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I've created some illustrations showing different graphical projections.
https://commons.wikimedia.org/wiki/File:Graphical_projection_comparison.png
I'm trying to figure out how to illustrate "cabinet projection" however.
The existing "cavalier projection" is nearly identical, except that
"cabinet projection" is half as long in the z direction. I could shrink
the model of the house along this axis, but I'd rather find a way that
only alters the camera statement. Any ideas?
Here is the camera code I use for "cabinet projection":
#local cam_area = 2 * 5/4;
#local cam_loca = vnormalize(-z/sind(045)+y-x) * cam_dist;
#local cam_dirc = vnormalize(+z/sind(045)-y+x);
#local cam_rgvc = +x * cam_area;
#local cam_upvc = +y * cam_area;
#local cam_tran = transform
{
translate +y * cam_move
}
// requires the updated version of "screen.inc" available here:
// http://news.povray.org/povray.text.scene-files/thread
/%3C581be4f1%241%40news.povray.org%3E/
#include "screen.inc"
Set_Camera_Orthographic(true)
Set_Camera_Transform(cam_tran)
Set_Camera_Alt(cam_loca, cam_dirc, cam_rgvc, cam_upvc)
Thanks!!
Michael
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Le 12/05/2019 à 03:20, Mike Horvath a écrit :
> I've created some illustrations showing different graphical projections.
>
> https://commons.wikimedia.org/wiki/File:Graphical_projection_comparison.png
>
> I'm trying to figure out how to illustrate "cabinet projection" however.
> The existing "cavalier projection" is nearly identical, except that
> "cabinet projection" is half as long in the z direction. I could shrink
> the model of the house along this axis, but I'd rather find a way that
> only alters the camera statement. Any ideas?
>
> Here is the camera code I use for "cabinet projection":
>
> #local cam_area = 2 * 5/4;
> #local cam_loca = vnormalize(-z/sind(045)+y-x) * cam_dist;
> #local cam_dirc = vnormalize(+z/sind(045)-y+x);
> #local cam_rgvc = +x * cam_area;
> #local cam_upvc = +y * cam_area;
> #local cam_tran = transform
> {
> translate +y * cam_move
> }
>
> // requires the updated version of "screen.inc" available here:
> // http://news.povray.org/povray.text.scene-files/thread
> /%3C581be4f1%241%40news.povray.org%3E/
> #include "screen.inc"
>
> Set_Camera_Orthographic(true)
> Set_Camera_Transform(cam_tran)
> Set_Camera_Alt(cam_loca, cam_dirc, cam_rgvc, cam_upvc)
>
> Thanks!!
>
> Michael
Old, very old experiment, at http://jgrimbert.free.fr/pov/labo/
I did not test with latest povray.
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On 5/12/2019 7:46 AM, Le_Forgeron wrote:
> Le 12/05/2019 à 03:20, Mike Horvath a écrit :
>> I've created some illustrations showing different graphical projections.
>>
>> https://commons.wikimedia.org/wiki/File:Graphical_projection_comparison.png
>>
>> I'm trying to figure out how to illustrate "cabinet projection" however.
>> The existing "cavalier projection" is nearly identical, except that
>> "cabinet projection" is half as long in the z direction. I could shrink
>> the model of the house along this axis, but I'd rather find a way that
>> only alters the camera statement. Any ideas?
>>
>> Here is the camera code I use for "cabinet projection":
>>
>> #local cam_area = 2 * 5/4;
>> #local cam_loca = vnormalize(-z/sind(045)+y-x) * cam_dist;
>> #local cam_dirc = vnormalize(+z/sind(045)-y+x);
>> #local cam_rgvc = +x * cam_area;
>> #local cam_upvc = +y * cam_area;
>> #local cam_tran = transform
>> {
>> translate +y * cam_move
>> }
>>
>> // requires the updated version of "screen.inc" available here:
>> // http://news.povray.org/povray.text.scene-files/thread
>> /%3C581be4f1%241%40news.povray.org%3E/
>> #include "screen.inc"
>>
>> Set_Camera_Orthographic(true)
>> Set_Camera_Transform(cam_tran)
>> Set_Camera_Alt(cam_loca, cam_dirc, cam_rgvc, cam_upvc)
>>
>> Thanks!!
>>
>> Michael
>
> Old, very old experiment, at http://jgrimbert.free.fr/pov/labo/
>
> I did not test with latest povray.
>
Very good, thank you.
Michael
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