POV-Ray : Newsgroups : povray.general : camera/image output question : Re: camera/image output question Server Time
4 Aug 2024 12:13:18 EDT (-0400)
  Re: camera/image output question  
From: ross litscher
Date: 10 May 2003 20:58:37
Message: <3EBD94D9.8030003@osu.edu>
ross litscher wrote:
> Christopher James Huff wrote:
> 
>> In article <3EB### [at] osuedu>, ross litscher 
>> <lit### [at] osuedu> wrote:
>>
>>
>>> at image dimensions 320x240, the resulting box is roughly 50x20 
>>> pixels with tons of space around the image. what would I have to do 
>>> to render an output image of 50x20 pixels that is filled perfectly 
>>> with exactly one instance of the box and no "empty space" around the 
>>> box. I hope I made this sort of clear. The purpose of this is so i 
>>> don't have to crop the image in some other editing program.
>>
>>
>>
>> You do realize that this is going to either leave part of the box out 
>> of the field of view or distort it to fit, don't you? Anyway, you want 
>> the right and up keywords, as well as an orthographic camera:
>>
>> camera {
>>     orthographic
>>     location <0, 0,-8>
>>     look_at <0, 0, 0>
>>     right x*0.5 up y*0.25
>>     angle 45
>> }
>>
>> No matter what resolution you render at, the box will be deformed to fit.
>>
> 
> 
> no, i didnt realize it would be deformed. i'll see how it works anyway, 
> thanks. maybe some script to crop as i need would just be better, i 
> guess i'll find out :)
> 
> thanks christopher.
> 
> 

changing camera location to <0, 0, 1.15> (which is the width of the 
object) resulted in what i expected and hoped to do, and looks just fine 
when the output image is some multiple of +W50 +H22.

thanks again.


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.