Misplaced Rendering Frame

radiance-general
1

Hello all again. I have ran into a slight problem when rendering fish eyes
with multiple processors.
If you look at the linked image you can see that some of the frames are
misplaced, incomplete and/or dropped. It is almost always along or near the
edges of the renderings. It is frustrating as non-fisheye images render fine
95% of the time.

http://i23.photobucket.com/albums/b354/mrhubof/General/caes_2010_05_10_mod3a
_c1.jpg

Thank you,
Nick

2

Hello all again. I have ran into a slight problem when rendering fish eyes
with multiple processors.
If you look at the linked image you can see that some of the frames are
misplaced, incomplete and/or dropped. It is almost always along or near the
edges of the renderings. It is frustrating as non-fisheye images render fine
95% of the time.

http://i23.photobucket.com/albums/b354/mrhubof/General/caes_2010_05_10_mod3a
_c1.jpg

Thank you,
Nick

3

Previous link was broken, here is correct link:
http://i23.photobucket.com/albums/b354/mrhubof/General/caes_2010_05_10_mod3a
_c1.jpg

···

-----Original Message-----
From: Nick Hubof [mailto:[email protected]]
Sent: Thursday, May 13, 2010 3:36 PM
To: 'Radiance general discussion'
Subject: [Radiance-general] Misplaced Rendering Frame

Hello all again. I have ran into a slight problem when rendering fish eyes
with multiple processors.
If you look at the linked image you can see that some of the frames are
misplaced, incomplete and/or dropped. It is almost always along or near the
edges of the renderings. It is frustrating as non-fisheye images render fine
95% of the time.

http://i23.photobucket.com/albums/b354/mrhubof/General/caes_2010_05_10_mod3a
_c1.jpg

Thank you,
Nick

4

Hi Nick,

I tried but was unable to reproduce this problem. Can you give some more details, such as the version of Radiance you are using, rpiece arguments, etc?

-Greg

···

From: "Nick Hubof" <[email protected]>
Date: May 13, 2010 2:33:21 PM PDT

Hello all again. I have ran into a slight problem when rendering fish eyes
with multiple processors.
If you look at the linked image you can see that some of the frames are
misplaced, incomplete and/or dropped. It is almost always along or near the
edges of the renderings. It is frustrating as non-fisheye images render fine
95% of the time.

http://i23.photobucket.com/albums/b354/mrhubof/General/caes_2010_05_10_mod3a_c1.jpg

Thank you,
Nick

5

Greg,
I have the script and associated radiance files located here:
http://docs.google.com/leaf?id=0B-0yAkZp2eitMGU2N2Q3OTgtM2Q1NS00ZWNjLWFiNmMt
NmJiNjAzYWQ1YzFi&hl=en
Radiance Version: rad3R9_macosx
Thank you for your assistance.
Nick

···

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Greg Ward
Sent: Thursday, May 13, 2010 5:55 PM
To: Radiance general discussion
Subject: Re: [Radiance-general] Misplaced Rendering Frame

Hi Nick,

I tried but was unable to reproduce this problem. Can you give some
more details, such as the version of Radiance you are using, rpiece
arguments, etc?

-Greg

From: "Nick Hubof" <[email protected]>
Date: May 13, 2010 2:33:21 PM PDT

Hello all again. I have ran into a slight problem when rendering
fish eyes
with multiple processors.
If you look at the linked image you can see that some of the frames
are
misplaced, incomplete and/or dropped. It is almost always along or
near the
edges of the renderings. It is frustrating as non-fisheye images
render fine
95% of the time.

http://i23.photobucket.com/albums/b354/mrhubof/General/caes_2010_05_10_mod3a
_c1.jpg

Thank you,
Nick

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Radiance-general mailing list
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http://www.radiance-online.org/mailman/listinfo/radiance-general

6

Greg and all,
It seems that I was running the scene with an Ambient resolution that was
too high. I ran the scene at ar=2056 and had problems with frames dropping
with the fisheye cameras and then again with section perspectives (clipping
plane). I reduced the ar=1028 and all was well. The renderings turned out
fine and no frames were dropped.
Thanks,
Nick

···

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Greg Ward
Sent: Thursday, May 13, 2010 5:55 PM
To: Radiance general discussion
Subject: Re: [Radiance-general] Misplaced Rendering Frame

Hi Nick,

I tried but was unable to reproduce this problem. Can you give some
more details, such as the version of Radiance you are using, rpiece
arguments, etc?

-Greg

From: "Nick Hubof" <[email protected]>
Date: May 13, 2010 2:33:21 PM PDT

Hello all again. I have ran into a slight problem when rendering
fish eyes
with multiple processors.
If you look at the linked image you can see that some of the frames
are
misplaced, incomplete and/or dropped. It is almost always along or
near the
edges of the renderings. It is frustrating as non-fisheye images
render fine
95% of the time.

http://i23.photobucket.com/albums/b354/mrhubof/General/caes_2010_05_10_mod3a
_c1.jpg

Thank you,
Nick

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

7

Hi Nick,

I have no idea what was causing this, but Jack de Valpine said offline he's seen similar issues with rpiece and image sections (pieces) that have very little going on, like the corners of your image. It may be a race condition that the NFS lock manager isn't handling properly, but nothing I can really do much about. I don't know how the ambient resolution would affect this, so it's a puzzle. It could just be coincidence.

In related news, I just made an enhancement to the "rad" executive program to run rpiece automatically when -N is set >1 and only a single view is being requested. It even does automatic recovery if the rendering gets interrupted.

Best,
-Greg

···

From: "Nick Hubof" <[email protected]>
Date: May 18, 2010 9:24:44 AM PDT

Greg and all,
It seems that I was running the scene with an Ambient resolution that was
too high. I ran the scene at ar=2056 and had problems with frames dropping
with the fisheye cameras and then again with section perspectives (clipping
plane). I reduced the ar=1028 and all was well. The renderings turned out
fine and no frames were dropped.
Thanks,
Nick

8

This is really cool, looking forward to checking it out (on that note, has
it been checked in?). Thanks Greg!

···

On 5/18/10 11:04 AM, "Greg Ward" <[email protected]> wrote:

In related news, I just made an enhancement to the "rad" executive
program to run rpiece automatically when -N is set >1 and only a
single view is being requested. It even does automatic recovery if
the rendering gets interrupted.

9

That is nice, I assume this also sets -PP?

-Jack

[snip]

···

In related news, I just made an enhancement to the "rad" executive program to run rpiece automatically when -N is set >1 and only a single view is being requested. It even does automatic recovery if the rendering gets interrupted.

Best,
-Greg

10

I didn't check if it made it into last night's HEAD, but it should have. It does set -PP as well.

-Greg

···

From: Jack de Valpine <[email protected]>
Date: May 18, 2010 10:18:58 AM PDT

That is nice, I assume this also sets -PP?

-Jack

[snip]

In related news, I just made an enhancement to the "rad" executive program to run rpiece automatically when -N is set >1 and only a single view is being requested. It even does automatic recovery if the rendering gets interrupted.

Best,
-Greg