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ive never really used the "use camera path" options very much, and the details on how it works are a little vague.
my question is: i have a flythrough with lots of drastic changes in camera speed. this makes using "multiframe incremental" a bit of a pain, as every 20 frames wont cut it, maybe even every 10 is too few, but the more frames i add, the more huge the imap gets due to the grass and trees (theres not much sample overlap even on consecutive frames at the micro detail level, meaning i also get very little speedup from previously calculated samples.... if that makes sense)
so in this case using something like "use camera path" would seem like a sensible choice as i would not need to test to find the optimum "nth frame" setting, or manually choose frames to do the imap calc on.
HOWEVER, its not at all clear how one would use the "use camera path" setting to effectively replace "multiframe incremental" ?
i note in the past vlado has said its fine to use on "short camera moves" but what constitutes a short camera move? this is a 1000 frame sequence passing through a lot of scenery.
if i simply use it, i understand i need to increase the hsph subdivs? is this correct? how to judge how far to increase this setting? seems a bit counter intuitive to me, as the hsph subdiv controls the sample quality, not density....?
*basically* can i use "use cam path" on the imap for a long flythrough, if so how, and if not, why not and what are the limitations / reasons..
as a side note there are many similar newish features in vray that have never been documented in much detail.. might be worth spending some time doing a proper update of spot3d....?
my question is: i have a flythrough with lots of drastic changes in camera speed. this makes using "multiframe incremental" a bit of a pain, as every 20 frames wont cut it, maybe even every 10 is too few, but the more frames i add, the more huge the imap gets due to the grass and trees (theres not much sample overlap even on consecutive frames at the micro detail level, meaning i also get very little speedup from previously calculated samples.... if that makes sense)
so in this case using something like "use camera path" would seem like a sensible choice as i would not need to test to find the optimum "nth frame" setting, or manually choose frames to do the imap calc on.
HOWEVER, its not at all clear how one would use the "use camera path" setting to effectively replace "multiframe incremental" ?
i note in the past vlado has said its fine to use on "short camera moves" but what constitutes a short camera move? this is a 1000 frame sequence passing through a lot of scenery.
if i simply use it, i understand i need to increase the hsph subdivs? is this correct? how to judge how far to increase this setting? seems a bit counter intuitive to me, as the hsph subdiv controls the sample quality, not density....?
*basically* can i use "use cam path" on the imap for a long flythrough, if so how, and if not, why not and what are the limitations / reasons..
as a side note there are many similar newish features in vray that have never been documented in much detail.. might be worth spending some time doing a proper update of spot3d....?
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