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Fabian Brau wrote:
>
> Hello omniVERSE,
>
> this is easy to do but this take time. Here is the method:
> 1) I render completely the first image. I choose the area which I will
> render, say the door. I put this into the command line.
> 2) I begin the animation rendering. So I get a given number (depend on
> animation) of partial image which are on the first row, with black color
> around.
> 3) I take each image into corel photo paint. With a special tool I
> select the non-black area. I copy and paste into a new document and save
> it into bmp (for example). And I have myst first image with good
> dimension.
> 4) I do it for each image (a nightmare :)).
> 5) I compute the animation with the images.
> 6) In my program (a game) I load the first image (a complete image).
> When I click, say on the door, I load the video which I place at the
> right position on my image. The complete image don't disappear (I choose
> a correct update method for updating the screen) and the video play at
> the correct place. This work perfectly well (I have tested) but take
> time to do the animation :).
>
> If someone which know well the code (perhaps Nathan) could look at it
> (when one render a piece of an image, the output image is only this
> piece without black color around) this could be cool :)
>
> Fabian.
Why not simply use multiple camera's and zoom in on the area you want for
a particular animation sequence ? It is not that difficult to position a
camera.
--
Ken Tyler - 1100+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/
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Fabian Brau wrote:
>
> Hello omniVERSE,
>
> this is easy to do but this take time. Here is the method:
> 1) I render completely the first image. I choose the area which I will
> render, say the door. I put this into the command line.
> 2) I begin the animation rendering. So I get a given number (depend on
> animation) of partial image which are on the first row, with black color
> around.
> 3) I take each image into corel photo paint. With a special tool I
> select the non-black area. I copy and paste into a new document and save
> it into bmp (for example). And I have myst first image with good
> dimension.
> 4) I do it for each image (a nightmare :)).
> 5) I compute the animation with the images.
> 6) In my program (a game) I load the first image (a complete image).
> When I click, say on the door, I load the video which I place at the
> right position on my image. The complete image don't disappear (I choose
> a correct update method for updating the screen) and the video play at
> the correct place. This work perfectly well (I have tested) but take
> time to do the animation :).
>
> If someone which know well the code (perhaps Nathan) could look at it
> (when one render a piece of an image, the output image is only this
> piece without black color around) this could be cool :)
>
> Fabian.
>
> omniVERSE wrote:
> >
I understand you're using this for a game. Do you program that? If so, it
shouldn't be hard to do what you want programmatically.
I don't know exactly what you need, but perhaps this may help:
I'm using the same technique you describe for a project I'm working on. For that
I had to make several simple utilities. One of those takes a series of images
and cuts out the relevant part. In my case I need all the cut-outs on a strip so
it pastes them into one image, but it'd be easy to make it so it saves them as
seperate files. In fact I have another utility which will take a strip of
images, cuts it into frames and saves those seperately. If you think this could
help let me know.
Ciao!
Remco
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Well, I think that it is really 'yes'. But tricky.
When I checked, many many moons ago, if you output .TGA files, then POV-Ray did
the right thing. The bits stored start on that first line, but the image header
itself should have an offset. The TGA format has X and Y in addition to Width
and Height. I used to take advantage of this for sprites and compositing.
Anyway, given image tools that do the proper thing, and recognize the offsets
in TGA headers, then you could use that to save time on renderings... (TGA is
not hard. You can program that yourself...)
EXCEPT...
If you have an animation, and are raytracing, it is very possible that other
portions of the image might change. Reflections, shadows, etc. This would then
throw things off for the look and quality of your animation.
omniVERSE wrote:
> No. And since the partial images get put on the first row I don't see any
> feasible way of simply chroma-keying the black backgrounds out, which if you
> had any black in the scene itself would also get blanked out anyway.
[SNIP]
> Fabian Brau <fab### [at] umh acbe> wrote in message
> news:3819A015.128291F5@umh.ac.be...
