Can you turn off tone mapping?

[Grimm]

I was wondering if you could turn off the tone mapping or choose a type that would keep the image towards the middle or neutral ranges of the histogram. I looked through the Indigo manual and it said that tone mapping is a required field so is this not possible? The reason I want this is so that I can color grade both my video imagery and the CGI elements in post production so they will match better. When you shoot video (or film for that matter) you want to keep the exposure down so you do not have any blowouts, etc. This way you have much more color control in post production. Is there any way to do this in Indigo?

[SimonLarsen]

I think linear tonemapping is what you need.

[psor]

@Grimm

Save an untonemapped EXR file and your are set mate!



take care
psor

[Grimm]

Thanks SimonLarsen, that is the tone mapping I used for my posted version. It's ok but I would like less exposure and contrast.

@psor, Excellent, that would be perfect. Unfortunately I had to move my distro back to Fedora 9 and I ran across the EXR error:

Code: Select all

saving un-tonemapped image to './renders/im1215504274_untonemapped.exr'
./indigo_console: symbol lookup error: ./indigo_console: undefined symbol: _ZN3Imf14RgbaOutputFileC1EPKciiNS_12RgbaChannelsEfN5Imath4Vec2IfEEfNS_9LineOrderENS_11CompressionE

This is on openexr version 1.6.1 and others have had the same error (jur?). I installed version 1.2.2 but it just seg faulted on me.

Code: Select all

saving un-tonemapped image to './renders/im1215504497_untonemapped.exr'
Segmentation fault

I'm just going to have to wait and see if the new linux version of Indigo works better.

[SimonLarsen]

Are you using a Linux or Windows build?

[psor]

@Grimm

Are you still running the Indigo 1.09 linux binary? In the Announcement for 1.09
"vmuriel" said that it is running on Ubuntu 7.10 with exr 1.2.2.

Thanks for linux 64 bits release.

indigo and indigo_console works excellent for early tests.

If you get gtk error, install libwxgtk2.8-0 (Ubuntu 7.10 - the Gutsy Gibbon).

exr work fine with standard Ubuntu 7.10 version,
libopenexr2c2a
1.2.2.4.3ubuntu2

So I'm wondering what is causing your seg fault.



take care
psor

[Grimm]

@SimonLarsen - The linux version 1.0.9

@psor - I was running Hardy and it was working pretty good, but I had to move back to Fedora because the only piece of software I purchased (Pfhoe Pro) will not run on a Debian system. The software company only supplies a RPM for the software. I tried to convert it with Alien but it didn't work. I sent the company an email but got no response back from them yet. So I'm stuck either way. It appears that many commercial packages only support RedHat systems and for good or bad this means I will most likely not be able to move over to Ubuntu.

[psor]

@Grimm

Just out of curiosity. Could you use this method to unpack the RPM,
to use the software on a non RH distro?

edit: Forgot to ask, if you are using the Indigo 1.09_2 version,
with statically linked OpenEXR?

And if not, ... get it, try and report back please!



take care
psor

[Grimm]

Thanks psor,

I will give those a try when I get home from work. At this point I'm willing to try anything, well almost anything.

[psor]

Anytime mate!

I guess that Indigo 1.09_2 will solve your problems, since OpenEXR is
statically linked. But lets see ... hehe. ;o))



take care
psor

[Grimm]

YES!!! Thank you psor!! It's working, I thought I was running the latest. I must have deleted it on one of my clean up purges. That will teach me to clean up my hard drive.

[psor]

I'm glad I could help mate! The version is not so easy to find, because there
is no announcement thread for it. I just found out about it again when I was
reading through the 1.09 announcement. Anyway, finally you can render
some stuff.

Cya around ... ;o))



take care
psor