diff --git a/vr-poc/.gitignore b/vr-poc/.gitignore
new file mode 100644
index 0000000..4adac5f
--- /dev/null
+++ b/vr-poc/.gitignore
@@ -0,0 +1,11 @@
+local.properties
+.gradle/
+build/
+app/build/
+app/.cxx/
+*.keystore
+
+# SDK files (prebuilt binaries i headery — nie w git)
+libs/arm64-v8a/*.so
+ovr_sdk/OpenXR/Include/openxr/*.h
+ovr_sdk/OpenXR/Libs/**/*.so
diff --git a/vr-poc/README.md b/vr-poc/README.md
new file mode 100644
index 0000000..ff21667
--- /dev/null
+++ b/vr-poc/README.md
@@ -0,0 +1,147 @@
+# vr-poc — Phase 1: passthrough + quad panel (native OpenXR, Quest 3)
+
+Natywna apka C++/NDK, arm64-v8a. Renderuje passthrough + jeden statyczny panel
+przed użytkownikiem. Brak LLM, brak TTS — czysty baseline do pomiaru FPS.
+
+Szczegóły architektury: `../docs/POC_VR_SPEC.md`.
+
+---
+
+## Wymagane pliki SDK
+
+Przed `./gradlew assembleDebug` musisz zainstalować toolchain i wrzucić dwa
+zestawy plików. Poniżej dokładna lista — bez tych plików build nie przejdzie.
+
+### 1. Android SDK + NDK + CMake
+
+Zainstaluj przez Android Studio (SDK Manager) lub `sdkmanager`:
+
+```bash
+# Jeśli masz sdkmanager (cmdline-tools):
+sdkmanager "platforms;android-35" \
+ "build-tools;35.0.0" \
+ "ndk;27.2.12479018" \
+ "cmake;3.22.1"
+```
+
+Oczekiwane lokalizacje (domyślna instalacja Linux):
+```
+~/Android/Sdk/platforms/android-35/
+~/Android/Sdk/build-tools/35.0.0/
+~/Android/Sdk/ndk/27.2.12479018/
+~/Android/Sdk/cmake/3.22.1/
+```
+
+Następnie skopiuj `local.properties.template` → `local.properties`
+(plik jest w `.gitignore`):
+```bash
+cp local.properties.template local.properties
+# Upewnij się że sdk.dir wskazuje na Twój Android/Sdk
+```
+
+### 2. Meta OpenXR Mobile SDK — headery
+
+Pobierz **Meta OpenXR Mobile SDK** z:
+> https://developer.oculus.com/downloads/package/oculus-openxr-mobile-sdk/
+
+Aktualnie testowana wersja: **v71** (lub nowsza).
+
+Po pobraniu i rozpakowaniu skopiuj **dokładnie te 4 pliki**:
+
+| Źródło w archiwum SDK | Cel w projekcie |
+|--------------------------------------------------|-----------------------------------------------------|
+| `OpenXR/Include/openxr/openxr.h` | `ovr_sdk/OpenXR/Include/openxr/openxr.h` |
+| `OpenXR/Include/openxr/openxr_platform.h` | `ovr_sdk/OpenXR/Include/openxr/openxr_platform.h` |
+| `OpenXR/Include/openxr/openxr_platform_defines.h`| `ovr_sdk/OpenXR/Include/openxr/openxr_platform_defines.h` |
+| `OpenXR/Include/openxr/openxr_reflection.h` | `ovr_sdk/OpenXR/Include/openxr/openxr_reflection.h`|
+
+Szybko przez jeden `cp -r`:
+```bash
+SDK_DIR=~/Downloads/ovr_sdk_mobile_openxr_v71 # dopasuj nazwę folderu
+cp "$SDK_DIR"/OpenXR/Include/openxr/openxr*.h \
+ /home/oskar/projects/ipin-vr/vr-poc/ovr_sdk/OpenXR/Include/openxr/
+```
+
+### 3. Meta OpenXR Mobile SDK — loader `.so`
+
+Z tego samego archiwum SDK skopiuj **loader** do `libs/arm64-v8a/`:
+
+| Źródło w archiwum SDK | Cel w projekcie |
+|--------------------------------------------------------------------------|----------------------------------------|
+| `OpenXR/Libs/Android/arm64-v8a/Release/libopenxr_loader.so` | `libs/arm64-v8a/libopenxr_loader.so` |
+
+```bash
+cp "$SDK_DIR"/OpenXR/Libs/Android/arm64-v8a/Release/libopenxr_loader.so \
+ /home/oskar/projects/ipin-vr/vr-poc/libs/arm64-v8a/
+```
+
+Ten plik musi być w **dwóch miejscach** (albo możesz zrobić symlink):
+- `libs/arm64-v8a/libopenxr_loader.so` — dla Gradle (pakuje do APK jako `lib/arm64-v8a/`)
+- CMakeLists.txt czyta go z tej samej lokalizacji do linkowania
+
+---
+
+## Build i deploy
+
+```bash
+cd vr-poc/
+
+# Weryfikacja: upewnij się że te pliki istnieją
+ls libs/arm64-v8a/libopenxr_loader.so
+ls ovr_sdk/OpenXR/Include/openxr/openxr.h
+
+# Build APK (debug)
+./gradlew assembleDebug
+
+# Install na Quest 3 (włącz Developer Mode, podłącz USB)
+adb install -r app/build/outputs/apk/debug/app-debug.apk
+
+# Logi z apki
+adb logcat -s ipin-vr-poc
+```
+
+APK output: `app/build/outputs/apk/debug/app-debug.apk`
+
+---
+
+## Weryfikacja Phase 1 (Definition of Done)
+
+- [ ] `./gradlew assembleDebug` — SUCCESS
+- [ ] `adb install` — wchodzi na urządzenie
+- [ ] Apka startuje w passthrough (widać świat przez kamery)
+- [ ] Pływający ciemnoniebieski panel widoczny ~1 m przed użytkownikiem
+- [ ] OVR Metrics Tool pokazuje ≥ 72 FPS (brak stale frames)
+
+Obserwacja FPS: uruchom OVR Metrics Tool na urządzeniu przed startem apki.
