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"StephenS" <nomail@nomail> wrote in message
news:web.489593a615676239d1f8364e0@news.povray.org...
> If there are no objections I'll start to familiarise myself with the
> 'camera/incdemo' group.
> When we seem to have agreed upon the requested changes, I'll start a new
> thread
> for this group of files, so I can list my progress or problems.
>
> Stephen S
>
>
i'm cool wid dat
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I think we are close to wrapping up the review of v3.7 example scene files
so I wanted to summarize and get our plan "blessed" before proceeding with
the actual work.
Division of work: This is how the scenes have been divided up.
advanced/animations (71)
camera/incdemo (74) (Stephen has already spoken up for this
group)
interior/language/lights/objectmods/qtvr/radiosity (69)
objects/portfolio (78)
textures (73)
Image size and format: 768 x 576 (4:3 aspect ratio) PNG. Using the file
advanced/grenadine as a test case I noticed a difference in the preview
window image (to dark) and the final png image file (to light). This led me
to believe that I hadn't set display_gamma correctly. After some empirical
testing this is what I came up with for my quickres.ini file:
[768x576, AA 0.3]
Width=768
Height=576
Antialias=On
Antialias_Threshold=0.3
Display_Gamma=2.3
I'm going to post the image over in the images group. One last thing about
image quality. The rim of the glass had jagged edges until I used +a0.1
+r4 ... we DO want to resolve quality issues like that don't we?
Scene file edits: This is how assumed_gamma and source file versioning is
handled.
This example (below) has an assumed_gamma setting, so in order to leverage
off the 3.7 default behavior the #version 3.5 directive has been
conditionally excluded, as well as the assumed_gamma setting in the global
settings block. Additionally any mention of version in header comments have
been deleted , and a date stamp with initials was added. Example files that
don't have assumed_gamma in global settings block should be (if not already)
branded #version 3.5 as the default behavior is gamma correction off.
---begin scene file frag
// Persistence of Vision Ray Tracer Scene Description File
// File: grenadine.pov
// Desc: Glass with liquid
// Date: 1999/06/04
// Auth: Ingo Janssen
//
// -w320 -h240
// -w800 -h600 +a0.3
// Updated: 04Aug2008(jh) for v3.7 distribution
#if (version < 3.6)
#version 3.5
#end
#include "glass.inc"
#include "lemon.inc"
global_settings {
// conditionally comply with gamma correction handling
#if (version < 3.6)
assumed_gamma 1.0
#end
max_trace_level 5
photons {
spacing 0.01 // higher value 'lower' quality, faster parsing.
autostop 0
jitter 0.5
max_trace_level 15
}
}
--- end scene file frag
Notice from the scene frag above that it calls and include "lemon.inc" which
is an include in scenes/advanced. It had the #version directive in the body
of that include. I used the following common version preservation method
used in the application includes.
--- begin code frag
// Added to comply with common version preservation scheme
// 04Aug2008 (jh)
#ifndef(Lemon_Inc_Temp)
#declare Lemon_Inc_Temp=version;
#version 3.5;
#ifdef(View_POV_Include_Stack)
#debug "including lemon.inc\n"
#end
// code body goes here
// Added to comply with common version preservation scheme
// 04Aug2008 (jh)
#version Lemon_Inc_Temp;
#end
--- end code frag
Include files review:
The include files have been reviewed and since they have a scheme that
keeps the calling source file from inheriting it's #version branding it's
been suggested that this is a moot point to change the #version branding for
now. In other words it's purely a housekeeping issue for now. Since we're on
the topic of includes, I've heard no reply on my proposal to change the
textures in glass_old.inc to materials, and remove the I_Glass warning in
glass.inc. The above scene file frag calls glass.inc so a minor mod to the
scene file was in order. The scene file rendered fine. I don't want to do
this because silence implies agreement. Someone yea or nay this change
please!
Have I forgotten anything?
Jim
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Jim Holsenback wrote:
> advanced/grenadine as a test case I noticed a difference in the preview
> window image (to dark) and the final png image file (to light). This led me
Please be aware that the PNG output images have the inverse gamma
written into the file header and will appear differently between
viewers that do and don't support using this value.
> I'm going to post the image over in the images group. One last thing about
> image quality. The rim of the glass had jagged edges until I used +a0.1
> +r4 ... we DO want to resolve quality issues like that don't we?
I suspect so, if it doesn't involve too much work.
> #if (version < 3.6)
Should that be < 3.6 or < 3.7 ?
> the topic of includes, I've heard no reply on my proposal to change the
> textures in glass_old.inc to materials, and remove the I_Glass warning in
> glass.inc. The above scene file frag calls glass.inc so a minor mod to the
> scene file was in order. The scene file rendered fine. I don't want to do
> this because silence implies agreement. Someone yea or nay this change
> please!
I haven't read it in detail (during weekdays I don't get a lot of
time) but as long as it doesn't break any existing third-party scenes
I'm OK with the change.
thanks,
-- Chris
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"Chris Cason" <del### [at] deletethistoo povrayorg> wrote in
message news:489a8737$1@news.povray.org...
> Jim Holsenback wrote:
>> advanced/grenadine as a test case I noticed a difference in the preview
>> window image (to dark) and the final png image file (to light). This led
>> me
>
> Please be aware that the PNG output images have the inverse gamma
> written into the file header and will appear differently between
> viewers that do and don't support using this value.
yes .... i was using GIMP
>> I'm going to post the image over in the images group. One last thing
>> about
>> image quality. The rim of the glass had jagged edges until I used +a0.1
>> +r4 ... we DO want to resolve quality issues like that don't we?
