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On 09/14/2016 06:07 PM, Bald Eagle wrote:
> tth <tth### [at] none invalid> wrote:
>
>> Somethink like that ?
>> http://la.buvette.org/vrac/composite.avi
>
> That is wicked cool.
> A very nice effect that probably took a lot of work to get to work, and likely a
> lot of rendering and post-processing time to make into the full animation.
No postprocessing (except the green text made with mogrify) but some
programming (I'm an unixman :) for driving povray.
This job was made of a number of sequence from the same univers,
with various angle of view.
1) I have a text file with the name of sequence and the number of
frames in that sequence who is transcoded in pov-csv file :
credits aac 200
descente desc 250
eglise egl 300
reponses.data -> awk -> reponses.text
"credits", "aac_", 200.0,
"descente", "desc", 250.0,
"eglise", "egl_", 300.0,
2) Drived by the first file, a Perl script make all the picz of
all the sequences, so I get a bunche of .png with names like
img/desc0000.png
img/desc0001.png
img/desc0002.png
3) In the file composite.pov, I get the frame number with the
clock variable, and I load the picz of others seqs with POV
code like that :
#fopen reponses "reponses.text" read
#while (defined(reponses))
#read (reponses, anim, v1, v2)
#declare foo = strcmp(modele, anim);
#if (foo = 0.0)
#declare ltr = v1;
#declare nbr = v2;
#end
#end
#fclose reponses
[...]
#declare idx = int(mod(clock, nbr));
#declare sidx = str(idx, -4, 0);
#declare nompng = concat("img/", ltr, sidx, ".png");
4) And I can use the pre-computed frame as an image_map
with a macro like that :
#macro Ecran(image)
box { <-4, 0.07, -3>, <4, -0.07, 3> }
pigment {
image_map { png image }
rotate -x*90
translate <-0.5, 0, -0.5>
scale <8, 1, 6>
}
[...]
The macro call :
union {
object { Ecran(nompng) }
object { support }
}
tTh.
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