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OK. Just a little try out of a ruined and "mossy" place.
Thomas
Post a reply to this message
Attachments:
Download 'IonianTempleRuins.jpg' (56 KB)
Preview of image 'IonianTempleRuins.jpg'
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"Thomas de Groot" <t.d### [at] inter nlDOTnet> wrote in message
news:47a44367@news.povray.org...
> OK. Just a little try out of a ruined and "mossy" place.
>
the moss in the horizontal plane looks pretty good, but the vertical plane
(collumns) seems to lack some depth.
using a layered texture map?
Jim
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"Jim Holsenback" <jho### [at] hotmailcom> schreef in bericht
news:47a4627f@news.povray.org...
>
> "Thomas de Groot" <t.d### [at] internlDOTnet> wrote in message
> news:47a44367@news.povray.org...
>> OK. Just a little try out of a ruined and "mossy" place.
>>
>
> the moss in the horizontal plane looks pretty good, but the vertical plane
> (collumns) seems to lack some depth.
>
> using a layered texture map?
>
Yes, it is a layered texture map. I am still experimenting with this as I am
far from happy with the results. In first instance, this was not intended to
be viewed from close up, but this has now to be changed.
Thomas
Post a reply to this message
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Thomas de Groot wrote:
> OK. Just a little try out of a ruined and "mossy" place.
>
> Thomas
>
>
>
Cool. Some promise, but I think when you finally get what you want you
will be some distance from this approach. I don't think real moss
growth would respect the structure of the stones much at all unless it
would be to spread from the cracks or some other surface where it first
takes root. From places that have more to do with sun or lack of, or
water pockets? The interruptions where the stones are rotated just
wouldn't happen much at all I don't think. That is the 'creepy' part
about organic growth. It has no respect. It just crawls over
everything. Moss does seem to 'coagulate' into clumps though, so you
have gotten some of its aspects with a procedural texture. I am
thinking just a plain old bozo pattern might work better. The technique
you have now, agate? suggests that the moss is responding perhaps to a
certain mineral veined in the stone. Maybe lichen would be more like
that? I am not much of a naturalist.
Post a reply to this message
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Jim Holsenback wrote:
> the moss in the horizontal plane looks pretty good, but the vertical plane
> (collumns) seems to lack some depth.
I think that is because the depth comes from a normal map,
and the vertical parts happen to be in the shadow. Maybe it
would help to use a fill light instead of ambient light?
Post a reply to this message
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"Jim Charter" <jrc### [at] msncom> schreef in bericht
news:47a49161$1@news.povray.org...
>>
> Cool. Some promise, but I think when you finally get what you want you
> will be some distance from this approach. I don't think real moss growth
> would respect the structure of the stones much at all unless it would be
> to spread from the cracks or some other surface where it first takes root.
> From places that have more to do with sun or lack of, or water pockets?
> The interruptions where the stones are rotated just wouldn't happen much
> at all I don't think. That is the 'creepy' part about organic growth. It
> has no respect. It just crawls over everything. Moss does seem to
> 'coagulate' into clumps though, so you have gotten some of its aspects
> with a procedural texture. I am thinking just a plain old bozo pattern
> might work better. The technique you have now, agate? suggests that the
> moss is responding perhaps to a certain mineral veined in the stone.
> Maybe lichen would be more like that? I am not much of a naturalist.
yeah.... :-( you are absolutely right, Jim. This first quick and dirty
approach is not leading anywhere. My first objective was to get a decent
distribution of broken columns, which at least seems satisfying.
I wondered if I could get something decent with this (agate) pattern. Bozo
might work better indeed, in combination maybe with boxed, to take the seams
into account. Which reminds me that I also wanted to experiment here with
your excellent Stained Stones macro. That will be another path to explore
more fully.
Thomas
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"Christian Froeschlin" <chr### [at] chrfrde> schreef in bericht
news:47a4b22a$1@news.povray.org...
> Jim Holsenback wrote:
>
>> the moss in the horizontal plane looks pretty good, but the vertical
>> plane (collumns) seems to lack some depth.
>
> I think that is because the depth comes from a normal map,
> and the vertical parts happen to be in the shadow. Maybe it
> would help to use a fill light instead of ambient light?
Yes, that is the problem here. This image was rendered with radiosity, so
indeed the shadows appear flatter. However, overall, I am not really happy
with this texture.
Thomas
Post a reply to this message
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Thomas de Groot wrote:
> I wondered if I could get something decent with this (agate) pattern. Bozo
> might work better indeed, in combination maybe with boxed, to take the seams
> into account. Which reminds me that I also wanted to experiment here with
> your excellent Stained Stones macro. That will be another path to explore
> more fully.
>
>
I also put some time into a 'dribbles' effect, you know tracing a path
of trickles of liquid, responding to surface normals to deflect the
flow. It stalled because of artifacting in the blob components I was
applying but maybe I'll go back to it. Combined with the 'object'
pattern it might be usable for what you are doing or similar. I was
using it to put 'ritual materials' onto my African fetish objects.
Post a reply to this message
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"Jim Charter" <jrc### [at] msncom> schreef in bericht
news:47a5bc8a@news.povray.org...
>>
> I also put some time into a 'dribbles' effect, you know tracing a path of
> trickles of liquid, responding to surface normals to deflect the flow. It
> stalled because of artifacting in the blob components I was applying but
> maybe I'll go back to it. Combined with the 'object' pattern it might be
> usable for what you are doing or similar. I was using it to put 'ritual
> materials' onto my African fetish objects.
I remember that. It looked quite impressive already. In a different context,
that is something that I am interested in too.
Thomas
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