To play audio, control cameras, and process audio, use AVFoundation. Increase engagement and realism by adding sound effects and music that complement the action within your game.Īdd audio, sounds, and music. To learn more, see Monitoring your Metal app’s graphics performance. Overlay the Metal Performance HUD on your game to view CPU and GPU metrics in real time. To learn more, see Profile and optimize your game’s memory. Use Instruments profiling tools to maintain a small memory footprint and improve your game’s frame rates. To learn more, see Analyzing the performance of your Metal app. To analyze slowness in your game’s frame rate, use the Game Performance template in Instruments, which combines threading and system call information with the Metal System Trace instrument. Use shader debugger to investigate visual artifacts on a capture of your Metal workload.įix graphics interruptions or stutters. Capture your Metal workload and use the Performance timeline to explore GPU execution performance. Use Metal debugger to investigate visual artifacts and optimize GPU performance. To learn more, see Validating your app’s Metal API usage and Validating your app’s Metal shader usage. Run your game in Xcode to validate your Metal code and catch shader execution errors. Use the powerful suite of Metal development tools to help make your game fast and efficient. To find working code for features you want to implement, see Metal Sample Code Library. To implement ray tracing on the GPU, see Accelerating ray tracing using Metal. Encode compute passes, which run in parallel with render passes on the multiple cores of the GPU, so that computations don’t impact graphics rendering. Use the Metal Performance Shaders framework to apply high-performance filters to images, multiply matrices, and vectors. Use the MetalFX framework to upscale low-resolution images to higher-resolution images in less time than directly rendering an image. Improve performance of your 3D scenes using high-performance temporal antialiasing or spatial upscaling. Load graphics resources faster by streaming asset data to textures and buffers asynchronously. To learn more, see GPU Devices and Work Submissions. To execute commands on the device’s graphics processing unit (GPU), create a command buffer, write commands into it, and commit the buffer to a command queue. Metal provides a low-level API for hardware-accelerated 2D and 3D graphics on all Apple platforms, as well as powerful features designed especially for Apple silicon. Use Metal to get the best graphics performance out of the player’s powerful Apple hardware. For platform-specific design guidance, see Human Interface Guidelines > Platforms. In visionOS, allow for passthrough, adapt audio to the player’s surroundings, handle touch events, and add custom gestures. Take advantage of high-resolution displays, Apple silicon, external game controllers, headphones, and speakers. Let players interact with your game using Multi-Touch gestures and voice control when possible. Consider that the player may be traveling, sitting at their desk, relaxing on the couch, or standing in their living room while playing your game. Great games incorporate the unique characteristics and capabilities of the devices that they run on. If you prefer to use C++ for Metal, or have a Unity™ project, see Bring existing games to Apple platforms below. Start by creating an Xcode project, then select a platform, the Game template, and the game technology you want to use, such as Metal. Xcode includes the SDKs for iOS, iPadOS, macOS, tvOS, visionOS, and watchOS.
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