Hi, all
   I want more details about the object in the scene, so I need more
intersection points. Can I set more rays in one pixel? Thanks

Best Regards
Wu Yang

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In article <3ddf62c8$1@news.povray.org> , "Wu Yang" <wya### [at] cswrightedu> 
wrote:

> Hi, all
>    I want more details about the object in the scene, so I need more
> intersection points. Can I set more rays in one pixel? Thanks

Read the documentation about antialiasing.

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

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In article <3ddf62c8$1@news.povray.org>,
 "Wu Yang" <wya### [at] cswrightedu> wrote:

>    I want more details about the object in the scene, so I need more
> intersection points. Can I set more rays in one pixel? Thanks

Extremely simple: render at a higher resolution. Won't require any 
changes to the patch. More pixels, more rays per pixel, same effect of 
more rays.
It is really sounding more and more like a patch just isn't the right 
solution though...nothing you've described can't be done with plain 
scene description language.
As someone mentioned, antialiasing takes multiple samples per pixel, but 
I don't think this is what you want...since I don't really know what 
you're doing, I can't really tell. It will probably take at least some 
modifications to the patch.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/

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Thank you for your reply.

>I don't really know what you're doing, I can't really tell. It will
probably take at least some modifications to the >patch.
>
Now I need set the camera far from the object, so the object is very small.
But I still want to get enough intersection points. Can I set the resolution
as high as I want and what modifications do I need? Thanks.

Best Rrgards
Wu Yang

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Wu Yang wrote:

> Thank you for your reply.

> Now I need set the camera far from the object, so the object is very small.
> But I still want to get enough intersection points. 


Distance of camera to object may be irrelevant with an orthographic 
camera. The angle of the camera might rather interfer too.
(telephoto lens have a very small angle).

But if your object is only 10x10 pixels on the final renders, you won't 
be able to see much details. Using Antialiasing will just shoot more 
rays at it and performs some integration, but at the end a pixel can 
only have one colour.
Increasing the image size would be better for the details (especially if 
you keep antialiasing too!).

> Can I set the resolution
> as high as I want and what modifications do I need? Thanks.


You can set the image size as big as you want (reasonnably for your 
computer anyway) and there is no need for any modification.
See the +H and +W switches in the pov-help.

Image resolution of 10000 x 10000 have been done with Povray.
You just need the disc space to store it...

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