+
+---
+
+## Struktura kodu
+
+```
+vr-poc/
+ app/
+ CMakeLists.txt # CMake: native_app_glue + openxr_loader + ipin_vr_poc
+ src/main/
+ AndroidManifest.xml # NativeActivity, com.oculus.feature.PASSTHROUGH
+ cpp/
+ main.cpp # Cały OpenXR: EGL + passthrough + quad layer
+ res/values/strings.xml
+ libs/
+ arm64-v8a/
+ libopenxr_loader.so # [WRZUĆ TU — patrz §2/§3 powyżej]
+ ovr_sdk/
+ OpenXR/Include/openxr/ # [WRZUĆ TU headery — patrz §2 powyżej]
+```
+
+---
+
+## Następne fazy (wg POC_VR_SPEC.md §12)
+
+| Faza | Co dodajemy |
+|------|-------------------------------------------------------|
+| 2 | llama.cpp worker, generacja na trigger (log tok/s) |
+| 3 | CPU affinity konfigurowalna, pomiar wpływu na FPS |
+| 4 | sherpa-onnx + Oboe TTS |
+| 5 | stb_truetype — tekst polecenia na panelu |
+| 6 | Soak 15 min, logowanie, wykres FPS/temp |
diff --git a/vr-poc/app/CMakeLists.txt b/vr-poc/app/CMakeLists.txt
new file mode 100644
index 0000000..7513d75
--- /dev/null
+++ b/vr-poc/app/CMakeLists.txt
@@ -0,0 +1,64 @@
+cmake_minimum_required(VERSION 3.22)
+project(ipin_vr_poc VERSION 1 LANGUAGES C CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# ── Paths into ovr_sdk/ (one directory above app/) ───────────────────────────
+set(OVR_SDK_ROOT "${CMAKE_SOURCE_DIR}/../ovr_sdk")
+set(OPENXR_INCLUDE "${OVR_SDK_ROOT}/OpenXR/Include")
+set(OPENXR_LIB_DIR "${CMAKE_SOURCE_DIR}/../libs/arm64-v8a")
+
+if (NOT EXISTS "${OPENXR_INCLUDE}/openxr/openxr.h")
+ message(FATAL_ERROR
+ "openxr.h not found at ${OPENXR_INCLUDE}/openxr/openxr.h\n"
+ "See vr-poc/README.md §'Wymagane pliki SDK' for setup instructions.")
+endif()
+
+# ── android_native_app_glue (from NDK) ───────────────────────────────────────
+add_library(native_app_glue STATIC
+ ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c
+)
+target_include_directories(native_app_glue PUBLIC
+ ${ANDROID_NDK}/sources/android/native_app_glue
+)
+target_link_libraries(native_app_glue PUBLIC android log)
+
+# ── OpenXR loader (prebuilt, from Meta OVR SDK → libs/arm64-v8a/) ─────────────
+add_library(openxr_loader SHARED IMPORTED)
+set_target_properties(openxr_loader PROPERTIES
+ IMPORTED_LOCATION "${OPENXR_LIB_DIR}/libopenxr_loader.so"
+)
+
+# ── NDK system libraries ──────────────────────────────────────────────────────
+find_library(LIB_ANDROID android)
+find_library(LIB_LOG log)
+find_library(LIB_EGL EGL)
+find_library(LIB_GLES3 GLESv3)
+
+# ── Main native library ───────────────────────────────────────────────────────
+add_library(ipin_vr_poc SHARED
+ src/main/cpp/main.cpp
+)
+
+target_include_directories(ipin_vr_poc PRIVATE
+ ${OPENXR_INCLUDE}
+ ${ANDROID_NDK}/sources/android/native_app_glue
+)
+
+target_compile_definitions(ipin_vr_poc PRIVATE
+ XR_USE_PLATFORM_ANDROID
+ XR_USE_GRAPHICS_API_OPENGL_ES
+)
+
+target_link_libraries(ipin_vr_poc PRIVATE
+ native_app_glue
+ openxr_loader
+ ${LIB_ANDROID}
+ ${LIB_LOG}
+ ${LIB_EGL}
+ ${LIB_GLES3}
+)
+
+# Force export of android_main (entry point for NativeActivity)
+target_link_options(ipin_vr_poc PRIVATE "-Wl,--undefined=android_main")
diff --git a/vr-poc/app/build.gradle b/vr-poc/app/build.gradle
new file mode 100644
index 0000000..bf26a32
--- /dev/null
+++ b/vr-poc/app/build.gradle
@@ -0,0 +1,66 @@
+plugins {
+ id 'com.android.application'
+}
+
+android {
+ namespace 'com.ipin.vr.poc'
+ compileSdk 35
+
+ defaultConfig {
+ applicationId "com.ipin.vr.poc"
+ minSdk 29
+ targetSdk 32
+ versionCode 1
+ versionName "1.0.0-phase1"
+
+ ndk {
+ abiFilters "arm64-v8a"
+ }
+
+ externalNativeBuild {
+ cmake {
+ cppFlags "-std=c++17 -O2 -fvisibility=hidden"
+ arguments "-DANDROID_STL=c++_shared",
+ "-DANDROID_ARM_NEON=TRUE"
+ }
+ }
+ }
+
+ ndkVersion "27.2.12479018"
+
+ externalNativeBuild {
+ cmake {
+ path "CMakeLists.txt"
+ version "3.22.1"
+ }
+ }
+