> > Hello,
> >
> > I have seen long time ago that one can render only a part of an image
> > (you put some command in the command line). This is really cool to
> > render some animation, for example:
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Hello Remco,
yes, I do all in my game :), I program in Java (not quick language, but
for a point-and-click game it is enough). But i never work with image
file before! If you could give me an utility which can cut a given part
(which I choose), al ways the same, of several (hundreds) images, this
could be great for me :).
I am using win 98.
Thank you very much!!
Fabian.
> I understand you're using this for a game. Do you program that? If so, it
> shouldn't be hard to do what you want programmatically.
> I don't know exactly what you need, but perhaps this may help:
> I'm using the same technique you describe for a project I'm working on. For that
> I had to make several simple utilities. One of those takes a series of images
> and cuts out the relevant part. In my case I need all the cut-outs on a strip so
> it pastes them into one image, but it'd be easy to make it so it saves them as
> seperate files. In fact I have another utility which will take a strip of
> images, cuts it into frames and saves those seperately. If you think this could
> help let me know.
>
> Ciao!
>
> Remco
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On Wed, 03 Nov 1999 10:34:49 +0100, Fabian Brau wrote:
>If you could give me an utility which can cut a given part
>(which I choose), al ways the same, of several (hundreds) images, this
>could be great for me :).
>I am using win 98.
The netpbm utilities can do this, among other things. For a win32 version,
go to ftp://ftp.uci.agh.edu.pl/pub/tex/systems/win32/web2c/ . These are
command-line utilities, so they're perfectly suited to scripting with a
batch file or your favorite other scripting language. The documentation is
in Unix man format, but you can find an HTML version at
http://www.ctyme.com/linuxdoc.htm . The programs you're likely to be
interested in are tgatoppm, pnmcut, and ppmtotga. All are in section 1 of
the manpages.
--
These are my opinions. I do NOT speak for the POV-Team.
The superpatch: http://www2.fwi.com/~parkerr/superpatch/
My other stuff: http://www2.fwi.com/~parkerr/traces.html
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Thanks Ron,
but bmptoppm don't work for me :(
Fabian.
Ron Parker wrote:
>
> On Wed, 03 Nov 1999 10:34:49 +0100, Fabian Brau wrote:
> >If you could give me an utility which can cut a given part
> >(which I choose), al ways the same, of several (hundreds) images, this
> >could be great for me :).
> >I am using win 98.
>
> The netpbm utilities can do this, among other things. For a win32 version,
> go to ftp://ftp.uci.agh.edu.pl/pub/tex/systems/win32/web2c/ . These are
> command-line utilities, so they're perfectly suited to scripting with a
> batch file or your favorite other scripting language. The documentation is
> in Unix man format, but you can find an HTML version at
> http://www.ctyme.com/linuxdoc.htm . The programs you're likely to be
> interested in are tgatoppm, pnmcut, and ppmtotga. All are in section 1 of
> the manpages.
>
> --
> These are my opinions. I do NOT speak for the POV-Team.
> The superpatch: http://www2.fwi.com/~parkerr/superpatch/
> My other stuff: http://www2.fwi.com/~parkerr/traces.html
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And tgatoppm seems work but no output file?? I have search in my hard
disk, nothing!!
Fabian.
Fabian Brau wrote:
>
> Thanks Ron,
>
> but bmptoppm don't work for me :(
>
> Fabian.
>
> Ron Parker wrote:
> >
> > On Wed, 03 Nov 1999 10:34:49 +0100, Fabian Brau wrote:
> > >If you could give me an utility which can cut a given part
> > >(which I choose), al ways the same, of several (hundreds) images, this
> > >could be great for me :).
> > >I am using win 98.
> >
> > The netpbm utilities can do this, among other things. For a win32 version,
> > go to ftp://ftp.uci.agh.edu.pl/pub/tex/systems/win32/web2c/ . These are
> > command-line utilities, so they're perfectly suited to scripting with a
> > batch file or your favorite other scripting language. The documentation is
> > in Unix man format, but you can find an HTML version at
> > http://www.ctyme.com/linuxdoc.htm . The programs you're likely to be
> > interested in are tgatoppm, pnmcut, and ppmtotga. All are in section 1 of
> > the manpages.
