<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Hi Andre,<div class="">Sometimes you can approximately "fake" this effect by using the selection outline. It is not the same, however, as silhouettes; it will only go around the outside perimeter of the selected item(s). For example, if I have a molecule inside a map surface, I can make the surface transparent, select the atomic structure, and make the selection outline color black etc. as in these commands, resulting in the appearance in the attached image.<div class=""><br class=""></div><div class="">open 2gbp<br class="">molmap protein 8<br class="">trans 70<br class="">view<br class="">set bgColor white<br class="">select @*<br class="">graphics selection color black<br class=""><div class=""><br class=""></div><div class="">I hope this helps,</div><div class="">Elaine<br class=""><div class="">-----<br class="">Elaine C. Meng, Ph.D. <br class="">UCSF Chimera(X) team<br class="">Department of Pharmaceutical Chemistry<br class="">University of California, San Francisco<br class=""><br class=""><img apple-inline="yes" id="D1B49E5A-D6C7-4A09-9A8C-5A426849C9EF" width="477" height="297" src="cid:B1F7496D-1218-4D4D-ADC5-B7EFBD2B399B" class=""><br class=""><br class=""></div><br class=""><blockquote type="cite" class="">On Mar 25, 2021, at 8:23 PM, Tom Goddard <<a href="mailto:goddard@sonic.net" class="">goddard@sonic.net</a>> wrote:<br class=""><br class="">Hi Andre,<br class=""><br class=""> It is not currently possible to display silhouettes on some models and not others.<br class=""><br class=""> Several people have wanted this but I think it is complex to achieve. The silhouettes show boundaries where the depth in the entire scene changes abruptly. In order to have per-model silhouettes the ChimeraX GPU shader programs would need to compute an additional depth buffer separately for each model. Also the silhouette edges are not currently drawn at a specific depth. If per-model silhouettes were supported a stick model with silhouettes beneath a transparent surface needs to draw the silhouettes under the transparent surface so knowing the depth of the silhouette edge becomes important. When not using silhouettes the shader programs need to not compute the extra per-model depth buffers otherwise it would slow down rendering even when not being used. Adding these additional complexities to already complex graphics rendering shader programs have so far made this feature out of reach for our one graphics rendering developer (me).<br class=""><br class=""> I made a feature request for per-model silhouette edges and perhaps in the future we will find a simpler way to implement it that makes it feasible.<br class=""><br class=""><span class="Apple-tab-span" style="white-space:pre"> </span><a href="https://www.rbvi.ucsf.edu/trac/ChimeraX/ticket/4420" class="">https://www.rbvi.ucsf.edu/trac/ChimeraX/ticket/4420</a><br class=""><br class=""> Tom<br class=""><br class=""><blockquote type="cite" class="">On Mar 25, 2021, at 10:09 PM, Andre LB Ambrosio <andre@ifsc.usp.br> wrote:<br class=""><br class="">Dear all,<br class=""><br class="">I wonder if it's possible to display silhouettes selectively in the same figure; for instance, displaying silhouettes only on structure representation (around sticks, spheres, cartoons and so on), but not around the maps or volumes that surround them.<br class="">Many thanks in advance, <br class=""><br class="">Andre<br class="">_</blockquote></blockquote></div></div></div></body></html>