 |
|
|
|
|
|
| |
| |
|
|
From: Warp
Subject: Re: The new max trace level behavior in pov3.7 beta 22
Date: 4 Sep 2007 03:28:28
Message: <46dd091c@news.povray.org>
|
|
|
| |
| |
|
|
Rune <new### [at] runevision com> wrote:
> Will there be a new keyword for specifying the max desired number of
> transparent surfaces passed through (default=infinite)? If not, how can it
> be avoided that scenes that rendered fast before (with acceptable artifacts)
> will render extremely slow with the new behavior?
You think it's necessary? Any suggestions?
--
- Warp
Post a reply to this message
|
|
| |
| |
|
|
From: Rune
Subject: Re: The new max trace level behavior in pov3.7 beta 22
Date: 4 Sep 2007 07:32:55
Message: <46dd4267@news.povray.org>
|
|
|
| |
| |
|
|
Warp wrote:
> Rune <new### [at] runevisioncom> wrote:
>> Will there be a new keyword for specifying the max desired number of
>> transparent surfaces passed through (default=infinite)? If not, how
>> can it be avoided that scenes that rendered fast before (with
>> acceptable artifacts) will render extremely slow with the new
>> behavior?
>
> You think it's necessary?
I don't have particular scenes in mind, but the need for it is just as real
as a ned for an adjustable max_trace_level. If it was just a matter of
avoiding infinite trace loops, a fixed max_trace_level of, say 255, with no
option of setting it lower, would be fine. But it's not just about that, and
this is no different if the ray goes straight through or bended.
> Any suggestions?
I don't know. max_passthrough_level ?
Rune
--
http://runevision.com
Post a reply to this message
|
|
| |
| |
|
|
From: Warp
Subject: Re: The new max trace level behavior in pov3.7 beta 22
Date: 4 Sep 2007 11:05:55
Message: <46dd7453@news.povray.org>
|
|
|
| |
| |
|
|
Rune <new### [at] runevisioncom> wrote:
> I don't have particular scenes in mind, but the need for it is just as real
> as a ned for an adjustable max_trace_level. If it was just a matter of
> avoiding infinite trace loops, a fixed max_trace_level of, say 255, with no
> option of setting it lower, would be fine. But it's not just about that, and
> this is no different if the ray goes straight through or bended.
If the trace level was not limited then reflecting/refracting objects
could cause an infinite loop. That's the main reason why the trace level
is limited.
However, objects which do not reflect nor refract cannot cause an infinite
loop.
But perhaps it might be a good idea to be able to limit the number of
transparent objects traced, if needed...
--
- Warp
Post a reply to this message
|
|
| |
| |
|
|
From: Tim Attwood
Subject: Re: The new max trace level behavior in pov3.7 beta 22
Date: 4 Sep 2007 19:45:59
Message: <46ddee37$1@news.povray.org>
|
|
|
| |
| |
|
|
> You should make a proper bug report.
OK, I put in a bugreport.
Thanks for the work on pass-thru rays.
Might be nice to be able to put a number on it
like max_trace_level, but overall it seems
like a good idea.
Post a reply to this message
|
|
| |
| |
|
|
From: Thomas de Groot
Subject: Re: The new max trace level behavior in pov3.7 beta 22
Date: 10 Sep 2007 07:55:23
Message: <46e530ab@news.povray.org>
|
|
|
| |
| |
|
|
"Chambers" <ben### [at] pacificwebguycom> schreef in bericht
news:46dd0474@news.povray.org...
> You should know that posting "Please test this" in these newsgroups is
> tantamount to saying "Please try to break this" :)
>
...and that is good scientific practice, according to Karl Popper :-)
Thomas
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
