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Crashes: the render-target heap (HeapDef DynamicTextureAllocatorMem and its parent) grows with the widescreen picture, so the pause menu no longer reads a null block at 5120x2160; texture uploads keep the game's memory mapped while they copy it, so UnmapPhysicalMemory no longer pulls it away mid-copy; DLSS Frame Generation no longer crashes in Streamline's set-up (physical devices and the window surface go through its proxies, its swapchain images are counted first, resources are tagged per frame); a stale core-wait target is cleared before its thread is freed. Freezes and races: a resize during a swapchain rebuild is kept, a failed frame generation swapchain is retried instead of replaced by a plain one, three acquire timeouts in a row rebuild the swapchain, device waits take the queue lock, a translator child that stops answering times out, an in-flight compute pipeline builds at normal priority, a save Commit started before the window closes finishes and none starts after, a settings change just before closing is saved, and a movie sample taken before a flush is dropped. HDR: Enhanced HDR extends the game's own tonemap so highlights go above the picture's white (the hue slider, which no longer applies, is gone from the menu); frame generation gets a HUD-less picture, the HDR flag and the HDR10 metadata under HDR too. Memory: ASTC textures are encoded to BC3 unless the PC has 20 GiB of VRAM and 48 GiB of RAM, as Windows charges video memory to the commit charge (a long session held 17 GiB of RGBA8 textures and 45.7 GiB of commit on a 32 GiB PC). Shaders: the translator lowers spill-mode programs with more than eight uniform register groups in a wider spill layout, and local loads and stores with a uniform-register address (36029 of the game's 36031 variants translate, 20 failed before). The launcher release ships the shader tools and AMD's FidelityFX library (make_launcher.py --ffx); windres there gets the toolchain on PATH. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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NX2navi
NX2navi is a static recompilation of The Legend of Zelda: Ocarina of Time for Nintendo Switch 2 (game version 1.1.1) into a native x86-64 application for Windows, with a Vulkan renderer (docs/architecture.md).
Important
No game files are included. You need your own legally obtained copy of the game, dumped from your own console. Instructions for obtaining those files will not be provided.
The game is built from your files on your machine, so the result contains the game. It is for your own use. Do not share it.
Status
Early development. Kokiri Forest and the areas around it play at 60 fps and above; visual bugs and crashes are still expected.
Screenshots
Report problems as issues, following CONTRIBUTING.md.
Features
- Native code, not emulation
- 60 fps by default, or a limit of 30 to 240 fps, the display's refresh rate or unlimited
- Native widescreen and ultrawide (the window's shape, 21:9 or 32:9) with the HUD, menus and movies kept 16:9
- Resolutions above the game's 1440p: 1800p, 4K, 5K or the window's own size, sharp on high-DPI displays
- Upscaling and anti-aliasing: NVIDIA DLSS (DLAA, Quality, Balanced, Performance, Ultra Performance; RTX GPUs) or AMD FSR 3.1 (Native AA and the same modes; any GPU), which render the 3D scene at the mode's share and keep the HUD sharp; or AMD FSR 1 or bilinear scaling to the window, with a sharpness setting; black bars or stretch
- Frame generation with AMD FSR 3.1 (any GPU): a generated frame between every two the game draws, with the HUD kept out of it, for about twice the frame rate on a fast display
- HDR on HDR displays: the game's own native HDR, or an enhanced HDR made from its SDR picture
- Every shader prepared when the game is built, so play does not stop to compile them
- In-game settings menu (F1, or Minus and Plus together on a gamepad) and performance overlay (F10)
- Keyboard, mouse and gamepads with remapping, Nintendo or Xbox button layout, rumble and gyro; the game follows whichever connected gamepad you press
- Stereo or 5.1 surround sound output
- Docked or handheld console mode
- Graphics cards with less than 20 GiB of video memory keep the game's textures compressed (BC3), about half the video memory at the same speed
Installing
Download NX2navi-Setup-<version>.exe from the releases and start it next to your .nup dump. The launcher it
installs finds the dump, downloads the build tools, builds the game on your PC (10 to 25 minutes, once) and starts
it; afterwards it keeps the port up to date and rebuilds only what changed (docs/launcher.md).
docs/README-BuildKit.md describes the same build by hand, docs/building.md
building from source. Settings are in the in-game menu and in nx2navi.ini (nx2navi.ini.example
lists every key). Controls: docs/controls.md.
Requirements: Windows 10 or later, an x86-64 CPU with SSE4.2 (AVX2/FMA machines get a faster build), a GPU with Vulkan
1.3, VK_EXT_external_memory_host and VK_EXT_mesh_shader.
License
This repository is private. Its additions and changes are all rights reserved (LICENSE-ADDITIONS): no part of them may be copied, published, or used to train, fine-tune or prompt AI models or AI coding tools without written permission. The base import stays under its MIT License, and third-party code keeps its own license (THIRD_PARTY_NOTICES.md). No license grants anything for Nintendo's game.
NX2navi is an independent, non-commercial fan project, not affiliated with or endorsed by Nintendo. The Legend of Zelda, Ocarina of Time and Nintendo Switch are trademarks of Nintendo.
Building from source
docs/building.md lists the toolchain and the steps. Everything the build writes stays under
build\ and generated\, which git ignores; run tools/check_content.py before a commit.
Most of the code and documentation is written by AI coding agents (Claude Code) under the maintainer's direction; the maintainer plays every build and decides what is merged. AGENTS.md holds the rules they work under.