Re: [Openexr-user] New Photoshop EXR plug-in

[Brendan Bolles]

On Jun 28, 2007, at 5:38 PM, address@hidden wrote:

> However, this brings up a question I've had for a while: What  
> compression method does the default Photoshop OpenEXR plugin use?  
> Is there a quick way to find this out?


It does Piz, which is the right choice for a default, particularly in  
Photoshop where photographic images are the norm.  But I find that  
Zip16 is competitive in most cases and the clear winner for CG  
renders and things with areas of flat color.  BTW, I verified Piz by  
opening a file in After Effects where my free AE plug-in has a little  
compression readout.


These days I'm also really loving the B44 + Luminance/Chroma  
combination.  You can really crush the size of the file, usually  
without any noticeable artifacts.  They also play back in real time  
using playexr.

It's lossy, so I probably wouldn't want to use it for archiving, but  
definitely for when I want to send an EXR through email.



Brendan