[Bf-committers] DOF Docs

Ton Roosendaal ton at blender.org
Sat Apr 23 23:04:39 CEST 2005


I've just committed it... people who like to quick play around, here's  
a test file that shows it;


I repeat the CVS log here, for those without subscription to cvs mails:

   The zblur plugin (aka as DoF) integrated in render. Compared to patch
   submitted by Alexander, changes/improvements are:

   - Moved to new Panel in Scene buttons "Post Effects". Together with  
     postprocessing options, such as Edge render. It is also not called  
     because that's a bit pretending too much. It's a zblur still!
   - Made it render Alpha as well
   - Made it use and deliver float buffers
   - Huge cleanup of zblur.c code, was very messy. It was calling things  
in render
     code without need even (win matrices, transform faces, etc)
   - Fixed errors in using Z values (zbuffer is signed int)
   - Removed very weird gamma corrections for front/back half
   - Tweaked gaussian table, allow variable 'Sigma' to be set for gauss  
   - Didn't copy 'auto focus' yet. Use of this is very limited, and gives
     false expectations, nor works for rendering anims with deamons well.

   Main issue remains: it's not a very advanced feature... I still doubt
   very much if this deserves to be released. Spent 2 days on trying to  
   the key issues solved, with not much results.

   - gauss filter code has weird side effects on large blur size
   - having unsharp (blurred) in front also blurs what's around in back.
     only blurred in back with sharp in front works a little bit
   - severe aliasing errors... also due the code splitting in 2 halves
   - doesnt work with unified yet
   - won't work for halos, spot halos or transparant faces

   Anyhoo... It was promised to be committed, so now artists can play  
with it.
   Who knows it's useful after all, or some fixes can be implemented. :)


On 18 Apr, 2005, at 16:08, Alexander Ewering wrote:

> Preliminary docs:
> http://blender.instinctive.de/downloads/release/docs/dof.txt
> Demo file:
> http://blender.instinctive.de/downloads/demo_dof/dof-bf.blend.gz
> In Frame 1, the sphere is focused, in Frame 2, the monkey is focused
> (camera just points at different angles)
> Demo AVIs:
> http://blender.instinctive.de/downloads/demo_dof/
> | alexander ewering              instinctive mediaworks
> | ae[@]instinctive[.]de   http://www[.]instinctive[.]de
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Ton Roosendaal  Blender Foundation ton at blender.org  

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