I don't know authoritatively, Igor, but I would have to assume that all global operations are computed in the same order always, otherwise A. the results would be unpredictable by anyone and therefore pretty useless, and B. the product would be incredibly complex internally. Since all editing is non-destructive, there must be a processing loop that works its way through all the controls and filters working on an internal image buffer and applying each one in a pre-determined order.
The brushes and gradients deviate partially from this as they must create the equivalent of Photoshop layers. But still they must be computed at the same point in the processing chain as well. The order is most likely also selected to preserve the most dynamic range and minimize noise. On Sun, Jan 15, 2012 at 6:33 PM, Igor Roshchin <[email protected]> wrote: > > Hi All! > > Are the exposure and sharpenss operations in LR commutative? > (i.e. changing the order of them does not change the end result) > > Starting with simple: what about sharpening and noise reduction? > > In general, - which operations are and which aren't commutative? > I know that spot removal and probabl red-eye corrections are not. > What about adjustment brush and graduate filter? > > I haven't seen this described anywhere, so a pointer to the chapter in > the manual or FAQ would be appreciated. > > Igor -- -bmw -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
