HDRI render tests

Get feedback from others on your works in progress
User avatar
Originalplan®
Posts: 755
Joined: Sat Sep 26, 2015 8:58 pm
3D Software: Cinema 4D
Contact:

HDRI render tests

Post by Originalplan® » Tue Apr 05, 2016 10:14 pm

I started to experiment with HDRI type of renderings.
Should produce some interesting renders i hope.
Not sure if its worth while or interesting enough to be a feature request.
Technical stuff below & some test renders.

High-dynamic-range imaging basics
https://en.wikipedia.org/wiki/High-dyna ... ge_imaging

Oversampled binary image sensor
https://en.wikipedia.org/wiki/Oversampl ... age_sensor

®
Attachments
32-bit_EV_ResultD65.jpg
EV Test No. 2 | 32-Bit Multi EV Result - D65 simple white cube + 1 portal.
EV_TESZT2.png
EV Test No. 2 SOURCE | - D65 simple white cube setup + 1 portal.
EV_HDRI_RESULT.jpg
EV test No.1 D55 Result
EV_TEST.png
EV test No.1 D55
HDRI_1600+400ISO.jpg
1600ISO.jpg
400ISO.jpg
Last edited by Originalplan® on Tue Apr 05, 2016 11:32 pm, edited 2 times in total.

User avatar
Oscar J
1st Place Winner
Posts: 2197
Joined: Sat Mar 31, 2012 3:47 am
Location: Gothenburg, Sweden
3D Software: Blender

Re: HDRI render tests

Post by Oscar J » Tue Apr 05, 2016 10:17 pm

Nice! What would be the feature requests exactly?

User avatar
Originalplan®
Posts: 755
Joined: Sat Sep 26, 2015 8:58 pm
3D Software: Cinema 4D
Contact:

Re: HDRI render tests

Post by Originalplan® » Tue Apr 05, 2016 10:23 pm

Oscar J wrote:Nice! What would be the feature requests exactly?
8) Still thinking on a cool name for it.
Some automated setting for EV and ISO channels for saving out multiple images with multiple settings at once?
Or save out the HDRI type merged images? NOT Sure how or if it worth it.
But it can be useful to get a more wider spectrum in rendering...in therms of shadows & light.
These are just tests....you guys decide if its useful or not.

User avatar
Oscar J
1st Place Winner
Posts: 2197
Joined: Sat Mar 31, 2012 3:47 am
Location: Gothenburg, Sweden
3D Software: Blender

Re: HDRI render tests

Post by Oscar J » Tue Apr 05, 2016 10:35 pm

Indigo already has HDRI output in .exr format (a more modern format than .hdr). :)

User avatar
Originalplan®
Posts: 755
Joined: Sat Sep 26, 2015 8:58 pm
3D Software: Cinema 4D
Contact:

Re: HDRI render tests

Post by Originalplan® » Tue Apr 05, 2016 10:36 pm

Oscar J wrote:Indigo already has HDRI output in .exr format (a more modern format than .hdr). :)
i know. But that will merge multiple expos in one?
Its not the format its the result.
Preserve super darks and super whites whit no overflowing & more detail.

User avatar
Originalplan®
Posts: 755
Joined: Sat Sep 26, 2015 8:58 pm
3D Software: Cinema 4D
Contact:

Re: HDRI render tests

Post by Originalplan® » Tue Apr 05, 2016 10:44 pm

Think of it like.... the data difference between a 8-bit|16-bit|32-bit TIFF format.

User avatar
pixie
Indigo 100
Posts: 2259
Joined: Sat Dec 29, 2007 4:54 am
Location: Away from paradise
3D Software: Cinema 4D
Contact:

Re: HDRI render tests

Post by pixie » Tue Apr 05, 2016 11:43 pm

Originalplan® wrote:
Oscar J wrote:Indigo already has HDRI output in .exr format (a more modern format than .hdr). :)
i know. But that will merge multiple expos in one?
Its not the format its the result.
Preserve super darks and super whites whit no overflowing & more detail.
Well, this is only a gimmick that allows a LDR machine such as a camera to portray an hdr one. Indigo doesn't need such gimmick as it already gives the full exposition gammut.

