<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">This is a graphics driver problem related to OpenGL “instancing”, the graphics technique that renders atoms and bonds as lots of copies of spheres and cylinders. Turning off DrawElementsInstanced will fall back to an older slower technique.<div class=""><br class=""></div><div class="">Could you use Help / Report a Bug… and say stick atoms and bonds appear black in the description? This will give us info about your graphics, I see it in your pasted Debug OpenGL image but it would be good to document in a bug report so we no the fix if others report it.</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>Tom</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Oct 5, 2017, at 11:09 AM, VAZQUEZ SENTIS MARCO EUGENIO <<a href="mailto:eugenio.vazquez@usc.es" class="">eugenio.vazquez@usc.es</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" class="">
<div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">
Dear Eric,
<div class=""><br class="">
</div>
<div class="">Thank you very much for your email. I’ve been playing around with the "<i class="">Debug OpenGL on startup</i>" option, and I finally found a way for the program to behave normally. </div>
<div class=""><br class="">
</div>
<div class="">So, the good settings are: </div>
<div class=""> <span id="cid:DE917D51-2483-4A2A-BC76-37F0F916AB05@mundo-R.com"><PastedGraphic-4.png></span></div>
<div class=""><br class="">
</div>
<div class="">And originally I had <i class="">DrawElementsInstanced</i> checked, which made the bonds look funny. </div>
<div class=""><br class="">
</div>
<div class="">Thanks a lot anyway, and thank you for the great Chimera software. I’ve tried most of them, and Chimera is the one that makes the nicest images (ribbons comes close, but it’s nowhere near in ease of use). </div>
<div class=""><br class="">
</div>
<div class="">All the best from Spain!</div>
<div class=""><br class="">
</div>
<div class="">e</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
<div class=""><br class="">
<blockquote type="cite" class="">
<div class="">On Oct5 2017, at 19:58, Eric Pettersen <<a href="mailto:pett@cgl.ucsf.edu" class="">pett@cgl.ucsf.edu</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">
Hi Eugenio,
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>No, no one else has reported this. We just upgraded one of the machines in our lab to High Sierra and don’t see this behavior on it. It kind of looks like you have silhouette edges
too thick. Try going to the Effects panel of Side View (Tools->Viewing Controls->Effects) and turn off silhouette edges and see what happens. If that helps, then maybe you could turn it back on but put a smaller value in the the “width” entry for silhouette
edges.</div>
<div class=""><br class="">
</div>
<div class="">—Eric</div>
<div class=""><br class="">
<div class="">
<div style="letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">
<div class=""><span class="Apple-tab-span" style="white-space: pre;"></span>Eric Pettersen</div>
<div class=""><span class="Apple-tab-span" style="white-space: pre;"></span>UCSF Computer Graphics Lab</div>
</div>
<br class="Apple-interchange-newline">
</div>
<br class="">
<div class="">
<blockquote type="cite" class="">
<div class="">On Sep 30, 2017, at 9:20 AM, VAZQUEZ SENTIS MARCO EUGENIO <<a href="mailto:eugenio.vazquez@usc.es" class="">eugenio.vazquez@usc.es</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">
Hey there,
<div class=""><br class="">
</div>
<div class="">Thanks for the information. However, the representation of atoms is still wrong in with High Sierra. I’m attaching an image of what I see. Have you received reports like this?. Is there any fix for that?</div>
<div class=""><br class="">
</div>
<div class="">thanks!!</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class=""><span id="cid:C21A9AF2-1CF2-4300-9F85-A65D871E91E9@mundo-R.com" class=""><atomsallweird.jpg></span></div>
</div>
_______________________________________________<br class="">
Chimera-users mailing list: <a href="mailto:Chimera-users@cgl.ucsf.edu" class="">
Chimera-users@cgl.ucsf.edu</a><br class="">
Manage subscription: <a href="http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users" class="">
http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users</a><br class="">
</div>
</blockquote>
</div>
<br class="">
</div>
</div>
</div>
</blockquote>
</div>
<br class="">
</div>
</div>
_______________________________________________<br class="">Chimera-users mailing list: <a href="mailto:Chimera-users@cgl.ucsf.edu" class="">Chimera-users@cgl.ucsf.edu</a><br class="">Manage subscription: <a href="http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users" class="">http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users</a><br class=""></div></blockquote></div><br class=""></div></body></html>