Blender Exporter for Indigo06 v. 63beta4

Jananton · Post by **Jananton** » Wed Jan 17, 2007 12:13 pm

afecelis wrote:You're right! I'm using Reinhard all the time My triple bad!
Could you tell me which values you're using with linear so that I can reproduce them as well?

Well, the values where already mentioned, but maybe I should have added the word gain

, and after 2 and three quarter hours it now looks like this:

Gain was set to 310 in the texture map, amb to 0.32 in blender for the lamp (meshlight), linear tonemapping selected as you expected, and for the rest all default in 63beta3...

What impesses me most, is the fact that, because the Kelvin value of this early_morning.exr (hdr file from a link you provided) is obviously much lower than a Sunsky environment the colour temperature of the lamp seems more blue than that 3200K, just as it would be in real life. (this effect goes a little away because of all the white from the surrounding background in this forum, but save the pic and look at it on a black surrounding screen and you immediately see what I mean)

This textures are great for exterior renderings since everything gets tinted by the color of it, resulting in a more realistic image; hence, it's ideal for composite work and that's why it's a technique widely used in the film industry.

Now It's my turn to be emberassed

, I do a lot of different things in my life, but in the end I am a moviemaker by profession, and I hadn't heard of this, I must be getting old...

Last but not least, thanks for the updates on the links...

Greetings from humble Amsterdam,

Jan

afecelis · Post by **afecelis** » Wed Jan 17, 2007 12:28 pm

Now It's my turn to be emberassed , I do a lot of different things in my life, but in the end I am a moviemaker by profession, and I hadn't heard of this, I must be getting old...

hehehe, not at all! It happened to me too.

The other day I rented Narnia and after watching it I decided to watch the bonus stuff. If you check it, in several scenes you'll see they have this guy carrying a perfect chromed sphere on a stick and that every now and then he raises it in the different scenarios and leaves it still for some seconds. I asked myself; "what the hell is that jerk doing playing around with a chromed ball?". Then,after a couple of days I told what I saw to a friend of mine who's also a blender buff and he slapped me on my bald head and said to me: "you jerk! they were taking hdri images of each environment to then mix with the CG stuff!"

Then I realized, I was getting old... and that the movie industry would never be the same....

Heheh, the I ran into some hdri "do it yourself" tuts where I saw how it's done. I'll try to find the tuts to link you to them. I also fool around with my Sony VX2000 and our goal is to learn as much as we can about video-film and try to put up a short. Meanwhile, we do video clips for bands, and institutional video,and other etc etc etc boring stuff.

Greetings from ignorance is bliss Bucaramanga, hehehehe

ps.Just run into this:
http://www.sonypictures.com/imageworks/ ... HDRI3D.pdf

afecelis · Post by **afecelis** » Wed Jan 17, 2007 1:02 pm

Hi Jan, sorry for hijacking your thread even more but I found one of the hdri creation tuts:
http://www.cliffhanger.nl/specials/hdri.pdf

Jananton · Post by **Jananton** » Wed Jan 17, 2007 1:27 pm

afecelis wrote:Hi Jan, sorry for hijacking your thread even more but I found one of the hdri creation tuts:
http://www.cliffhanger.nl/specials/hdri.pdf

No problem, I've downloaded the pdf's from this and your previous message to read them tomorrow, today, oh wel, time flies when you're having fun..

Greetings from time for a beauty sleep Amsterdam,

Jan

Jananton · Post by **Jananton** » Fri Jan 19, 2007 11:22 pm

Hello All,

This is just a little message that the Blender to Indigo v. 0.6 exporter has been updated to version 63beta4 and can be downloaded from the first message in this thread.

Incorporated now is a button 'Kelvin compensation' in the environment section, that implements the idea of zuegs to compensate the real world behaviour of changing <gain> values when colour temperatures in meshlights are changed as described in the Stephan Boltzmann Law. See readme.txt for details.

The LFactor value added to the previous version when Linear tonemapping was selected for mixing meshlights with other lightsource(s) has been proven to work in Reinhard mapping too, so it's now available in both tonemapping settings.

Well, that's it for now. There still is an issue that the exporter arbitrairely uses a HDR subfolder for texturemaps as brought to my attention by afecelis. A solution for this is under investigation...

Greetings from sunny Amsterdam, and enjoy,

Jan

afecelis · Post by **afecelis** » Sat Jan 20, 2007 12:06 am

yaaaaaaaaaaay! great! Downloading. Thnks Jan!

Jananton · Post by **Jananton** » Sat Jan 20, 2007 11:51 am

afecelis wrote:yaaaaaaaaaaay! great! Downloading. Thnks Jan!

I knew you would like this.

Allthough not mentioned, I also cleaned up some of the interface layout itself. When you mentioned the 'Loa' button for texture mapping HDR, or better EXR, images for instance...