+ buildTypes {
+ debug {
+ debuggable true
+ jniDebuggable true
+ minifyEnabled false
+ }
+ release {
+ minifyEnabled false
+ signingConfig signingConfigs.debug
+ }
+ }
+
+ sourceSets {
+ main {
+ // Prebuilt libopenxr_loader.so — user drops it in libs/arm64-v8a/
+ jniLibs.srcDirs += ['../libs']
+ }
+ }
+
+ // Keep .so symbols in debug builds for logcat crash symbolication
+ packagingOptions {
+ doNotStrip "**/*.so"
+ }
+
+ compileOptions {
+ sourceCompatibility JavaVersion.VERSION_11
+ targetCompatibility JavaVersion.VERSION_11
+ }
+}
diff --git a/vr-poc/app/src/main/AndroidManifest.xml b/vr-poc/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..28fd43f
--- /dev/null
+++ b/vr-poc/app/src/main/AndroidManifest.xml
@@ -0,0 +1,41 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/vr-poc/app/src/main/cpp/main.cpp b/vr-poc/app/src/main/cpp/main.cpp
new file mode 100644
index 0000000..4880ec7
--- /dev/null
+++ b/vr-poc/app/src/main/cpp/main.cpp
@@ -0,0 +1,484 @@
+// ipin-vr-poc — Phase 1: passthrough + static quad panel
+// No LLM, no TTS. Render-only baseline for FPS measurement (§12 Phase 1).
+//
+// Build requires:
+// - Meta OpenXR Mobile SDK headers in ovr_sdk/OpenXR/Include/
+// - libopenxr_loader.so in libs/arm64-v8a/
+// See README.md §"Wymagane pliki SDK".
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include
+#include
+#include
+#include
+
+#define TAG "ipin-vr-poc"
+#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, TAG, __VA_ARGS__)
+#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, TAG, __VA_ARGS__)
+#define LOGW(...) __android_log_print(ANDROID_LOG_WARN, TAG, __VA_ARGS__)
+
+// Aborts on XrResult failure — only used during init where recovery is not possible.
+#define CHK_XR(expr) \
+ do { \
+ XrResult _r = (expr); \
+ if (XR_FAILED(_r)) { \
+ LOGE("XR FAIL %d at " __FILE__ ":%d " #expr, _r, __LINE__); \
+ return false; \
+ } \
+ } while (0)
+
+// ── XR_FB_passthrough dynamic function pointers ───────────────────────────────
+static PFN_xrCreatePassthroughFB pfn_xrCreatePassthroughFB = nullptr;
+static PFN_xrDestroyPassthroughFB pfn_xrDestroyPassthroughFB = nullptr;
+static PFN_xrPassthroughStartFB pfn_xrPassthroughStartFB = nullptr;
+static PFN_xrPassthroughPauseFB pfn_xrPassthroughPauseFB = nullptr;
+static PFN_xrCreatePassthroughLayerFB pfn_xrCreatePassthroughLayerFB = nullptr;
+static PFN_xrDestroyPassthroughLayerFB pfn_xrDestroyPassthroughLayerFB = nullptr;
+static PFN_xrPassthroughLayerResumeFB pfn_xrPassthroughLayerResumeFB = nullptr;
+static PFN_xrPassthroughLayerPauseFB pfn_xrPassthroughLayerPauseFB = nullptr;
+
+// ── EGL context (headless PBuffer — required by OpenXR GLES binding) ─────────
+struct EglCtx {
+ EGLDisplay display = EGL_NO_DISPLAY;
+ EGLConfig config = {};
+ EGLContext context = EGL_NO_CONTEXT;
+ EGLSurface surface = EGL_NO_SURFACE;
+
+ bool init() {
+ display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ if (display == EGL_NO_DISPLAY) { LOGE("eglGetDisplay failed"); return false; }
+
+ EGLint major = 0, minor = 0;
+ if (!eglInitialize(display, &major, &minor)) {
+ LOGE("eglInitialize failed"); return false;
+ }
+ LOGI("EGL %d.%d", major, minor);
+
+ const EGLint cfg_attrs[] = {
+ EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT,
+ EGL_RED_SIZE, 8, EGL_GREEN_SIZE, 8, EGL_BLUE_SIZE, 8, EGL_ALPHA_SIZE, 8,
+ EGL_DEPTH_SIZE, 0,
+ EGL_NONE
+ };
+ EGLint n = 0;
+ if (!eglChooseConfig(display, cfg_attrs, &config, 1, &n) || n == 0) {
+ LOGE("eglChooseConfig failed"); return false;
+ }
+
+ const EGLint ctx_attrs[] = { EGL_CONTEXT_CLIENT_VERSION, 3, EGL_NONE };
+ context = eglCreateContext(display, config, EGL_NO_CONTEXT, ctx_attrs);
+ if (context == EGL_NO_CONTEXT) { LOGE("eglCreateContext failed"); return false; }
+
