obj2mesh -> oconv question

radiance-general
1

Hi,

I'm trying to learn Radiance and got stuck with the following error
using oconv on a mesh which I created using obj2mesh.

oconv: fatal - (test.rtm): undefined modifier "obj2mesh"

Any ideas as to what I'm doing wrong (below)?

Thanks,
Bob

···

------------------------------------------------------------------------------------

I'm running the 3.5 Linux binaries distribution.

Here's what I typed in:

$ obj2mesh test.obj > test.rtm
Mesh statistics:
    0 materials
    1 patches (0.00 MBytes)
    8 vertices (0.0% w/ normals, 0.0% w/ uv)
    12 triangles (100.0% local, 0.0% joiner)
    1 leaves in octree (0.0% empty, 12.00 avg. set size)

$ oconv test.rtm > test.oct
oconv: fatal - (test.rtm): undefined modifier "obj2mesh"

$ cat test.rtm
#?RADIANCE
obj2mesh test.obj
FORMAT=Radiance_tmesh
[.....]

2

bob coyne wrote:

Hi,

I'm trying to learn Radiance and got stuck with the following error
using oconv on a mesh which I created using obj2mesh.

oconv: fatal - (test.rtm): undefined modifier "obj2mesh"

[...]

$ oconv test.rtm > test.oct
oconv: fatal - (test.rtm): undefined modifier "obj2mesh"

You did study the obj2mesh man page, right?

   Obj2mesh reads a Wavefront .OBJ file from input.obj (or the
   standard input) and compiles it into a RADIANCE triangle mesh,
   which is sent to output.rtm (or standard output). [...] This
   mesh may be included in a RADIANCE scene description via the
   mesh primitive, thus:

         mod mesh id
         1+ output.rtm [xform args]
         0
         0

A compiled mesh file is not a normal Radiance scene file,
so you can't feed it directly into oconv. Use a mesh
primitive as explained in the man page and make sure
that it points to the right file. Then let oconv process
the file containing the mesh primitive.

-schorsch

···

--
Georg Mischler -- simulations developer -- schorsch at schorsch com
+schorsch.com+ -- lighting design tools -- http://www.schorsch.com/

3

Georg Mischler wrote:

bob coyne wrote:

> Hi,
>
> I'm trying to learn Radiance and got stuck with the following error
> using oconv on a mesh which I created using obj2mesh.
>
> oconv: fatal - (test.rtm): undefined modifier "obj2mesh"
>
> [...]
>
> $ oconv test.rtm > test.oct
> oconv: fatal - (test.rtm): undefined modifier "obj2mesh"

You did study the obj2mesh man page, right?

Not carefully enough apparently. It said the mesh "*may*
be included in a Radiance scene description...", so I
assumed that was just an optional way to reference it.
I didn't realize it was required. I should have tried it though.

Thanks for the help.

- Bob