Samsung TV: Added Ignore BG Alpha Clear checkbox to Resolution section of Samsung TV player settings.VR: Optimized Oculus to start CPU work for next frame while Rendering the current frame.Previously, if the material had the right outputs for the metallic and the specular workflows, then the specular workflow would be selected. Substance: When importing a SBSAR file, the metallic workflow is now picked up by default if the material has the right outputs, even if it also has the right outputs for the specular workflow.Substance: ExportPreset was added to the ProceduralMaterialInspector's context menu.Substance: SubstanceImporter.ExportBitmaps is now public.Substance: Substance textures cached to disk/flash are now LZ4-compressed, old caches are discarded.SceneManagement: Added SceneManager.UnloadScene(Scene) making it easier to unload a scene if you already have a reference to it.RuntimeInitializeOnLoad now fires more consistently when entering playmode in the Editor and playing at Runtime. This is useful when running in single-player or offline mode, but as a Network Host. Networking: Added dontListen flag to NetworkServer.Networking: Added a warning for NetworkIdentity on child game objects.JsonUtility: Serialize Color32 fields as separate RGBA values instead of a binary blob.iOS: Use new Game Center APIs when possible.IL2CPP: Added support for the MethodImplOptions.NoInlining option to prevent methods in the generated C++ code from being inlined.Graphics: Added client/worker multithreaded rendering support to OS X Metal.This is mostly visible when using deferred rendering. Graphics: Optimized performance of setting up shader blend/depth/raster/stencil states.All VR Players are now forced to Run in the background. VR: Added support for VR Application Focus.Analytics: Added support for fetching GoogleAdsId via new API RequestAdvertisingIdentifierAsync.Because both file elements are compressed, MP4s normally have a smaller file size than many other video formats, but still maintain relatively high quality for sharing online. The video part is usually compressed with MPEG-4, and the audio is usually compressed using AAC, which is the audio format associated with iTunes.
MP4 videos are made up of video and audio elements that are compressed separately. MP4 is usually the preferred format for uploading videos to YouTube, Vimeo or other websites. As MP4 is a standardised format, it will normally play easily on most devices and media players, including Windows Media Player, QuickTime, and VLC. It was originally developed by the Moving Picture Experts Group (MPEG) but has become an ISO standard, meaning that it’s now maintained by the International Organisation for Standardization. MP4 was developed to be easily played and shared. MP4, sometimes called MPEG4, is one of the most common video formats.
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