+ // Tiny PBuffer — we never render to it, OpenXR swapchain images are the real targets
+ const EGLint pb_attrs[] = { EGL_WIDTH, 16, EGL_HEIGHT, 16, EGL_NONE };
+ surface = eglCreatePbufferSurface(display, config, pb_attrs);
+ if (surface == EGL_NO_SURFACE) { LOGE("eglCreatePbufferSurface failed"); return false; }
+
+ if (!eglMakeCurrent(display, surface, surface, context)) {
+ LOGE("eglMakeCurrent failed"); return false;
+ }
+ LOGI("GLES3 context ready");
+ return true;
+ }
+
+ void destroy() {
+ if (display != EGL_NO_DISPLAY) {
+ eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+ if (context != EGL_NO_CONTEXT) eglDestroyContext(display, context);
+ if (surface != EGL_NO_SURFACE) eglDestroySurface(display, surface);
+ eglTerminate(display);
+ }
+ display = EGL_NO_DISPLAY;
+ context = EGL_NO_CONTEXT;
+ surface = EGL_NO_SURFACE;
+ }
+};
+
+// ── Application state ─────────────────────────────────────────────────────────
+struct App {
+ android_app* native_app = nullptr;
+ EglCtx egl;
+
+ XrInstance instance = XR_NULL_HANDLE;
+ XrSystemId system_id = XR_NULL_SYSTEM_ID;
+ XrSession session = XR_NULL_HANDLE;
+ XrSpace ref_space = XR_NULL_HANDLE;
+
+ // XR_FB_passthrough
+ XrPassthroughFB passthrough = XR_NULL_HANDLE;
+ XrPassthroughLayerFB passthrough_layer = XR_NULL_HANDLE;
+ bool has_passthrough = false;
+
+ // Quad swapchain — one 2D panel floating in front of the user
+ XrSwapchain quad_swapchain = XR_NULL_HANDLE;
+ uint32_t quad_w = 512;
+ uint32_t quad_h = 256;
+ std::vector quad_images;
+
+ // Session state machine
+ XrSessionState session_state = XR_SESSION_STATE_UNKNOWN;
+ bool session_running = false;
+ bool exit_requested = false;
+};
+
+static App g_app;
+
+// ─────────────────────────────────────────────────────────────────────────────
+
+static void load_ext_fns(XrInstance inst) {
+#define LOAD(fn) xrGetInstanceProcAddr(inst, #fn, (PFN_xrVoidFunction*)&pfn_##fn)
+ LOAD(xrCreatePassthroughFB);
+ LOAD(xrDestroyPassthroughFB);
+ LOAD(xrPassthroughStartFB);
+ LOAD(xrPassthroughPauseFB);
+ LOAD(xrCreatePassthroughLayerFB);
+ LOAD(xrDestroyPassthroughLayerFB);
+ LOAD(xrPassthroughLayerResumeFB);
+ LOAD(xrPassthroughLayerPauseFB);
+#undef LOAD
+ if (!pfn_xrCreatePassthroughFB)
+ LOGW("XR_FB_passthrough functions not loaded — passthrough disabled");
+}
+
+// ── Init ──────────────────────────────────────────────────────────────────────
+
+static bool create_instance(App& app) {
+ XrInstanceCreateInfoAndroidKHR android_info{XR_TYPE_INSTANCE_CREATE_INFO_ANDROID_KHR};
+ android_info.applicationVM = app.native_app->activity->vm;
+ android_info.applicationContext = app.native_app->activity->clazz;
+
+ const char* extensions[] = {
+ XR_KHR_ANDROID_CREATE_INSTANCE_EXTENSION_NAME, // "XR_KHR_android_create_instance"
+ XR_KHR_OPENGL_ES_ENABLE_EXTENSION_NAME, // "XR_KHR_opengl_es_enable"
+ XR_FB_PASSTHROUGH_EXTENSION_NAME, // "XR_FB_passthrough"
+ };
+
+ XrApplicationInfo app_info{};
+ strncpy(app_info.applicationName, "ipin-vr-poc", XR_MAX_APPLICATION_NAME_SIZE - 1);
+ app_info.apiVersion = XR_CURRENT_API_VERSION;
+
+ XrInstanceCreateInfo ci{XR_TYPE_INSTANCE_CREATE_INFO};
+ ci.next = &android_info;
+ ci.applicationInfo = app_info;
+ ci.enabledExtensionCount = static_cast(std::size(extensions));
+ ci.enabledExtensionNames = extensions;
+
+ CHK_XR(xrCreateInstance(&ci, &app.instance));
+
+ XrInstanceProperties ip{XR_TYPE_INSTANCE_PROPERTIES};
+ xrGetInstanceProperties(app.instance, &ip);
+ LOGI("XrInstance OK — runtime: %s", ip.runtimeName);
+ return true;
+}
+
+static bool get_system(App& app) {
+ XrSystemGetInfo sgi{XR_TYPE_SYSTEM_GET_INFO};
+ sgi.formFactor = XR_FORM_FACTOR_HEAD_MOUNTED_DISPLAY;
+ CHK_XR(xrGetSystem(app.instance, &sgi, &app.system_id));
+
+ XrSystemProperties sp{XR_TYPE_SYSTEM_PROPERTIES};
+ xrGetSystemProperties(app.instance, app.system_id, &sp);
