Esegui il rendering della tua app AR utilizzando Vulkan sull'SDK Android (Kotlin/Java)
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Quando Config.TextureUpdateMode è impostato su TextureUpdateMode.EXPOSE_HARDWARE_BUFFER, ARCore fornirà un buffer hardware Android quando viene chiamato Session.update(). Questo buffer hardware può essere associato a un VkImage Vulkan.
Visualizza l'applicazione di esempio
Il supporto del rendering Vulkan è dimostrato nell'app di esempio hello_ar_vulkan_c.
Attivare la modalità di output del buffer hardware
Il valore Config.TextureUpdateMode configurato determina in che modo ARCore aggiorna la trama della fotocamera. Se è impostato su TextureUpdateMode.EXPOSE_HARDWARE_BUFFER, ARCore fornirà l'immagine della videocamera tramite un HardwareBuffer.
Configura la sessione in modo che utilizzi TextureUpdateMode.EXPOSE_HARDWARE_BUFFER:
Java
Config config = session.getConfig();
config.setTextureUpdateMode(Config.TextureUpdateMode.EXPOSE_HARDWARE_BUFFER);
session.configure(config);
Kotlin
session.configure(
session.config.apply { textureUpdateMode = Config.TextureUpdateMode.EXPOSE_HARDWARE_BUFFER }
)
Ottenere il buffer hardware
Quando TextureUpdateMode.EXPOSE_HARDWARE_BUFFER è attivato, utilizza Frame.getHardwareBuffer() per ottenere il buffer hardware:
Java
try {
HardwareBuffer buffer = frame.getHardwareBuffer();
// Use the buffer object in your rendering.
} catch (NotYetAvailableException e) {
// The hardware buffer is not ready yet.
}
Kotlin
try {
val buffer = frame.hardwareBuffer
// Use the buffer object in your rendering.
} catch (e: NotYetAvailableException) {
// The hardware buffer is not ready yet.
}
Utilizzare il buffer hardware durante il rendering Vulkan
Consulta vulkan_handler.cc per un esempio di come eseguire il rendering di un'applicazione AR utilizzando Vulkan.
Dispositivi supportati
Il supporto del rendering Vulkan è disponibile solo sui livelli API Android 27 e superiori. Inoltre, il dispositivo deve supportare l'estensione VK_ANDROID_external_memory_android_hardware_buffer.
Richiedi Vulkan nel file manifest dell'app
Google Play utilizza <uses-feature> dichiarato nel file manifest dell'app per filtrare la tua app dai dispositivi che non soddisfano i requisiti delle funzionalità hardware e software.
I dispositivi che utilizzano Vulkan 1.0 potrebbero non supportare l'estensione richiesta, ma i dispositivi compatibili con Vulkan 1.1 devono avere l'estensione richiesta a partire da Android 10 (livello API 29).
Salvo quando diversamente specificato, i contenuti di questa pagina sono concessi in base alla licenza Creative Commons Attribution 4.0, mentre gli esempi di codice sono concessi in base alla licenza Apache 2.0. Per ulteriori dettagli, consulta le norme del sito di Google Developers. Java è un marchio registrato di Oracle e/o delle sue consociate.
Ultimo aggiornamento 2025-07-26 UTC.
[null,null,["Ultimo aggiornamento 2025-07-26 UTC."],[[["\u003cp\u003eARCore can provide the camera image as an Android hardware buffer for efficient Vulkan rendering when \u003ccode\u003eTextureUpdateMode.EXPOSE_HARDWARE_BUFFER\u003c/code\u003e is enabled.\u003c/p\u003e\n"],["\u003cp\u003eThis hardware buffer can be accessed using \u003ccode\u003eFrame.getHardwareBuffer()\u003c/code\u003e and bound to a Vulkan \u003ccode\u003eVkImage\u003c/code\u003e for rendering.\u003c/p\u003e\n"],["\u003cp\u003eVulkan rendering with ARCore requires Android API level 27 or higher and device support for the \u003ccode\u003eVK_ANDROID_external_memory_android_hardware_buffer\u003c/code\u003e extension.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ehello_ar_vulkan_c\u003c/code\u003e sample app demonstrates how to implement Vulkan rendering with ARCore.\u003c/p\u003e\n"],["\u003cp\u003eTo ensure your app is only available on compatible devices, declare the Vulkan feature requirement in your app's manifest.\u003c/p\u003e\n"]]],["To utilize hardware buffer output, set `Config.TextureUpdateMode` to `EXPOSE_HARDWARE_BUFFER` during session configuration. This enables ARCore to provide a hardware buffer via `Session.update()`. Retrieve this buffer using `Frame.getHardwareBuffer()`. It can then be bound to a Vulkan `VkImage`. Vulkan rendering is demonstrated in the `hello_ar_vulkan_c` sample app. Support requires Android API level 27+, with the `VK_ANDROID_external_memory_android_hardware_buffer` extension and ensure your manifest declares Vulkan usage.