to reflect onto my ceiling way too much and I'm not sure how to tone it down.

 

Please see the attachment 'Internal - final gather'. The brown areas are reflections from the floor.

 

I don't know how to eliminate them. Should I try altering the reflectance and settings for the roof or the floor. I spent a fair while on it and am not sure what to do next.

 

Please also see the attachment 'Internal - rendered' for final result.

 

I'm on a steep learning curve I think.

 

Thank you in advance.

 

Stewart Reid

 

(3ds max 9 m.ray)

 

ps - I mentioned this previously on a different thread - Can't state enough how excellent the MentalboutMax tutorials are. Brain and Joel present them very well. Especially enjoyed the 'Elevated Life' series.

Edited January 21, 2009 by Stewart Reid

[Justin Hunt]

Is the floor a arch&design shader? if so then go to the Fast Glossy Interpolation settings, turn ON "High detail Distance" and set the distance as needed. Also set the "Interpolate grid density" to 1 (same as rendering)

 

jhv

[Ky Lane]

That will change once you put things in to cover the floor - mats, furniture etc.

[Spacelord]

Sounds like your talking about the colour of the floor bouncing up on the ceiling.

If so you need to use the mr raytype switcher and adjust the FG colour.

But Like Ky says once you put in furniture it stop a lot of the floor colour bouncing.

 

Here's Jeff Pattons tip.

http://mrmaterials.com/jeffs-blog/69-managing-color-bleed-when-using-final-gather.html

cheers

[Justin Hunt]

The rayswitcher is hidden in max9 (if I remeamber correctly)

 

Try dropping the "diffuse level", it will darken the material so you can compensate by brighting the bitmaps output value.

 

Remeamber that colour bleed is a natural thing, and considering the amount of direct light hitting the floor, the degree of colour bleed on the ceiling is to be expected. To get more accurate results try increasing the FG settings to a better quality, or combine Photons and fg.

 

Had another look at the image, its rather flat. What are your exposure settings? Also increase the AO radius, this will soften the dark edge around the wall edges, making is more natural.

 

 

jhv

Edited January 22, 2009 by Justin Hunt

[Stewart Reid]

Wow,

 

Thanks for all the help guys. This is a fantastic forum.

 

Regards

 

Stewart

[Stewart Reid]

The rayswitcher is hidden in max9 (if I remeamber correctly)

 

Try dropping the "diffuse level", it will darken the material so you can compensate by brighting the bitmaps output value.

 

Remeamber that colour bleed is a natural thing, and considering the amount of direct light hitting the floor, the degree of colour bleed on the ceiling is to be expected. To get more accurate results try increasing the FG settings to a better quality, or combine Photons and fg.

 

Had another look at the image, its rather flat. What are your exposure settings? Also increase the AO radius, this will soften the dark edge around the wall edges, making is more natural.

 

 

jhv

Justin,

 

Further to your reply to my post in regard to exposure settings, please see attachment.

Any help to get it more realistic would be greatly appreciated.

 

By the way when you say increase the AO radius do you mean for every material because I have my AO set under each material. I'm maybe on the wrong track with this.

 

Thank you.

 

Stewart

[Justin Hunt]

Yes at material level, at this stage only change the wall material, and possibly the ceiling.

 

Exposure control

 

Turn off Exteriot Daylight, this is for externals

Try keep you mid tone @ 1 (this is problably what is killing the image)

 

jhv