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Can someone refresh my memory,
we have an object OBJ which is in front of the camera, how to auto focus on
it?
camera {
#local POS = <1,2,3>; // camera position
location <POS>
#local FOC = .... ; // get the focal point
blure_samples ...
focal_point FOC
rotate ... translate.. // <-- some easy way to have this working too?
// lets assume I grouped thoes into a #define TRANS = transform { .... }
}
--
Raf256
"Ustawowe ograniczenie liczby aptek to nie jest centralne sterowanie."
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> we have an object OBJ which is in front of the camera, how to auto focus
> on
> it?
>
> camera {
> #local POS = <1,2,3>; // camera position
Dosen't "look at" do that? You still have to set the depth of focus of
course, with the aperture.
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Raf256 nous apporta ses lumieres en ce 08-03-2007 12:10:
> Can someone refresh my memory,
> we have an object OBJ which is in front of the camera, how to auto focus on
> it?
> camera {
> #local POS = <1,2,3>; // camera position
> location <POS>
> #local FOC = .... ; // get the focal point
> blure_samples ...
> focal_point FOC
> rotate ... translate.. // <-- some easy way to have this working too?
> // lets assume I grouped thoes into a #define TRANS = transform { .... }
> }
Set focal_point to the location of that object. Easy if the object is created
around the origin then translated, set the translation vector in a #declare and
use that same value for the focal_point.
Something like:
#declare ObjLoc = <X,Y,Z>;
object{YourObject translate ObjLoc}
camera{... focal_point ObjLoc...}
--
Alain
-------------------------------------------------
A Bill of Rights is what the people are entitled to against every
government, and what no just government should refuse, or rest on inference.
Thomas Jefferson
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Alain <45f0a97a$1@news.povray.org> Friday 09 of March 2007 01:25
> Set focal_point to the location of that object. Easy if the object is
> created around the origin then translated, set the translation vector in a
> #declare and use that same value for the focal_point.
Not exacly.
I ment - with using Trace to find out the *point on surface* of the object
witch is vissible in middle of camera view
--
Raf256
"Ustawowe ograniczenie liczby aptek to nie jest centralne sterowanie."
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Raf256 nous apporta ses lumieres en ce 09-03-2007 05:40:
> Alain <45f0a97a$1@news.povray.org> Friday 09 of March 2007 01:25
>> Set focal_point to the location of that object. Easy if the object is
>> created around the origin then translated, set the translation vector in a
>> #declare and use that same value for the focal_point.
> Not exacly.
> I ment - with using Trace to find out the *point on surface* of the object
> witch is vissible in middle of camera view
In that case, trace from the camera location along the direction vector to your
point of interest. Use the returned value as the focal_point of your camera.
Call the trace with normal vector and test it to make sure you don't miss your
object.
--
Alain
-------------------------------------------------
Did you know that Al Capone's business card said he was a used furniture dealer.
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