I'm always amazed when Greg brings out these little gems that have always
existed, but nobody really knew about. I honestly don't think looked at the
man page for ximage before today.
Andy
···
On Wed, May 27, 2015 at 10:44 AM, Greg Ward <[email protected]> wrote:
If you have X11, you can pipe the output of ximage into rtrace and use the
't' key to retrace individual rays. You need to give rtrace the scene
octree and set its -o option to report the information you need, like
"-oms" to report the intersected surface's modifier and name:ximage render.hdr | rtrace -h -oms scene.oct
Cheers,
-GregSent from my iPad
> On May 27, 2015, at 6:33 PM, Guglielmetti, Robert < > [email protected]> wrote:
>
> You could just use the "trace" command in rvu too; it will return the
coordinates of the surface, and then the modifier. But I think Andrei wants
specifically to query the output HDR, not the octree. (?)
>
> - Rob
>
> On 5/27/15, 10:24 AM, "Thomas Bleicher" <[email protected]<mailto: > [email protected]>> wrote:
>
> Andrei
>
> Greg has developed just such a tool. rvu has a command line option that
allows you to query the surface under the cursor. I don't have a Radiance
installation around but you should find it in the man page.
>
> It was either that or a cunning pipe between the output of rvu (view
direction) and rtrace to report the modifier.
>
> On Wed, May 27, 2015 at 10:53 AM, Kolomenski, Andrei (JSC-SF311)[WYLE > INTEG. SCI. & ENG.] <[email protected]<mailto: > [email protected]>> wrote:
> Hello Dear Radiance Community,
>
> I'm curious if it is possible to identify a specific geometry primitive
identifier name in a .rad file given an .hdr image of the octree that uses
this geometry .rad file? I have a .rad geometry file that contains numerous
polygons and it would be helpful to be able to identify a specific polygon
identifier name by simply clicking on its surface within an .hdr image.
This is useful for debugging purposes, where the geometry consists of a
large number of geometry primitives.
>
> If anybody has developed a Radiance utility that performs this task, I
would greatly appreciate it you could share it or give some insight into
the procedure.
>
> Best Regards,
> Andrei Kolomenski_______________________________________________
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