On another note, I noticed our, or perhaps my, posting of pictures maybe brought on data flow excess for this forum. Lets agree to only drop thumbnails with according links to pictures on our own sites, to circumvent these problems. I just drop this here, since a moderator can pick this up. I personally have no idea to get this to the masses so to say...

Greetings from investigating Amsterdam,

Jan

YaroslavL · Post by **YaroslavL** » Thu Jan 25, 2007 9:24 pm

I have problems with new exporter!
I'm using open SuSE 10.2 linux.
I do ewerything from readme.txt, but in console I have:

Traceback (most recent call last):
File "<string>", line 1125, in drawGUI
File "<string>", line 972, in drawCamera
File "<string>", line 1143, in drawButtons
File "<string>", line 679, in save_still
File "<string>", line 637, in launchLinIndigo
IOError: [Errno 13] Permission denied: '/IndigoWrapper.sh'

but I really share IndigoWrapper.sh

Sad, but Linux users still forgotten...
P.S. Sorry for EN.

YaroslavL · Post by **YaroslavL** » Thu Jan 25, 2007 9:32 pm

But with
Dev-Indigo_export_0.6test6_beta1.py
I haven't any problems...
How can I attach img but from HDD (not from http)

afecelis · Post by **afecelis** » Fri Jan 26, 2007 1:06 am

@YaroslavL: I think Jananton's scripts are not cross-platform. They're bound to Windows' system

I had similar problems in Suse 10.1.

YaroslavL · Post by **YaroslavL** » Fri Jan 26, 2007 3:18 am

Sad...
Can anybody compile that script for Linux?
PLEEEEEEEASE!!!

Jananton · Post by **Jananton** » Fri Jan 26, 2007 3:30 am

YaroslavL wrote:Traceback (most recent call last):
File "<string>", line 1125, in drawGUI
File "<string>", line 972, in drawCamera
File "<string>", line 1143, in drawButtons
File "<string>", line 679, in save_still
File "<string>", line 637, in launchLinIndigo
IOError: [Errno 13] Permission denied: '/IndigoWrapper.sh'

but I really share IndigoWrapper.sh

Sad, but Linux users still forgotten...

Well, not forgotten, but I have only very limited experience with Linux. I've toyed a little bit with Mandrake 9.2, but that's it. Maybe someone who has some bash scripting knowledge in Linux can jump in, because this must be something simple. Afaik the error occurs when opening c.q. creating the file '/IndigoWrapper.sh', so is this file created or not on your system

, and if it is, is it in your home directory of the user that's active...

Btw, if you say you really share this IndigoWrapper.sh file does this mean you gave it a chmod command to do this. If so, find the LaunchLinIndigo function in the python script and change the chmod instruction there accordingly, since the file gets rebuild every time you run the exporter...

Look for the line: os.system("chmod +x /IndigoWrapper.sh") , and change the chmod instruction as desired.

Hope this gets you somewhere....

Greetings from puzzled Amsterdam,

Jan

u3dreal · Post by **u3dreal** » Fri Jan 26, 2007 3:35 am

YaroslavL wrote:I have problems with new exporter!
I'm using open SuSE 10.2 linux.
I do ewerything from readme.txt, but in console I have:

Traceback (most recent call last):
File "<string>", line 1125, in drawGUI
File "<string>", line 972, in drawCamera
File "<string>", line 1143, in drawButtons
File "<string>", line 679, in save_still
File "<string>", line 637, in launchLinIndigo
IOError: [Errno 13] Permission denied: '/IndigoWrapper.sh'

but I really share IndigoWrapper.sh

Sad, but Linux users still forgotten...
P.S. Sorry for EN.

Hi well i think you don't have permission to write to root..!!

I have the two OS ( linux and windows ) code already done so
i will add that next week when i find time to the currect 0.6 version
so it should then work with both win and kinux...
which will make development much easier..

cheers

u3dreal

afecelis · Post by **afecelis** » Fri Jan 26, 2007 3:46 am

guess who loves ya? looooooooool

Jananton · Post by **Jananton** » Fri Jan 26, 2007 4:03 am

YaroslavL wrote:Sad...
Can anybody compile that script for Linux?
PLEEEEEEEASE!!!

Note, no compiling is involved. Changing some lines in the python script should be sufficient. Someone with knowledge of commandline instructions in Linux and bash Linux scripting, if Suse uses bash, should get it running with some small corrections in the def LaunchLinIndigo(filename): function.

I'm guessing here, but you could try to write the following line directly after
f = open('/IndigoWrapper.sh", 'w')
f.write("#!/bin/sh\n")

in the above mentioned function in the exporter python script.

This line tells bash that this can be an executable script...

Just something to try....

Jan

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