+ LOGI("System: %s", sp.systemName);
+ return true;
+}
+
+static bool create_session(App& app) {
+ // Verify GLES is supported by this system
+ XrGraphicsRequirementsOpenGLESKHR gfx_req{XR_TYPE_GRAPHICS_REQUIREMENTS_OPENGL_ES_KHR};
+ PFN_xrGetOpenGLESGraphicsRequirementsKHR pfn_gfx_req = nullptr;
+ xrGetInstanceProcAddr(app.instance, "xrGetOpenGLESGraphicsRequirementsKHR",
+ (PFN_xrVoidFunction*)&pfn_gfx_req);
+ if (pfn_gfx_req)
+ pfn_gfx_req(app.instance, app.system_id, &gfx_req);
+
+ XrGraphicsBindingOpenGLESAndroidKHR binding{XR_TYPE_GRAPHICS_BINDING_OPENGL_ES_ANDROID_KHR};
+ binding.display = app.egl.display;
+ binding.config = app.egl.config;
+ binding.context = app.egl.context;
+
+ XrSessionCreateInfo sci{XR_TYPE_SESSION_CREATE_INFO};
+ sci.next = &binding;
+ sci.systemId = app.system_id;
+ CHK_XR(xrCreateSession(app.instance, &sci, &app.session));
+ LOGI("XrSession created");
+
+ // LOCAL space: floating panel stays fixed relative to room origin at startup
+ XrReferenceSpaceCreateInfo rsci{XR_TYPE_REFERENCE_SPACE_CREATE_INFO};
+ rsci.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_LOCAL;
+ rsci.poseInReferenceSpace = {{0.f, 0.f, 0.f, 1.f}, {0.f, 0.f, 0.f}};
+ CHK_XR(xrCreateReferenceSpace(app.session, &rsci, &app.ref_space));
+ return true;
+}
+
+static bool init_passthrough(App& app) {
+ if (!pfn_xrCreatePassthroughFB) {
+ app.has_passthrough = false;
+ return true;
+ }
+
+ XrPassthroughCreateInfoFB ptci{XR_TYPE_PASSTHROUGH_CREATE_INFO_FB};
+ ptci.flags = XR_PASSTHROUGH_IS_RUNNING_AT_CREATION_BIT_FB;
+ if (XR_FAILED(pfn_xrCreatePassthroughFB(app.session, &ptci, &app.passthrough))) {
+ LOGW("xrCreatePassthroughFB failed — running without passthrough");
+ app.has_passthrough = false;
+ return true;
+ }
+
+ XrPassthroughLayerCreateInfoFB ptlci{XR_TYPE_PASSTHROUGH_LAYER_CREATE_INFO_FB};
+ ptlci.passthrough = app.passthrough;
+ ptlci.flags = XR_PASSTHROUGH_IS_RUNNING_AT_CREATION_BIT_FB;
+ ptlci.purpose = XR_PASSTHROUGH_LAYER_PURPOSE_RECONSTRUCTION_FB;
+ if (XR_FAILED(pfn_xrCreatePassthroughLayerFB(app.session, &ptlci, &app.passthrough_layer))) {
+ LOGW("xrCreatePassthroughLayerFB failed — running without passthrough");
+ pfn_xrDestroyPassthroughFB(app.passthrough);
+ app.passthrough = XR_NULL_HANDLE;
+ app.has_passthrough = false;
+ return true;
+ }
+
+ app.has_passthrough = true;
+ LOGI("Passthrough enabled (XR_FB_passthrough)");
+ return true;
+}
+
+static bool create_quad_swapchain(App& app) {
+ // Pick a supported swapchain format — prefer SRGB8_ALPHA8
+ uint32_t fmt_count = 0;
+ xrEnumerateSwapchainFormats(app.session, 0, &fmt_count, nullptr);
+ std::vector fmts(fmt_count);
+ xrEnumerateSwapchainFormats(app.session, fmt_count, &fmt_count, fmts.data());
+
+ int64_t chosen = fmts.empty() ? GL_RGBA8 : fmts[0];
+ for (int64_t f : fmts) {
+ if (f == GL_SRGB8_ALPHA8) { chosen = f; break; }
+ if (f == GL_RGBA8) { chosen = f; }
+ }
+ LOGI("Quad swapchain format: 0x%llx", (unsigned long long)chosen);
+
+ XrSwapchainCreateInfo sci{XR_TYPE_SWAPCHAIN_CREATE_INFO};
+ sci.usageFlags = XR_SWAPCHAIN_USAGE_COLOR_ATTACHMENT_BIT | XR_SWAPCHAIN_USAGE_SAMPLED_BIT;
+ sci.format = chosen;
+ sci.sampleCount = 1;
+ sci.width = app.quad_w;
+ sci.height = app.quad_h;
+ sci.faceCount = 1;
+ sci.arraySize = 1;
+ sci.mipCount = 1;
+ CHK_XR(xrCreateSwapchain(app.session, &sci, &app.quad_swapchain));
+
+ uint32_t img_count = 0;
+ xrEnumerateSwapchainImages(app.quad_swapchain, 0, &img_count, nullptr);
+ app.quad_images.resize(img_count, {XR_TYPE_SWAPCHAIN_IMAGE_OPENGL_ES_KHR});
+ xrEnumerateSwapchainImages(app.quad_swapchain, img_count, &img_count,
+ reinterpret_cast(app.quad_images.data()));
+
+ // Paint all swapchain images once: dark semi-transparent panel.
+ // Phase 5 will rasterise Polish text here with stb_truetype.
