<div dir="ltr"><div><div><div><div>Hi Hadrien,<br><br></div>The bottleneck for drawing onionskins for geometry has never really been *drawing* the geometry, but rather, *evaluating the rigs + geometry* for each of the frames shown. In that sense, Blender's lack of this thus far has really been more of a "technically-not-feasible" problem vs "we don't want to have this feature". <br><br></div>With the projects planned/in-development for 2.8, this should hopefully become more feasible. In particular, the changes to how data is evaluated (i.e. on copies instead of on the original datablocks) should in theory allow us to spawn extra copies of the geometry data in the background to calculate everything quicker. Or, perhaps we may finally consider just caching modifier-deformed geometry for quicker playback in the viewport (and get onion-skinning almost "for-free" that way).<br><br></div>Of course, whether all this actually works like this is still to be seen - e.g. I'd still like to check on how we can optimise motionpath calculations by using partial depsgraph updates (and on a background/internal copy of the data).<br><br></div><div>Cheers,<br></div><div>Joshua<br></div><div><div><div><br></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Jul 22, 2017 at 10:47 PM, Hadrien Brissaud <span dir="ltr"><<a href="mailto:hadriscus@gmail.com" target="_blank">hadriscus@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>Hi Clément, apologies for being vague. It's like onion skinning (grease pencil), but for 3d characters, which I imagine makes it that much more expensive to draw. Example : <a href="https://www.youtube.com/watch?v=5DVUEtLAuiU" target="_blank">https://www.youtube.com/watch?<wbr>v=5DVUEtLAuiU</a> It is probably not something I would use in a full-blown engine like Eevee, but something more simple like Clay, or an even simpler silhouette drawing. Current Blender can display ghosts of bones (in armature settings), and although it gives some indication of movement, bones rarely reflect accurately the silhouette of characters (<a href="http://pasteall.org/pic/index.php?id=117451" target="_blank">http://pasteall.org/pic/<wbr>index.php?id=117451</a>).<br></div>There is another example : <a href="https://www.youtube.com/watch?v=sG6wXX7nAvQ" target="_blank">https://www.youtube.com/watch?<wbr>v=sG6wXX7nAvQ</a> This one seems to take a snapshot of the silhouette in screen space, looks nice from camera view but I imagine you cannot tumble around the scene without breaking the effect.<br><br></div>Cheers,<br><br></div>Hadrien<br></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On 22 July 2017 at 03:15, Clément FOUCAULT <span dir="ltr"><<a href="mailto:foucault.clem@gmail.com" target="_blank">foucault.clem@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi Hadrien,</div><div><br></div>Could you be more precise? Is this a feature of 2.79? Have a screenshot for me to understand?<div><br></div><div>Thanks.</div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="m_7874669457383596878h5">2017-07-22 0:06 GMT+02:00 Hadrien Brissaud <span dir="ltr"><<a href="mailto:hadriscus@gmail.com" target="_blank">hadriscus@gmail.com</a>></span>:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="m_7874669457383596878h5"><div dir="ltr"><div><div><div>Hi all,<br><br></div>don't know if it's planned but haven't read about it : is the new viewport capable of handling geometry ghosting ? For onion skinning in animation, it's pretty useful.<br><br></div>Cheers,<br><br></div>Hadrien<br></div>
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