>
> I suspect so, if it doesn't involve too much work.
>
>> #if (version < 3.6)
>
> Should that be < 3.6 or < 3.7 ?
i defer to you .... i'll reread the doc and see if i can figure out what led
me to believe that the default behavior for gamma correction has been around
since 3.6.1
>
>> the topic of includes, I've heard no reply on my proposal to change the
>> textures in glass_old.inc to materials, and remove the I_Glass warning in
>> glass.inc. The above scene file frag calls glass.inc so a minor mod to
>> the
>> scene file was in order. The scene file rendered fine. I don't want to do
>> this because silence implies agreement. Someone yea or nay this change
>> please!
>
> I haven't read it in detail (during weekdays I don't get a lot of
> time) but as long as it doesn't break any existing third-party scenes
> I'm OK with the change.
these scene files have glass.inc but MAY not call glass_old textures. i'll
take ownership for making those changes.
./advanced/desk.pov
./advanced/grenadine.pov
./advanced/wineglass.pov
./advanced/woodbox.pov
./advanced/blocks/stackertransp.pov
./advanced/fish13/fish13.pov
./animations/boing/glsbng.pov
./incdemo/glasses/glass.pov
./incdemo/glasses/samp_demo.pov
./interior/ballbox1.pov
./interior/iortest.pov
./interior/magglass.pov
./lights/glassthing.pov
./lights/phot_met_glass.pov
Stephen I owe you two files as you're already working on the incdemo files.
I'm going to speak up for the advanced/animations group of files. I will
deal with the remaining files when someone speaks up for the groups that
they are in. I will also post the revised glass/glass_old.inc files so both
of you (Stephen/Sabrina) can pick those up. Zip format OK? Give me a couple
of days to get this done as I'm juggling several things (feast or famine)
right now.
Jim
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"Jim Holsenback" <jho### [at] hotmailcom> wrote in message
news:489ac9a9@news.povray.org...
> these scene files have glass.inc but MAY not call glass_old textures. i'll
> take ownership for making those changes.
>
> ./advanced/desk.pov
> ./advanced/grenadine.pov
> ./advanced/wineglass.pov
> ./advanced/woodbox.pov
> ./advanced/blocks/stackertransp.pov
> ./advanced/fish13/fish13.pov
> ./animations/boing/glsbng.pov
> ./incdemo/glasses/glass.pov
> ./incdemo/glasses/samp_demo.pov
> ./interior/ballbox1.pov
> ./interior/iortest.pov
> ./interior/magglass.pov
> ./lights/glassthing.pov
> ./lights/phot_met_glass.pov
i posted these scene files as well as glass.inc and glass_old.inc are in a
zip file over in the text.scene-files group
jim
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"Jim Holsenback" <jho### [at] hotmailcom> wrote in message
news:489d58bf$1@news.povray.org...
>
> "Jim Holsenback" <jho### [at] hotmailcom> wrote in message
> news:489ac9a9@news.povray.org...
>> these scene files have glass.inc but MAY not call glass_old textures.
>> i'll take ownership for making those changes.
>>
>> ./advanced/desk.pov
>> ./advanced/grenadine.pov
>> ./advanced/wineglass.pov
>> ./advanced/woodbox.pov
>> ./advanced/blocks/stackertransp.pov
>> ./advanced/fish13/fish13.pov
>> ./animations/boing/glsbng.pov
>> ./incdemo/glasses/glass.pov
>> ./incdemo/glasses/samp_demo.pov
>> ./interior/ballbox1.pov
>> ./interior/iortest.pov
>> ./interior/magglass.pov
>> ./lights/glassthing.pov
>> ./lights/phot_met_glass.pov
>
> i posted these scene files as well as glass.inc and glass_old.inc are in a
> zip file over in the text.scene-files group
i discovered a typo in comments that's been corrected ..... NEW zip file
posted
Jim
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"Jim Holsenback" <jho### [at] hotmailcom> wrote in message
news:489ac9a9@news.povray.org...
> I'm going to speak up for the advanced/animations group of files.
i'm done with edits of this section, and i've taking a different approach on
my work flow. i'm going to just do edits for now as the render portion is
going to be a bottleneck on my machine. most images rendered fairly quickly
however some took > 1 hr at that rate i ought to finish up sometime before
next summer ;-)
i'm going to start edits on this group:
interior/language/lights/objectmods/qtvr/radiosity
Jim
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Jim Holsenback wrote:
> "Jim Holsenback" <jho### [at] hotmailcom> wrote in message
> news:489ac9a9@news.povray.org...
>> I'm going to speak up for the advanced/animations group of files.
>
> i'm done with edits of this section, and i've taking a different approach on
> my work flow. i'm going to just do edits for now as the render portion is
> going to be a bottleneck on my machine. most images rendered fairly quickly
> however some took > 1 hr at that rate i ought to finish up sometime before
> next summer ;-)
>
> i'm going to start edits on this group:
> interior/language/lights/objectmods/qtvr/radiosity
>
> Jim
>
>
I'll jump in and take the objects/portfolio set to render. And I'll see
about getting/keeping access to an animation lab, and running it there
as well.
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"Jim Holsenback" <jho### [at] hotmailcom> wrote in message
news:489dcf22@news.povray.org...
> i'm going to start edits on this group:
> interior/language/lights/objectmods/qtvr/radiosity
done with those .... i'll start on textures.
Cheers
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Stephen & Sabrina: I'm done with all my edits and have rendered all the
files in the textures directory.
Chris: do you have some disc space that we can start putting the scene
source files and images?
Jim
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