+ GLuint fbo = 0;
+ glGenFramebuffers(1, &fbo);
+ for (const auto& img : app.quad_images) {
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+ glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+ GL_TEXTURE_2D, img.image, 0);
+ glViewport(0, 0, (GLsizei)app.quad_w, (GLsizei)app.quad_h);
+ // Navy panel: R=0.05 G=0.05 B=0.18 A=0.88 — visible on passthrough, not blinding
+ glClearColor(0.05f, 0.05f, 0.18f, 0.88f);
+ glClear(GL_COLOR_BUFFER_BIT);
+ }
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
+ glDeleteFramebuffers(1, &fbo);
+
+ LOGI("Quad swapchain OK: %ux%u, %u images", app.quad_w, app.quad_h, img_count);
+ return true;
+}
+
+static bool openxr_init(App& app) {
+ if (!app.egl.init()) return false;
+ if (!create_instance(app)) return false;
+ load_ext_fns(app.instance);
+ if (!get_system(app)) return false;
+ if (!create_session(app)) return false;
+ if (!init_passthrough(app)) return false;
+ if (!create_quad_swapchain(app)) return false;
+ return true;
+}
+
+// ── Frame loop ────────────────────────────────────────────────────────────────
+
+static void render_frame(App& app) {
+ XrFrameWaitInfo fwi{XR_TYPE_FRAME_WAIT_INFO};
+ XrFrameState fs {XR_TYPE_FRAME_STATE};
+ if (XR_FAILED(xrWaitFrame(app.session, &fwi, &fs))) return;
+
+ XrFrameBeginInfo fbi{XR_TYPE_FRAME_BEGIN_INFO};
+ if (XR_FAILED(xrBeginFrame(app.session, &fbi))) return;
+
+ std::vector layers;
+
+ // ── Layer 0: passthrough (world background) ───────────────────────────────
+ XrCompositionLayerPassthroughFB pt_layer{XR_TYPE_COMPOSITION_LAYER_PASSTHROUGH_FB};
+ if (app.has_passthrough) {
+ pt_layer.flags = 0;
+ pt_layer.space = XR_NULL_HANDLE; // required by spec
+ pt_layer.layerHandle = app.passthrough_layer;
+ layers.push_back(reinterpret_cast(&pt_layer));
+ }
+
+ // ── Layer 1: quad panel ────────────────────────────────────────────────────
+ XrCompositionLayerQuad quad_layer{XR_TYPE_COMPOSITION_LAYER_QUAD};
+ if (fs.shouldRender) {
+ XrSwapchainImageAcquireInfo ai{XR_TYPE_SWAPCHAIN_IMAGE_ACQUIRE_INFO};
+ uint32_t idx = 0;
+ xrAcquireSwapchainImage(app.quad_swapchain, &ai, &idx);
+
+ XrSwapchainImageWaitInfo wi{XR_TYPE_SWAPCHAIN_IMAGE_WAIT_INFO};
+ wi.timeout = XR_INFINITE_DURATION;
+ xrWaitSwapchainImage(app.quad_swapchain, &wi);
+
+ // Content is static (painted at init).
+ // Phase 5: re-render text here when polecenie changes.
+
+ XrSwapchainImageReleaseInfo ri{XR_TYPE_SWAPCHAIN_IMAGE_RELEASE_INFO};
+ xrReleaseSwapchainImage(app.quad_swapchain, &ri);
+
+ // Panel position: centred, 1 m in front, 25 cm below eye level
+ XrPosef pose{};
+ pose.orientation = {0.f, 0.f, 0.f, 1.f}; // identity — faces the user
+ pose.position = {0.f, -0.25f, -1.0f}; // x=0, y=-25cm, z=-1m
+
+ quad_layer.layerFlags = XR_COMPOSITION_LAYER_BLEND_TEXTURE_SOURCE_ALPHA_BIT;
+ quad_layer.space = app.ref_space;
+ quad_layer.eyeVisibility = XR_EYE_VISIBILITY_BOTH;
+ quad_layer.subImage.swapchain = app.quad_swapchain;
+ quad_layer.subImage.imageRect.offset = {0, 0};
+ quad_layer.subImage.imageRect.extent = {(int32_t)app.quad_w, (int32_t)app.quad_h};
+ quad_layer.subImage.imageArrayIndex = 0;
+ quad_layer.pose = pose;
+ quad_layer.size = {0.80f, 0.40f}; // 80 cm × 40 cm
+
+ layers.push_back(reinterpret_cast(&quad_layer));
+ }
+
+ XrFrameEndInfo fei{XR_TYPE_FRAME_END_INFO};
+ fei.displayTime = fs.predictedDisplayTime;
+ // OPAQUE + passthrough layer = real world visible through FB_passthrough
+ fei.environmentBlendMode = XR_ENVIRONMENT_BLEND_MODE_OPAQUE;
+ fei.layerCount = static_cast(layers.size());
+ fei.layers = layers.empty() ? nullptr : layers.data();
+ xrEndFrame(app.session, &fei);
+}
+
+// ── Event handling ────────────────────────────────────────────────────────────
+
+static void poll_xr_events(App& app) {
+ XrEventDataBuffer ev{XR_TYPE_EVENT_DATA_BUFFER};
+
+ while (xrPollEvent(app.instance, &ev) == XR_SUCCESS) {
+ switch (ev.type) {
+ case XR_TYPE_EVENT_DATA_SESSION_STATE_CHANGED: {
+ const auto* e = reinterpret_cast(&ev);
+ app.session_state = e->state;
+ LOGI("Session state → %d", (int)app.session_state);
+
+ switch (e->state) {
+ case XR_SESSION_STATE_READY: {
+ XrSessionBeginInfo sbi{XR_TYPE_SESSION_BEGIN_INFO};
+ sbi.primaryViewConfigurationType =
+ XR_VIEW_CONFIGURATION_TYPE_PRIMARY_STEREO;
+ if (XR_SUCCEEDED(xrBeginSession(app.session, &sbi))) {
+ app.session_running = true;
+ LOGI("Session started");
+ }
+ break;
+ }
+ case XR_SESSION_STATE_STOPPING:
+ xrEndSession(app.session);
+ app.session_running = false;
+ break;
+ case XR_SESSION_STATE_EXITING:
+ case XR_SESSION_STATE_LOSS_PENDING:
+ app.exit_requested = true;
+ break;
+ default:
+ break;
+ }
+ break;
+ }
+ case XR_TYPE_EVENT_DATA_INSTANCE_LOSS_PENDING:
+ app.exit_requested = true;
+ break;
+ default:
+ break;
+ }
+ ev = {XR_TYPE_EVENT_DATA_BUFFER};
+ }
+}
+
+// ── Android lifecycle ─────────────────────────────────────────────────────────
+
+static void on_app_cmd(android_app* a, int32_t cmd) {
+ (void)a; (void)cmd;
+ // NativeActivity lifecycle: OpenXR session state machine drives rendering.
