 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Bruno Cabasson wrote:
> Hello.
>
> I am currently working on snow textures. This one is supposed to be fresh
> and just-fallen snow (fading to a pigment with distance). I am 50% happy
> with it, and I'd like to have your opinions. I am quite OK with the ground
> and the most distant ball on the right, but not really with the nearest
> ball on the left.
>
> (Rendring another test scene with mountains).
>
> Bruno
>
>
> ------------------------------------------------------------------------
>
The sparkle and sense of granularity it good as well as the general
color and finish. The ball shapes are not convincing at all to me in
terms of their surface structure.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Hi!
The texture looks fine to me, although IMO you'll need some sort of
subsurface scattering to make it look more realistic. The problem with
snow is that it usually just doesn't look like an even surface, hence
the need for subsurface scattering.
HTH,
Florian
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Bruno Cabasson nous apporta ses lumieres en ce 2006-12-11 09:04:
> Hello.
>
> I am currently working on snow textures. This one is supposed to be fresh
> and just-fallen snow (fading to a pigment with distance). I am 50% happy
> with it, and I'd like to have your opinions. I am quite OK with the ground
> and the most distant ball on the right, but not really with the nearest
> ball on the left.
>
> (Rendring another test scene with mountains).
>
> Bruno
>
>
> ------------------------------------------------------------------------
>
For the balls, the top is OK, but the sides and overhangs are not. It suposed to
be older, packed snow. The fresh snow should be thicker on the top, thinning out
as the slope increase, and completely absent wherever it's vertical or overhanging.
--
Alain
-------------------------------------------------
A hooker once told me she had a headache.
Rodney Dangerfield
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Alain <ele### [at] netscape net> wrote:
> For the balls, the top is OK, but the sides and overhangs are not. It suposed to
> be older, packed snow. The fresh snow should be thicker on the top, thinning out
> as the slope increase, and completely absent wherever it's vertical or overhanging.
>
> --
> Alain
> -------------------------------------------------
> A hooker once told me she had a headache.
> Rodney Dangerfield
OK. I think this can be arranged with a slope pattern. My purpose here was
to find something suitale for nearly flat surfaces when close to the
camera, and fading away to a bright pigment with distance. I tried to make
it sparkle when seen from near and make it fluffy like brand new snow. Not
a real success for shapes like the balls, but it may be OK in some cases.
I'll rework this ..
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Even better than a slope map would be a group of blob objects that you place
on your object using the trace command. (I'm stealing this idea from Gilles
Tran I believe, if you check his website I think he has a macro for it).
That way you get snow that can hang over the edges of your object and have
a sense of thickness to it.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Bruno Cabasson" <bru### [at] alcatelaleniaspacefr> wrote:
> Hello.
>
> I am currently working on snow textures. This one is supposed to be fresh
> and just-fallen snow (fading to a pigment with distance). I am 50% happy
> with it, and I'd like to have your opinions. I am quite OK with the ground
> and the most distant ball on the right, but not really with the nearest
> ball on the left.
>
> (Rendring another test scene with mountains).
>
> Bruno
Hi Bruno,
It looks good to me, have you tried rendering with radiosity turned on. I
found that really improved my snow texture in a previous image.
Sean
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Thnaks all for advices.
I recall that it is just a texture, and my purpose is not to build a whole
realistic snowy scenery (which requires much more than a texture). I only
want to test the texture in itself. Anyway, in order to add some realism, I
made a simple mountain scene where the ground is just a textured
(iso)surface, but it may be OK to see how the snow texture reacts.
The elevation of the sun is 25 degrees (quite low). The short-distance
appearance is is bit too dark wrt the long-distance. At higher angles the
texture appears brighter at near distance and is more consistant with
long-distance behaviour. I have to test it further... and probably rework.
Regards.
Bruno
Post a reply to this message
Attachments:
Download 'snowtest7.jpg' (181 KB)
Preview of image 'snowtest7.jpg'
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Bruno Cabasson nous apporta ses lumieres en ce 13-12-2006 12:31:
> Thnaks all for advices.
>
> I recall that it is just a texture, and my purpose is not to build a whole
> realistic snowy scenery (which requires much more than a texture). I only
> want to test the texture in itself. Anyway, in order to add some realism, I
> made a simple mountain scene where the ground is just a textured
> (iso)surface, but it may be OK to see how the snow texture reacts.
>
> The elevation of the sun is 25 degrees (quite low). The short-distance
> appearance is is bit too dark wrt the long-distance. At higher angles the
> texture appears brighter at near distance and is more consistant with
> long-distance behaviour. I have to test it further... and probably rework.
>
> Regards.
>
> Bruno
>
>
>
> ------------------------------------------------------------------------
>
Prety nice for just a test.
--
Alain
-------------------------------------------------
For a people who are free, and who mean to remain so, a well-organized and
armed militia is their best security.
Thomas Jefferson
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
This snow is fnatastic. Especially finish.
Could You show just the finish block for this snow?
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Woland" <ziz### [at] wppl> wrote:
> This snow is fnatastic. Especially finish.
>
> Could You show just the finish block for this snow?
Thanks!
Well, it is not only a finish. This texture is a bit complex and is
macro-based. It has 3 components: one for near distances (mainly based on
normals, in order to see the flake structure of freshly fallen snow), one
for the sparkles (scale-independent), and one for far distances. Because
snow remains very bright even when the sun is quite low, I used specularity
with large roughness.
Though I am not 100% happy with the result, I find it good enough to be
usable. But I'll rework it for fine-tuning.
Regards
Bruno
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
