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General => Terragen Discussion => Topic started by: bigben on January 23, 2009, 07:24:15 PM

Title: HDR Stitching
Post by: bigben on January 23, 2009, 07:24:15 PM
Hi all

Just passing by quickly.  Got myself PTGui Pro over the holidays and it stitches EXR files from TG2 very nicely   :)  More later.
Title: Re: HDR Stitching
Post by: Tangled-Universe on January 23, 2009, 07:31:00 PM
Damn, that looks just fine!
€ 149 is quite expensive, but probably worth it, how does it handle differences in lighting due to GI inconsistencies?

Martin
Title: Re: HDR Stitching
Post by: Seth on January 23, 2009, 07:44:26 PM
excellent ! ^^
Title: Re: HDR Stitching
Post by: matrix2003 on January 23, 2009, 08:14:16 PM
wow, great output.  Will have to look into this, as I am an .exr junkie !  ;D
Title: Re: HDR Stitching
Post by: bigben on January 24, 2009, 12:55:10 AM
Quote from: Tangled-Universe on January 23, 2009, 07:31:00 PM
Damn, that looks just fine!
€ 149 is quite expensive, but probably worth it, how does it handle differences in lighting due to GI inconsistencies?

Martin

This image was without GI (single fill light at zenith, soft shadows, 45°).  Increasing the blur radius helps, although when I increased the quality for the final render there was more variation again.  More testing to do there. 

For doing just this, it is perhaps on the expensive side, but then I also use it a lot for what it's designed for... stitching photos... and for that it is well worth it.  ... but then again I also bought GlobalMapper just for making TER files, and haven't regretted getting the more expensive newer versions.

I'll post  the HDR file in a HDR panoramic viewer later.
Title: Re: HDR Stitching
Post by: domdib on January 24, 2009, 02:04:25 PM
I haven't stress tested it, but Photosphere is a free HDR viewer for OS X that can also stitch OpenEXR.
Title: Re: HDR Stitching
Post by: rcallicotte on January 24, 2009, 04:40:04 PM
Hope to see the final.
Title: Re: HDR Stitching
Post by: bigben on January 25, 2009, 02:26:56 AM
Here's a link to a version with a floating point JPEG.

http://bigben.id.au/demo/ptv_hdr/gc_001f.html (http://bigben.id.au/demo/ptv_hdr/gc_001f.html)

The sun's surrounded by a black square which unfortunately appears after the conversion from HDR to fjpeg. The viewer also supports HDR, but the full image is a bit big for this applet.

Usual panoramic controls to view.  Press "b" to manually brighten (while cursr is over the applet), "d" to darken.
Title: Re: HDR Stitching
Post by: dandelO on January 25, 2009, 03:01:24 PM
Pretty cool, man. Shame about the sun but the rest is very nice. I can make the river appear to flow with a combination of move+zoom. :)
Title: Re: HDR Stitching
Post by: Seth on January 25, 2009, 03:08:37 PM
yeah, that's too bad for the sun bug :(