User avatar
Originalplan®
Posts: 755
Joined: Sat Sep 26, 2015 8:58 pm
3D Software: Cinema 4D
Contact:

Re: HDRI render tests

Post by Originalplan® » Wed Apr 06, 2016 12:43 am

pixie wrote:
Originalplan® wrote:
Oscar J wrote:Indigo already has HDRI output in .exr format (a more modern format than .hdr). :)
i know. But that will merge multiple expos in one?
Its not the format its the result.
Preserve super darks and super whites whit no overflowing & more detail.
Well, this is only a gimmick that allows a LDR machine such as a camera to portray an hdr one. Indigo doesn't need such gimmick as it already gives the full exposition gammut.
I don't think its a gimmick. But i don't know either if its needed...full exposition gammut or not.
High end RED cams have this option and high end HDRI lcd panels. Its a techological advencement...but if its needed...i dunno.

User avatar
Originalplan®
Posts: 755
Joined: Sat Sep 26, 2015 8:58 pm
3D Software: Cinema 4D
Contact:

Re: HDRI render tests

Post by Originalplan® » Wed Apr 06, 2016 12:44 am

1 thing is certain you can eliminate the shadows in corners with this approach. :D

User avatar
pixie
Indigo 100
Posts: 2259
Joined: Sat Dec 29, 2007 4:54 am
Location: Away from paradise
3D Software: Cinema 4D
Contact:

Re: HDRI render tests

Post by pixie » Wed Apr 06, 2016 2:36 am

Originalplan® wrote:I don't think its a gimmick. But i don't know either if its needed...full exposition gammut or not.
High end RED cams have this option and high end HDRI lcd panels. Its a techological advencement...but if its needed...i dunno.
Camera has a low gammut, so you take multiple shots so that you can interpolate the full gammut. Indigo make this calculation already, as these cameras you're talking about, it seems... there's not much to it. You might as well save the file in EXR and it will present you with all the available gammut this high cameras present you or you can select camera/reinhard mode and tweak it yourself. You can convert to HDR and import it on Picturenaut which is free or photoshop, heck! You can even take three different exposures, save them and create your own HDR! :D
Last edited by pixie on Wed Apr 06, 2016 5:44 am, edited 1 time in total.

User avatar
pixie
Indigo 100
Posts: 2259
Joined: Sat Dec 29, 2007 4:54 am
Location: Away from paradise
3D Software: Cinema 4D
Contact:

Re: HDRI render tests

Post by pixie » Wed Apr 06, 2016 2:37 am

Originalplan® wrote:1 thing is certain you can eliminate the shadows in corners with this approach. :D
The vignette has nothing to do with it and you can turn it off when exporting! :)

User avatar
Originalplan®
Posts: 755
Joined: Sat Sep 26, 2015 8:58 pm
3D Software: Cinema 4D
Contact:

Re: HDRI render tests

Post by Originalplan® » Wed Apr 06, 2016 3:03 am

pixie wrote:You can even take three different exposures, save them and create your own HDR! :D
Well how else would you do that? :D
BTW PS has a great merge HDR feature inside so no need for plugins at all.
Last edited by Originalplan® on Wed Apr 06, 2016 3:10 am, edited 1 time in total.

User avatar
Originalplan®
Posts: 755
Joined: Sat Sep 26, 2015 8:58 pm
3D Software: Cinema 4D
Contact:

Re: HDRI render tests

Post by Originalplan® » Wed Apr 06, 2016 3:05 am

pixie wrote:
Originalplan® wrote:1 thing is certain you can eliminate the shadows in corners with this approach. :D
The vignette has nothing to do with it and you can turn it off when exporting! :)
Im not talking about the vignette. Im talking about the corners in a white room. :D
Not the vignette effect.

User avatar
Originalplan®
Posts: 755
Joined: Sat Sep 26, 2015 8:58 pm
3D Software: Cinema 4D
Contact:

Re: HDRI render tests

Post by Originalplan® » Wed Apr 06, 2016 3:08 am

But if its pointless then it is.. :P
I didn't said it will save the world. :)

User avatar
Oscar J
1st Place Winner
Posts: 2197
Joined: Sat Mar 31, 2012 3:47 am
Location: Gothenburg, Sweden
3D Software: Blender

Re: HDRI render tests

Post by Oscar J » Wed Apr 06, 2016 3:16 am

I think you might have had misunderstood the whole concept of HDRI's from Indigo. :) Indigo exports 32 bit HDRI images with a huge dynamic range, which allows almost endless post pro possibilities. These 32 bit images can be created with a normal camera by combining many exposures, but Indigo doesn't need that since it stores all necessary information internally to create a HDRI.

Post Reply
21 posts

Who is online

Users browsing this forum: No registered users and 3 guests