Filter Forge - Is there (or will be) a way to do frac() or int()?

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Zoltan Erdokovy Posts: 147 Filters: 23	Is it possible to get either the fraction of a HDR pixel or its integer part?
	Posted: November 2, 2009 11:25 am	Details E-Mail
Vladimir Golovin Administrator Filter Forge, Inc. Posts: 3106 Filters: 54	Not yet.
	Posted: November 3, 2009 6:09 am	Details E-Mail
uberzev not uberfez Posts: 1821 Filters: 36	Sorry to Hijack the thread, but I still don't quite understand the benefit of all this HDR goodness. I understand it's theoretically better but can someone demonstrate a filter that would not be possible without HDR colors?
	Posted: November 4, 2009 1:23 am	Details E-Mail
tigerAspect Posts: 221 Filters: 9	Yes, I'm really wondering about this too. The few things I've tried with HDR seem to be entirely able to be replicated with the right blend modes or maybe a Tone Curve.
	Posted: November 4, 2009 8:09 am	Details E-Mail
Zoltan Erdokovy Posts: 147 Filters: 23	There is much bigger room to work in, before we encounter data clipping. In other words whatever you do, you wont lose data. I hope the attached filter shows what I mean. LDRvsHDR.ffxml
	Posted: November 4, 2009 12:57 pm	Details E-Mail
Zoltan Erdokovy Posts: 147 Filters: 23	There are a few less artistic tricks as well, using HDR capability. Like the reason why I asked about the frac() function: with that, you could "encode" several LDR images in one HDR image, do operations on it, then recover the processed LDR data. It can save you a lot of trouble when otherwise you'd have the same node chain 2-3-4 times just because the data sets driving them are different.
	Posted: November 4, 2009 1:29 pm	Details E-Mail