> >
> > --
> > These are my opinions. I do NOT speak for the POV-Team.
> > The superpatch: http://www2.fwi.com/~parkerr/superpatch/
> > My other stuff: http://www2.fwi.com/~parkerr/traces.html
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Ok this work!! But I don't use enough dos :)! I forgot this:
tgatoppm name.tga >name.ppm :) I didn't put >name.ppm
stupid no? :)
Thanks Thanks Thanks .... (my fingers burn) Ron!!!
Fabian.
Fabian Brau wrote:
>
> And tgatoppm seems work but no output file?? I have search in my hard
> disk, nothing!!
>
> Fabian.
>
> Fabian Brau wrote:
> >
> > Thanks Ron,
> >
> > but bmptoppm don't work for me :(
> >
> > Fabian.
> >
> > Ron Parker wrote:
> > >
> > > On Wed, 03 Nov 1999 10:34:49 +0100, Fabian Brau wrote:
> > > >If you could give me an utility which can cut a given part
> > > >(which I choose), al ways the same, of several (hundreds) images, this
> > > >could be great for me :).
> > > >I am using win 98.
> > >
> > > The netpbm utilities can do this, among other things. For a win32 version,
> > > go to ftp://ftp.uci.agh.edu.pl/pub/tex/systems/win32/web2c/ . These are
> > > command-line utilities, so they're perfectly suited to scripting with a
> > > batch file or your favorite other scripting language. The documentation is
> > > in Unix man format, but you can find an HTML version at
> > > http://www.ctyme.com/linuxdoc.htm . The programs you're likely to be
> > > interested in are tgatoppm, pnmcut, and ppmtotga. All are in section 1 of
> > > the manpages.
> > >
> > > --
> > > These are my opinions. I do NOT speak for the POV-Team.
> > > The superpatch: http://www2.fwi.com/~parkerr/superpatch/
> > > My other stuff: http://www2.fwi.com/~parkerr/traces.html
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I have found what is not correct! It seems that bmptoppm and ppmtobmp
work only with 8 bit bmp not 24bit bmp
Fabian.
Fabian Brau wrote:
>
> Thanks Ron,
>
> but bmptoppm don't work for me :(
>
> Fabian.
>
> Ron Parker wrote:
> >
> > On Wed, 03 Nov 1999 10:34:49 +0100, Fabian Brau wrote:
> > >If you could give me an utility which can cut a given part
> > >(which I choose), al ways the same, of several (hundreds) images, this
> > >could be great for me :).
> > >I am using win 98.
> >
> > The netpbm utilities can do this, among other things. For a win32 version,
> > go to ftp://ftp.uci.agh.edu.pl/pub/tex/systems/win32/web2c/ . These are
> > command-line utilities, so they're perfectly suited to scripting with a
> > batch file or your favorite other scripting language. The documentation is
> > in Unix man format, but you can find an HTML version at
> > http://www.ctyme.com/linuxdoc.htm . The programs you're likely to be
> > interested in are tgatoppm, pnmcut, and ppmtotga. All are in section 1 of
> > the manpages.
> >
> > --
> > These are my opinions. I do NOT speak for the POV-Team.
> > The superpatch: http://www2.fwi.com/~parkerr/superpatch/
> > My other stuff: http://www2.fwi.com/~parkerr/traces.html
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Fabian Brau wrote:
>
> Hello Remco,
>
> yes, I do all in my game :), I program in Java (not quick language, but
> for a point-and-click game it is enough). But i never work with image
> file before! If you could give me an utility which can cut a given part
> (which I choose), al ways the same, of several (hundreds) images, this
> could be great for me :).
> I am using win 98.
>
> Thank you very much!!
>
> Fabian.
>
I've sent you the programs, hope they work for you.
Have fun 8)
Remco
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