+}
+
+// ── Entry point ───────────────────────────────────────────────────────────────
+
+void android_main(android_app* state) {
+ LOGI("=== ipin-vr-poc phase 1 start ===");
+
+ g_app.native_app = state;
+ state->userData = &g_app;
+ state->onAppCmd = on_app_cmd;
+
+ if (!openxr_init(g_app)) {
+ LOGE("OpenXR init failed — aborting");
+ return;
+ }
+
+ LOGI("Entering main loop");
+ while (!g_app.exit_requested) {
+ // Drain Android event queue (0 = non-blocking poll)
+ int events = 0;
+ android_poll_source* src = nullptr;
+ while (ALooper_pollAll(0, nullptr, &events,
+ reinterpret_cast(&src)) >= 0) {
+ if (src) src->process(state, src);
+ if (state->destroyRequested) {
+ g_app.exit_requested = true;
+ break;
+ }
+ }
+
+ poll_xr_events(g_app);
+
+ const bool can_render =
+ g_app.session_running &&
+ (g_app.session_state == XR_SESSION_STATE_VISIBLE ||
+ g_app.session_state == XR_SESSION_STATE_FOCUSED);
+
+ if (can_render) render_frame(g_app);
+ }
+
+ LOGI("Shutting down");
+ if (g_app.passthrough_layer != XR_NULL_HANDLE)
+ pfn_xrDestroyPassthroughLayerFB(g_app.passthrough_layer);
+ if (g_app.passthrough != XR_NULL_HANDLE)
+ pfn_xrDestroyPassthroughFB(g_app.passthrough);
+ if (g_app.quad_swapchain != XR_NULL_HANDLE)
+ xrDestroySwapchain(g_app.quad_swapchain);
+ if (g_app.ref_space != XR_NULL_HANDLE)
+ xrDestroySpace(g_app.ref_space);
+ if (g_app.session != XR_NULL_HANDLE)
+ xrDestroySession(g_app.session);
+ if (g_app.instance != XR_NULL_HANDLE)
+ xrDestroyInstance(g_app.instance);
+ g_app.egl.destroy();
+ LOGI("=== ipin-vr-poc phase 1 exit ===");
+}
diff --git a/vr-poc/app/src/main/res/values/strings.xml b/vr-poc/app/src/main/res/values/strings.xml
new file mode 100644
index 0000000..e9b4aae
--- /dev/null
+++ b/vr-poc/app/src/main/res/values/strings.xml
@@ -0,0 +1,4 @@
+
+
+ ipin-vr poc
+
diff --git a/vr-poc/build.gradle b/vr-poc/build.gradle
new file mode 100644
index 0000000..5b7ccba
--- /dev/null
+++ b/vr-poc/build.gradle
@@ -0,0 +1,3 @@
+plugins {
+ id 'com.android.application' version '8.7.3' apply false
+}
diff --git a/vr-poc/gradle/wrapper/gradle-wrapper.jar b/vr-poc/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..e644113
Binary files /dev/null and b/vr-poc/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/vr-poc/gradle/wrapper/gradle-wrapper.properties b/vr-poc/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..cea7a79
--- /dev/null
+++ b/vr-poc/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.12-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/vr-poc/gradlew b/vr-poc/gradlew
new file mode 100755
index 0000000..1aa94a4
--- /dev/null
+++ b/vr-poc/gradlew
@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+# Gradle start up script for POSIX generated by Gradle.
+#
+# Important for running:
+#
+# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+# noncompliant, but you have some other compliant shell such as ksh or
+# bash, then to run this script, type that shell name before the whole
+# command line, like:
+#
+# ksh Gradle
+#
+# Busybox and similar reduced shells will NOT work, because this script
+# requires all of these POSIX shell features:
+# * functions;
+# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+# * compound commands having a testable exit status, especially «case»;
+# * various built-in commands including «command», «set», and «ulimit».
+#
+# Important for patching:
+#
+# (2) This script targets any POSIX shell, so it avoids extensions provided
+# by Bash, Ksh, etc; in particular arrays are avoided.
+#
+# The "traditional" practice of packing multiple parameters into a
+# space-separated string is a well documented source of bugs and security
+# problems, so this is (mostly) avoided, by progressively accumulating
+# options in "$@", and eventually passing that to Java.
+#
+# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+# see the in-line comments for details.
+#
+# There are tweaks for specific operating systems such as AIX, CygWin,
+# Darwin, MinGW, and NonStop.
+#
+# (3) This script is generated from the Groovy template
+# https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+# within the Gradle project.