\n"],null,["# Render your AR app using Vulkan on Android SDK (Kotlin/Java)\n\nWhen the [`Config.TextureUpdateMode`](/ar/reference/java/com/google/ar/core/Config.TextureUpdateMode) is set to [`TextureUpdateMode.EXPOSE_HARDWARE_BUFFER`](/ar/reference/java/com/google/ar/core/Config.TextureUpdateMode#expose_hardware_buffer), ARCore will provide an Android [hardware buffer](https://developer.android.com/ndk/reference/group/a-hardware-buffer) when [`Session.update()`](/ar/reference/java/com/google/ar/core/Session#update-) is called. This hardware buffer can be bound to a Vulkan [`VkImage`](https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VkImage.html).\n\nView the sample application\n---------------------------\n\nVulkan rendering support is demonstrated in the [hello_ar_vulkan_c sample app](https://github.com/google-ar/arcore-android-sdk/tree/master/samples/hello_ar_vulkan_c).\n\nEnable the hardware buffer output mode\n--------------------------------------\n\nThe configured [`Config.TextureUpdateMode`](/ar/reference/java/com/google/ar/core/Config.TextureUpdateMode) determines how ARCore will update the camera texture. When it is set to [`TextureUpdateMode.EXPOSE_HARDWARE_BUFFER`](/ar/reference/java/com/google/ar/core/Config.TextureUpdateMode#expose_hardware_buffer), ARCore will provide the camera image through a [`HardwareBuffer`](https://developer.android.com/reference/android/hardware/HardwareBuffer).\n\nConfigure the session to use [`TextureUpdateMode.EXPOSE_HARDWARE_BUFFER`](/ar/reference/java/com/google/ar/core/Config.TextureUpdateMode#expose_hardware_buffer): \n\n### Java\n\n```java\nConfig config = session.getConfig();\nconfig.setTextureUpdateMode(Config.TextureUpdateMode.EXPOSE_HARDWARE_BUFFER);\nsession.configure(config);\n```\n\n### Kotlin\n\n```kotlin\nsession.configure(\n session.config.apply { textureUpdateMode = Config.TextureUpdateMode.EXPOSE_HARDWARE_BUFFER }\n)\n```\n| **Note:** When using [`TextureUpdateMode.EXPOSE_HARDWARE_BUFFER`](/ar/reference/java/com/google/ar/core/Config.TextureUpdateMode#expose_hardware_buffer) on incompatible devices, [`Session.configure()`](/ar/reference/java/com/google/ar/core/Session#configure(com.google.ar.core.Config)) will fail and throw [`UnsupportedConfigurationException`](/ar/reference/java/com/google/ar/core/exceptions/UnsupportedConfigurationException).\n\nObtain the hardware buffer\n--------------------------\n\nWhen [`TextureUpdateMode.EXPOSE_HARDWARE_BUFFER`](/ar/reference/java/com/google/ar/core/Config.TextureUpdateMode#expose_hardware_buffer) is enabled, use [`Frame.getHardwareBuffer()`](/ar/reference/java/com/google/ar/core/Frame#getHardwareBuffer-) to get the hardware buffer: \n\n### Java\n\n```java\ntry {\n HardwareBuffer buffer = frame.getHardwareBuffer();\n // Use the buffer object in your rendering.\n} catch (NotYetAvailableException e) {\n // The hardware buffer is not ready yet.\n}\n```\n\n### Kotlin\n\n```kotlin\ntry {\n val buffer = frame.hardwareBuffer\n // Use the buffer object in your rendering.\n} catch (e: NotYetAvailableException) {\n // The hardware buffer is not ready yet.\n}\n```\n\nUse the hardware buffer during Vulkan rendering\n-----------------------------------------------\n\nSee [`vulkan_handler.cc`](https://github.com/google-ar/arcore-android-sdk/blob/master/samples/hello_ar_vulkan_c/app/src/main/cpp/vulkan_handler.cc) for an example of how to render an AR application using Vulkan.\n\nSupported devices\n-----------------\n\nVulkan rendering support is only available on Android API levels **27** and\nabove. Additionally, the device must support the `VK_ANDROID_external_memory_android_hardware_buffer` extension.\n\n### Require Vulkan in your app's manifest\n\nGoogle Play uses `\u003cuses-feature\u003e` declared in your app manifest to filter your\napp from devices that don't meet its hardware and software feature requirements.\nDevices using Vulkan 1.0 **might not** support the required extension, but devices\ncompatible with Vulkan 1.1 **must** have the required extension starting in Android 10 (API level 29)."]]
