Snow Top ***UPDATE NO. 3**

dhavalmistry · November 05, 2007, 01:17:41 AM

this is just a rough draft of whats cooking right now on my stove....

I am really not sure why snow isnt white....

efflux · November 05, 2007, 06:16:09 AM

Nice distribution of trees. Snow is a difficult one. I've never tried it myself but it needs to have some kind of translucency or faked effect to really look real.

rcallicotte · November 05, 2007, 08:42:10 AM

Even though your snow isn't perfectly white, I don't think real snow is. So this looks pretty good. Everything else looks absolutely spot-on. Great.

Mahnmut · November 05, 2007, 09:14:20 AM

Nice!
To me your skye seems to have a greenish touch, maybe it es the redsky decay that makes your snow look yellowish?

sjefen · November 05, 2007, 10:38:11 AM

Really nice. The tree distribution is awesome.
Did you use the intersect underlying option for the snow? Maybe with the displacement intersection? I've noticed that this do something with the colours.

Hannes · November 05, 2007, 10:40:12 AM

In the Luminosity tab check "luminous" and type in a value of about 0.5. This worked for me most of the time. Btw, is the colour of your snow really pure white?

dhavalmistry · November 05, 2007, 10:42:34 AM

@sjefen: Yes I did use intersect underlaying option but with default settings

@Hannes: Yes the color of the snow is pure white (maybe 0.0001% blue added)

sjefen · November 05, 2007, 10:49:52 AM

Quote from: dhavalmistry on November 05, 2007, 10:42:34 AM
@Hannes: Yes the color of the snow is pure white (maybe 0.0001% blue added)

Correct. The snow is white and the blue is caused by it reflecting the sky.
It can of course have a different colour. I think that depends on how much dirt there is in it.

otakar · November 05, 2007, 11:57:33 AM

The color of snow varies with lighting. Snow on the trees would greatly add to realism

dhavalmistry · November 05, 2007, 12:06:12 PM

Quote from: otakar on November 05, 2007, 11:57:33 AM
The color of snow varies with lighting. Snow on the trees would greatly add to realism

thats what I am working on right now...and I think I've got it....

bigben · November 05, 2007, 08:57:09 PM

The snow colour looks like a lighting issue... my bet is on the sunlight colour... you made it slightly yellow didn't you? This may also be affecting the colour of the sky. The best lighting I've had with snow used fairly default settings for atmosphere and lighting with the main exception of setting the envirolight colours.

http://picasaweb.google.com/ozbigben/TerragenRenders/photo#5096847691893126162

Colour on surface = blue sky density
Colour on atmosphere = red decay
The sunlight has a *very slight* yellow tint added.

Hannes · November 06, 2007, 08:25:45 AM

Did you try this luminosity thing?
Here is a quick comparison. The images have the same lighting. The only difference is the checked luminosity with a value of 0.5 and a light blue tint in the second image.

rcallicotte · November 06, 2007, 09:58:34 AM

I almost like the one on the left better. It has something to do with how the eye registers it in real life...

dhavalmistry · November 06, 2007, 10:34:10 AM

Quote from: Hannes on November 06, 2007, 08:25:45 AM
Did you try this luminosity thing?
Here is a quick comparison. The images have the same lighting. The only difference is the checked luminosity with a value of 0.5 and a light blue tint in the second image.

the first image/my image is what happens to snow when the sun is down t oabout 10-8 degrees

Hannes · November 06, 2007, 01:11:55 PM

Here's another one with luminosity set to 0.3 and a very very pale blueish tint. The sun's elevation is set to 9.