From what I&#x27;ve read, you can get pretty good performance on an iPad Pro.  Here&#x27;s 8M pixels:<p><a href="http:&#x2F;&#x2F;flexmonkey.blogspot.com&#x2F;2015&#x2F;11&#x2F;a-first-look-at-metal-performance-on.html" rel="nofollow">http:&#x2F;&#x2F;flexmonkey.blogspot.com&#x2F;2015&#x2F;11&#x2F;a-first-look-at-metal...</a><p>The author provides the source.  Portable to the Mac?<p><a href="https:&#x2F;&#x2F;github.com&#x2F;FlexMonkey&#x2F;ParticleLab" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;FlexMonkey&#x2F;ParticleLab</a>