+#
+# You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+ APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
+ [ -h "$app_path" ]
+do
+ ls=$( ls -ld "$app_path" )
+ link=${ls#*' -> '}
+ case $link in #(
+ /*) app_path=$link ;; #(
+ *) app_path=$APP_HOME$link ;;
+ esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+ echo "$*"
+} >&2
+
+die () {
+ echo
+ echo "$*"
+ echo
+ exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in #(
+ CYGWIN* ) cygwin=true ;; #(
+ Darwin* ) darwin=true ;; #(
+ MSYS* | MINGW* ) msys=true ;; #(
+ NONSTOP* ) nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD=$JAVA_HOME/jre/sh/java
+ else
+ JAVACMD=$JAVA_HOME/bin/java
+ fi
+ if [ ! -x "$JAVACMD" ] ; then
+ die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD=java
+ if ! command -v java >/dev/null 2>&1
+ then
+ die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+ case $MAX_FD in #(
+ max*)
+ # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC2039,SC3045
+ MAX_FD=$( ulimit -H -n ) ||
+ warn "Could not query maximum file descriptor limit"
+ esac
+ case $MAX_FD in #(
+ '' | soft) :;; #(
+ *)
+ # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC2039,SC3045
+ ulimit -n "$MAX_FD" ||
+ warn "Could not set maximum file descriptor limit to $MAX_FD"
+ esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+# * args from the command line
+# * the main class name
+# * -classpath
+# * -D...appname settings
+# * --module-path (only if needed)
+# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+ APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+ CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+ JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ for arg do
+ if
+ case $arg in #(
+ -*) false ;; # don't mess with options #(
+ /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
+ [ -e "$t" ] ;; #(
+ *) false ;;
+ esac
+ then
+ arg=$( cygpath --path --ignore --mixed "$arg" )
+ fi
+ # Roll the args list around exactly as many times as the number of
+ # args, so each arg winds up back in the position where it started, but
+ # possibly modified.
+ #
+ # NB: a `for` loop captures its iteration list before it begins, so
+ # changing the positional parameters here affects neither the number of
+ # iterations, nor the values presented in `arg`.
+ shift # remove old arg
+ set -- "$@" "$arg" # push replacement arg
+ done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+# * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+# and any embedded shellness will be escaped.
+# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+# treated as '${Hostname}' itself on the command line.
+
+set -- \
+ "-Dorg.gradle.appname=$APP_BASE_NAME" \
+ -classpath "$CLASSPATH" \
+ org.gradle.wrapper.GradleWrapperMain \
+ "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+ die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+# set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+ printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+ xargs -n1 |
+ sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+ tr '\n' ' '
+ )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/vr-poc/gradlew.bat b/vr-poc/gradlew.bat
new file mode 100644
index 0000000..25da30d
--- /dev/null
+++ b/vr-poc/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/vr-poc/libs/arm64-v8a/.gitkeep b/vr-poc/libs/arm64-v8a/.gitkeep
new file mode 100644
index 0000000..e69c48c
--- /dev/null
+++ b/vr-poc/libs/arm64-v8a/.gitkeep
@@ -0,0 +1,2 @@
+# Tu wrzuć libopenxr_loader.so z Meta OpenXR Mobile SDK
+# Szczegóły: vr-poc/README.md §"Wymagane pliki SDK"
diff --git a/vr-poc/local.properties.template b/vr-poc/local.properties.template
new file mode 100644
index 0000000..f9ad705
--- /dev/null
+++ b/vr-poc/local.properties.template
@@ -0,0 +1,3 @@
+# Skopiuj do local.properties (nie trafia do git)
+sdk.dir=/home/oskar/Android/Sdk
+# ndk.dir jest opcjonalne gdy ndkVersion jest w build.gradle
diff --git a/vr-poc/ovr_sdk/OpenXR/Include/openxr/.gitkeep b/vr-poc/ovr_sdk/OpenXR/Include/openxr/.gitkeep
new file mode 100644
index 0000000..5b2d732
--- /dev/null
+++ b/vr-poc/ovr_sdk/OpenXR/Include/openxr/.gitkeep
@@ -0,0 +1,3 @@
+# Tu wrzuć headery z Meta OpenXR Mobile SDK:
+# openxr.h openxr_platform.h openxr_reflection.h openxr_platform_defines.h
+# Szczegóły: vr-poc/README.md §"Wymagane pliki SDK"
diff --git a/vr-poc/ovr_sdk/OpenXR/Libs/Android/arm64-v8a/.gitkeep b/vr-poc/ovr_sdk/OpenXR/Libs/Android/arm64-v8a/.gitkeep
new file mode 100644
index 0000000..96b29cd
--- /dev/null
+++ b/vr-poc/ovr_sdk/OpenXR/Libs/Android/arm64-v8a/.gitkeep
@@ -0,0 +1,3 @@
+# Tu wrzuć libopenxr_loader.so (Release)
+# Ale prościej: skopiuj do vr-poc/libs/arm64-v8a/ — jeden plik, jedno miejsce.
+# Szczegóły: vr-poc/README.md §"Wymagane pliki SDK"
diff --git a/vr-poc/settings.gradle b/vr-poc/settings.gradle
new file mode 100644
index 0000000..9b0809a
--- /dev/null
+++ b/vr-poc/settings.gradle
@@ -0,0 +1,16 @@
+pluginManagement {
+ repositories {
+ google()
+ mavenCentral()
+ gradlePluginPortal()
+ }
+}
+dependencyResolutionManagement {
+ repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+ repositories {
+ google()
+ mavenCentral()
+ }
+}
+rootProject.name = "ipin-vr-poc"
+include ':app'