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Showing results for tags 'ibooks'.
Hi all, first of all congrats on the great animation engine. I am using GreenSock, mainly TimelineMax and TweenMax for timing and tweening positions, rotations etc. of my WebGL / ThreeJS scene objects. The resulting format is always an interactive (Apple) iBook for children - basically a compressed website that runs with a WebKit standard similar to the one used in Safari Mobile. Performance was never a real issue until a colleague recently discovered that certain animations freeze or behave different (jumpy, stuttery) after running for several minutes (about 10-15 minutes dependent on the device) while others still run smoothly. It occurs only on the mobile device and only on generations < iPhone 6. What helps is to throttle the TweenMax ticker fps down to 30, but of course this doesn't look as smooth. I also tried playing with the lagSmoothing - with no success. Do you have an idea where these freezes come from? Since they occur only after a certain amount of time.. could it be that the JS execution stack suddenly becomes too big because the device isn't really capable of doing 60fps? Turning RAF on and of also didn't change much. Thanks for any hints or input.