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I know that these forums are much less active than they should be, but I am still posting this in the hope that some people (and hopefully someone from Apple) see it. I am also sure that I am not the first one to think of it, but I would like to raise the awareness on this topic Now that Khronos has released SPIR-V specification, we have a cross-platform language-agnostic high-level bytecode for specifying shaders. I believe that it would be a big benefit for Metal to have a SPIR-V interface. I am sure that the Metal IR already has a high degree of resemblance to SPIR-V and the translation between two levels can be done in a fairly simple way (or ideally, Metal could adopt SPIR-V itself). Benefits are as follows:1. It would be much easier to port between Metal and other APIs (like OpenGL or Vulkan), simplifying cross-plaftorm development2. Apple developers would get access to a vast shader library and third-party tools3. A stable IR promotes better quality software

I have an app that does background scanning and a BLE device which advertises with a 20ms interval.I have two iPhone 5S bought together and both with iOS 9.1. I do have the same app on both phones and I'm using the same BLE device for my testing.No other BLE apps are running.When I'm advertising (app in backgroud, display off), iPhone 1 is seeing 5-10 packets per second and the iPhone 2 is seeing approx. 0.5 packet per second.What may cause such a very big difference in dections - we are talking about a factor 10?Kind regardsFreddy

Hi My name's Martin Gill. I'm a therapist in the uk working with children and families.I am new to app design but want to write my first ipad or iphone app to ask 15 descriptions with 5 possible answers (i.e 'a lot like me', 'not like me' etc.)The scores of the answers add up to produce an overall score and three further category scores based on 3x5 answers.The app will need to collect data and save it in a database so may need a user password system.It will also need to be able to send the data to an email address.(possibly encrypted).I realise this is a big ask but is there a possible collaborator who can help me with this project?Thanks. Martin

Is anyone else having a problem trying to install and authenticate sandboxed apps in 10.11.2?Ive just got this feednback form one of my testers so im interested to know ifd anyone else is seeign the same thing.If a live account is not signed into the AppStore, the AppStore is then launched, test account details are not accepted and application cannot be authenticated.If a live account is currently signed into the AppStore when authenticating the application, a separate sign in box is displayed. Entering sandboxed test account details into the box presents a notification that AppleID has not been used with the AppStore and will need to be reviewed.Selecting to review redirects the user to the AppStore and a session timed out page.-------We can roll back to 10.11 ot boot into a 10.10.5 partiton to install and authenticate apps but this is a big screw up on apples part if this is legit.

I've filed a bug (#23844584) with a link to a sample project. (I tried to attach the project to the bug, but the upload keeps failing-- it's only a ~500k zip file 😕).This is 100% reproducible with the configuration described. Any help is appreciated, either from Apple engineers or someone who has found a work-around for this.Here's the text of the bug:Summary: Please see the attached sample project. Images in both correct and bad atlases are exactly the same size, but the bad images are stretched when applied. This has been observed in my project with any textures applied under the following circumstances:1. Texture image has an alpha-channel buffer surrounding non-alpha pixels2. Texture is built from Texture Atlas within an Asset Catalog3. TextureAtlas has provides namespace set to true4. Textures are applied by an animateWithTextures SKAction created in the action editor and saved in an .sks file.Steps to Reproduce:1. Run App2. Select Good Texture Sizing then tap screen to add correctly textured sprite3. S

I'm having a big problem getting started. Apple will only let me sign up as an individual because i'm a sole proprietor, so I have to use my personal name in the app store. This is a huge privacy issue for me and I can't do it. That leaves me having to form a different type of company.I've looked around and found that in Canada pretty much the only company structure that Apple will accept is a corporation. This would completely change how my company operates and cost a lot of money. I've called and emailed Apple directly and they could offer no help.Are there any Canadians out there that could help me figure out some other options?

Sincerely, I do not understand what Apple are doing with Swift!!!It is the only programming language that is incapable to run the code below:var x: Int = 2var y: Double = 2.0var z: Double = y / xThe expected value of z is 1.0.Any language can make this calculation, except Swift.This imposes a big difficulty where it should not be.Int and Double must be freely convertible one to another, at least using casting.You can not do any thing below:var k: Doublek = Double(x)k = Double(x.value)k = (Double) xk = (Double) x.valueSerious???I am very dissapointed with Swift because of it.It had everything to be a good language to program but it is not because this bug.