[MINC-users] Problems with ray_trace and object files

Sulantha Sanjeewa sulantha.s at gmail.com
Fri Sep 11 19:00:23 EDT 2015


Hi Gabriel,
I encountered the same problem. This is because of a version problem of ray
trace.
The newer version however has the problem. My solution was to use a older
version of ray trace. Unfortunately I do not have the version umber, but
try with a old version of minc toolkit.
Best regards,
Sulantha.

On Fri, Sep 11, 2015 at 4:11 PM, Gabriel A. Devenyi <gdevenyi at gmail.com>
wrote:

> Hi all,
>
> I’m trying to generate some images of CIVET-generated left and right
> hemispheres using ray_trace
> like:
>
> > ray_trace -output left_lateral.rgb left_average.obj -size 1000 1000
> -crop -sup 3 -bg black -left
>
> As I understand, I would expect this to generate a view of the left
> hemisphere, from the left side, so it should be a lateral view.
>
> For some reason, this seems to generate an image that is “upside down”
>
> If I run:
>
> > convert left_lateral.rgb -flip left_lateral.png
>
> It’s fixed and looks correct.
>
> Am I missing something about ray_trace? Or is this a bug?
>> --
> Gabriel A. Devenyi B.Eng. Ph.D.
> Research Computing Associate
> Computational Brain Anatomy Laboratory
> Cerebral Imaging Center
> Douglas Mental Health University Institute
> McGill University
> t: 514.761.6131x4781
> e: gdevenyi at gmail.com
> _______________________________________________
> MINC-users at bic.mni.mcgill.ca
> http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
>


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