sIBL HDRI EXR free image and free soft...

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sIBL HDRI EXR free image and free soft...

Postby patro » Mon Feb 22, 2010 9:18 am

hi all,
probably that's not new ....but any way.
I make fast biased render with 3ds max&vray and sometimes I use IBL environment illumination and the effect is pretty cool.
just go to:
http://www.hdrlabs.com/sibl/index.html
on
http://www.hdrlabs.com/sibl/archive.html
can be find some IBL sets used for lighting
the IBL sets are made normally by HDR image for environment and reflection a jpg background and an IBL txt file.

but luxrender use EXR.... and it's conversion is pretty fast trough picturenaut.exe to find on:

http://www.hdrlabs.com/picturenaut/index.html

If any one want to create it's own IBL set... no problem there is a small full automated tool called sIBL-Edit.exe and a video tutorial to find on:

http://www.hdrlabs.com/sibl/sibl-edit.html

know you must import the sets in your 3d application... there are two ways to that.... the first one are a scripts that bridge all... to find on:

http://www.hdrlabs.com/sibl/loader.html

but i prefer to use an small application called sIBL_GUI.exe to find on:

http://www.hdrlabs.com/sibl/framework.html
about:
"sIBL_Framework is the main commandline application. It's responsible for using the setup information from .ibl files, and creating a custom setup script that builds the lighting solution in your 3d application. sIBL_Framework uses script templates, which are specifically crafted for each application, renderer, sometimes even versions thereof. Currently, templates for Maya, 3dsMAX and XSI are available. These script templates are easy to make, because all the haevy lifting is done by this framework."

"sIBL_GUI is the graphical front end to sIBL_Framework. It contains a convenient sIBL-browser, template chooser, setup options, so you can bake the fire-and-forget setup script easily. If your 3d application supports TCP/IP connection, sIBL_GUI will even fire the resulting script for you. It also automatically checks this online repository, to ensure you have the latest templates installed."

at time there are templates only for vray, mentalRay and scanline renders. it would be nice if any one want to contribute with helping to develop the existing templates or to write other for other 3d applications or renders like maxwell, fryrender and other.

also it would be nice if any one want to write one template for the future definitive luxmax version.

thanks to all to take the time to read this post.
Last edited by patro on Thu Apr 29, 2010 7:21 am, edited 2 times in total.
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Re: sIBL

Postby patro » Wed Apr 28, 2010 1:05 pm

also visit this site for free download!!

http://crazy8studio.com/hdr.php
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Re: sIBL

Postby hedphelym » Thu Apr 29, 2010 12:48 am

This site has free HDRI too, very high resolution.
http://www.openfootage.net/?cat=15
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Re: sIBL

Postby patro » Thu Apr 29, 2010 2:39 am

hedphelym wrote:This site has free HDRI too, very high resolution.
http://www.openfootage.net/?cat=15

;)
the interesting things of this site is that also can be find high resolution animated sky!!!!
for full day animation or for single shoot!!
Last edited by patro on Wed Jul 21, 2010 5:38 am, edited 1 time in total.
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Re: sIBL HDRI EXR free image and free soft...

Postby losbellos » Sat Jun 26, 2010 3:26 am

I use picturenaut for opening and editing hdr/exr files.
It is very well utilizes multicore processors, and have 4-5 method for tonemapping.
And it is free!

http://www.hdrlabs.com/picturenaut/
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Re: sIBL HDRI EXR free image and free soft...

Postby patro » Fri Sep 24, 2010 7:50 am

losbellos wrote:I use picturenaut for opening and editing hdr/exr files.
It is very well utilizes multicore processors, and have 4-5 method for tonemapping.
And it is free!

http://www.hdrlabs.com/picturenaut/

pcturenaut is packed with the hdrshop plugins ;)
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Re: sIBL HDRI EXR free image and free soft...

Postby giuliojiang » Mon Aug 29, 2011 9:53 am

patro wrote:the IBL sets are made normally by HDR image for environment and reflection a jpg background and an IBL txt file.

but luxrender use EXR.... and it's conversion is pretty fast trough picturenaut.exe to find on:

http://www.hdrlabs.com/picturenaut/index.html


How do you create an EXR from an IBL set?
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Re: sIBL HDRI EXR free image and free soft...

Postby patro » Mon Aug 29, 2011 10:04 am

use picturenaut.exe to convert between hdr and exr.
but you don't need to convert them to exr since luxrender uses hdr too.
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Re: sIBL HDRI EXR free image and free soft...

Postby giuliojiang » Mon Aug 29, 2011 11:54 am

patro wrote:use picturenaut.exe to convert between hdr and exr.
but you don't need to convert them to exr since luxrender uses hdr too.

I see, but I downloaded an hdr from hdrlabs and got this into the archive
Image
as you can see there are 2 hdr files: an env map and a reflection map. The high-resolution background is a simple very big jpg (8000*4000).
Is there a way to create a high-resolution exr or hdr from the HiRes jpg and the HDRs?
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Re: sIBL HDRI EXR free image and free soft...

Postby Abel » Mon Aug 29, 2011 12:06 pm

giuliojiang wrote:Is there a way to create a high-resolution exr or hdr from the HiRes jpg and the HDRs?

From .hdr you can easily resave as .exr in for example Blender. From .jpg you will be missing dynamic range information so I wouldn't recommend that. I have never heard of any method that combines a high resolution low dynamic range image with a low resolution high dynamic range image to create a high resolution high dynamic range image. That would be cool though. :)

However as patro mentioned there should be no need to convert; just get that Mono_Lake_C_Ref.hdr file and off you go. :)
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