mmdoogie

<ul>
<li>Adds STL as a media type for uploads.</li>
<li>Adds STL as a filter in media browser for picking items.</li>
<li>Provides editor block for embedding a viewer, based on viewstl plugin.
<ul>
<li>Editor block uses media browser to pick model.</li>
<li>Options to set model color, background color, border, auto rotation, etc.</li>
<li>Editor block updates with changes to match what live site would display.</li>
</ul>
</li>
<li>Relevant elements are prefixed to allow displaying multiple viewers on one site page.</li>
</ul>

Embed STL

Adds STL as a media type for uploads, provides editor block for embeddable viewer based on viewstl plugin.

christian.loelkes

With a simple shortcode you can enable and embed a WebGL viewer to show 3d stl files.
In the current version:
<ul>
<li>STL files have to be uploaded to /wp-content/uploads</li>
<li>The viewer can’t be used more than one time per page. This might be a feature because the viewer needs a lot of resources.</li>
</ul>
A complete description of the plugin can be found on <a href="https://www.db4cl.com/projects/stlviewer-1-0-for-wordpress/" rel="nofollow ugc">my blog</a>.

STL Viewer

With a simple shortcode you can enable and embed a WebGL viewer to show 3d stl files.

Embed STL vs STL Viewer