Re: Dazed and Confused with Deep Data

Brendan Bolles <[email protected]>
Newsgroups gmane.comp.video.openexr.devel
Message-ID <[email protected]>
On Apr 17, 2014, at 9:41 AM, Gonzalo Garramuno wrote:

> I played with the farPlane but nothing changed.  I uploaded the deep exr image to:
> 
> http://www.datafilehost.com/d/c18914c3
> 
> Let me know if you can see the deep data with a tree shape or if the file is broken.


Looks like this file does indeed have a solid cube of samples.  Each pixel is sampled the same 20 steps with evenly spaced 5 unit increments.

Seems like this renderer is behaving like it might for a volumetric fluid render.  When rendering regular geometry, you expect a renderer to only create a sample when a ray actually hits something, so you will only have samples where there's geometry and they will not all be at the same Z depth.

I notice the file also has ZBack values, so there's another volumetric clue.  Geometry samples should just have a Z position and no thickness.


Brendan
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