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Hi,
I have a pov-scene (the box of my previous question regarding rendering time)
which fits nicely on my 1280x1024 display.
Now I added a second screen to my computer-setup and would like to use the
pov-scene as a background.
I expected that I should set the right vector for this:
camera {
right (1280*2/1024)*x
location <2.5, 2.5, -15> look_at<5, 5, 0>
}
but that doesn't work: instead of a box in the middle of the screen (width the
width of 1 screen so to say) the box gets spread out of both screens, from the
left to the right.
How do I fix that?
Thanks in advance!
Folkert
p.s. I rewrote that box-with-holes script to not use CSG which speeds it up
dramatically. if anyone is interested in the java program which generates it
then contact me### [at] folkert mobiel@gmail.com
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Le 03/08/2011 15:50, folkert nous fit lire :
> Hi,
>
> I have a pov-scene (the box of my previous question regarding rendering time)
> which fits nicely on my 1280x1024 display.
> Now I added a second screen to my computer-setup and would like to use the
> pov-scene as a background.
> I expected that I should set the right vector for this:
> camera {
> right (1280*2/1024)*x
> location <2.5, 2.5, -15> look_at<5, 5, 0>
> }
> but that doesn't work: instead of a box in the middle of the screen (width the
> width of 1 screen so to say) the box gets spread out of both screens, from the
> left to the right.
> How do I fix that?
> Thanks in advance!
You move from an aspect ratio of 5:4 to a ratio of 10:4
If you adjust the right vector, you will be stretching the view (defined
by a default angle with the classical camera).
+----+
|A |
| Z| <<<< This is your Original picture & view.
+----+
+--------+
| |
| | <<< This would be the new picture.
+--------+
Changing the right would keep the same view and push it in the new picture.
+--------+
|AA |
| ZZ| (notice: double horizontal "pixel" size)
+--------+
Keeping the same right would put the old view at the center of the new
screen, extending both sides (assuming the scene does provide some
additional.
+--------+
| |A | |
| | Z| |
+--------+
You might want to play with the visible angle of view directly, using
angle [integer in degres] in the camera after right/...
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On 3/08/2011 18:11, Le_Forgeron wrote:
> You move from an aspect ratio of 5:4 to a ratio of 10:4
which he should, as the required image has a ratio of 10:4
> If you adjust the right vector, you will be stretching the view (defined
> by a default angle with the classical camera).
>
> +----+
> |A |
> | Z|<<<< This is your Original picture& view.
> +----+
>
> +--------+
> | |
> | |<<< This would be the new picture.
> +--------+
>
> Changing the right would keep the same view and push it in the new picture.
actually, no
changing the right-vector changes the view, keeping the original
right-vector would do what you describe
Everything in the camera-statement changes the view, not the image. The
image is defined by your ini-settings. So if you define your camera as
having a ratio of 5:4, and then render it as an image of ratio 10:4,
your image will be stretched.
folkert: your camera definition should work, but you probably have
another camera somewhere in the same scene, defined after the one you
changed.
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