This explains - thanks! So I need to compare performance between the android and iOS devices to get a valid comparison.
The group has 20 small images. I will turn them into large images to increase the demand on pixel processing. Sent from my iPhone > On Aug 11, 2017, at 5:37 AM, Mark Waddingham via use-livecode > <use-livecode@lists.runrev.com> wrote: > >> On 2017-08-10 03:38, Jonathan Lynch via use-livecode wrote: >> Actually, I had forgotten to set the layermode of the group. >> Now the number of passes on my Mac is 47 and on the android it is 31. >> This still seems rather close. I expected the slow android device to >> be like a quarter as fast. > > How many device pixels are there in your group when on your Mac compared to > on your slow android device? > > On Android and iOS, the engine uses OpenGLES to blit tiles to the screen > meaning that specific operation comes at virtually no cost. > > On Desktop it doesn't use OpenGL, so blitting is in software. On Mac, there > are two options CoreGraphics or software - I think the former tends to be a > bit quicker than the latter (particularly for larger numbers of pixels). > > Generally (for simple cases, where no mutation beyond movement is happening > in your display) you should find that acceleratedRendering will make > something on iOS/Android about the same speed as you would get on Desktop > without acceleratedRendering turned on. > > Warmest Regards, > > Mark. > >> Sent from my iPhone >>> On Aug 9, 2017, at 9:27 PM, jonathandly...@gmail.com wrote: >>> I created a group with ten buttons. I have a function that scrolls this >>> group as many times as it can in a second. >>> With acceleratedrendering on, it can scroll 30 times on my Mac. My very >>> slow android device also scrolls it 30 times. >>> With accelerated rendering off, it can scroll the group 87 times on the Mac >>> and 35 times on the android. >>> Why would the scrolling be faster with accelerated rendering off? >>> Why do both devices have the same speed with accelerated rendering on? >>> I thought accelerated rendering used the graphics card? Shouldn't this >>> graphically slow android be slower? >>> Sent from my iPhone >> _______________________________________________ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your >> subscription preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode > > -- > Mark Waddingham ~ m...@livecode.com ~ http://www.livecode.com/ > LiveCode: Everyone can create apps > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
