(2017-06-22, 7:33)Philippe Hurbain Wrote:(2017-06-21, 21:38)Magnus Forsberg Wrote: It has lately become more common with stickers printed on transparent plastic, to be placed on opaque bricks.I wouldn't use noclip if these stickers are to be applied on opaque bricks.
Is it correct, and even necessary, to always add a BFC NOCLIP in a transparent sticker, or is it incorrect to have a NOCLIP in a transparent sticker intended for a opaque brick?
We have a recent set of stickers containing a NOCLIP on the PartTracker and I don't know how to review them.
I think there are two ways to think about this. The first way is to make it look like the real thing. To do that, peel the sticker off the sheet and look at the back. Whatever you see there (Pure white over the printed section? The printed pattern in mirror image? Something else?) is what the part should model to match reality. If it's the printed pattern in mirror image, then noclip for the pattern geometry is the way to achieve this. If it's pure white over the printed section, then backwards-facing BFC'd white geometry would be how to achieve this (with frontwards-facing BFC'd pattern geometry). If it's something else, then that would have to be thought about too.
The other way to look at things is to consider how the sticker is going to be used. If you assume the sticker will always be applied to opaque bricks, then frontwards-facing BFC'd pattern geometry is fine, because the user will never see the back of the sticker. The problem here, is, with stickers being present in LDraw, is it right have them only look right if they're applied to opaque bricks? Are the stickers then only considered valid if used in the same way they are used in the official model?