Am 30.04.2010 21:34, schrieb Edouard:

> I've got code to correct for this in my DF3 Proximity macros - the same problem
> affects voxels with interpolation. I can change my macros if you change POV, but
> is there a way to query a specific sub-version of POV? Can I query if I'm
> running beta 37 vs beta 38?

No, unfortunately there is no way to query sub-versions. You'll probably 
have to make a cut as soon as you switch to beta 38 (or whichever will 
introduce that change), and pretend that all 3.7 sub-versions have 
always behaved that way.

After all, betas are still work in progress, so the behavior of version 
3.7 is not fully defined until that version proper is released.

> Also - are you sure its a bug? I managed to convince myself that it's the
> correct behavior if the pixel's value is defined for the pixels coordinate (e.g.
> <0,0>,<1,4>  or<1023,1023>) rather than half a pixel across (e.g.<0.5,0.5>,
> <1.5,4.5>  or<1023.5,1023.5>). Does that make sense?

Well, I guess that's a matter of definition. But I'm instead going by 
visual appearance, and cannot help but notice that the image /visually/ 
shifts by half a pixel when turning on interpolation. And /that/ I do 
call a bug. If I want to smoothen an image, I typically don't want it to 
shift.

BTW, I didn't pay any thought to DF3s yet, so thanks for drawing my 
attention to those; while they use different code, I think it makes 
sense to have the same behavior for images and DF3s alike.

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