Frame Studio
- Gaussian splats (PLY, SPZ v2-v4), PLY vertex colours, panorama skies
- Copy, cut, paste and duplicate for objects, splats and world items
- Walkable-area rebake moved off the UI thread; viewport one frame sooner;
refresh-locked pacing (FS_PACE=timer for the old one)
- Fixed: bundle thumbnail use-after-free crash, auto-save deleting
environments, saves into scratch copies, edits lost on non-ASCII paths,
unopenable manifests with inf/nan, bundle save data loss, opening a home
marking it changed, gizmo NaN, long paths, many malformed-file crashes
- Updater verifies sha256, journals the swap and never leaves the exe missing
Frame Home
- Seats turn you to face their way
- Draw batching (Hand Tutorials up to ~20% less GPU time), cut-out EQUAL pass,
late head-pose read before submit
- Proper queue-family hand-over to the compositor layer; layer descriptor
generations and seqlocked slots; structural SPIR-V check
- Fixed: hangs/crashes on damaged .fenv files and shaders, render-pass
validation error, sync hazard in the foveation smoothing pass, unverified
update downloads, half-done installs
Tests: tests_loco/env_share/spv_check wired into CMake (FRAME_TESTS) and CI.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VsaXGU27gsrXjDoFtyFJP9
- CI installs libdeflate-dev and CMake prefers its static library: APK homes
unpack as fast as with the headset-built programs, with no new dependency.
- build-frame-home.sh --ci fails when a headset program needs a library
beyond libc/libm/libdl/libpthread/libstdc++/libgcc_s.
- Studio's CMake requires a complete payload only in CI (or with
FRAME_HOME_REQUIRE_PAYLOAD); a developer build without one warns, leaves out
frame/, and Install on Steam Frame says the headset files are missing.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Deletes pc-streaming/ (the experimental Windows D3D11 compositor proxy that
tried to make a home SteamVR's environment on a tethered PC, with its .def,
installer .ps1/.bat and notes) and everything that pointed at its files:
- CMakeLists: the frame-home-d3d11 proxy target.
- build-studio.sh: the Windows pc/ staging and the d3d11.dll build step.
- CI: the pc-home-windows job and the Windows Studio job's download/staging
of FrameHome-PC-windows-x64.
- Studio: the Windows branch of the "This PC" installer (it ran the deleted
.ps1); the feature is now Linux-only, where it installs the Vulkan layer.
- README and docs: the Windows PC download row, the PC-streaming highlight,
and the dead Frame-Home-on-a-PC / pc-steamvr.md links.
FRAME_HOME_PC and the runtime OpenVR/Vulkan loader stay, so Frame Home still
builds for a PC; only the pc-streaming folder and its wiring are gone. The
Linux PC layer (layer/) and its install path are untouched.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The PC compositor-layer work (the Direct3D 11 proxy, its installer, its notes) now lives in pc-streaming/, clearly
separate and marked experimental, so the main project is the Steam Frame build and the fixes that help it. The PC
layer can't change the Steam Frame's home (the Steam Frame renders it on the headset), and this keeps it from
crowding the Steam Frame release while preserving it for a tethered PC headset.
The shared Windows renderer support (src/, behind #ifdef _WIN32 / FRAME_HOME_PC) stays put: it only compiles into a
PC build and never touches the Steam Frame build. Build and README references updated to the new paths.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
frame-home.exe and frame-switcher.exe were console-subsystem binaries, so a console window popped whenever SteamVR
or the panel launched them. Build them as Windows GUI apps (-mwindows; they already log to a file, never a terminal,
since stderrIsTerminal() is false on Windows), so nothing shows a console.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
On the Steam Frame a layer inside SteamVR's compositor draws the home where it would draw Aurora, so the home is the
environment itself: at boot, during game loads, behind the Steam menu, with the controllers and passthrough, and it
steps aside for a game the instant it opens. On a PC this was faked with SteamVR's home-app slot and a flat 360 photo
in the gaps, which launched and handed off like an app and showed a picture, not the live home. This does it properly
on any PC that runs SteamVR, the Frame's way:
- Windows: the compositor is Direct3D 11, so the layer is a proxy d3d11.dll beside the compositor (layer/
frame_home_layer_d3d11.cpp, built from the .def that forwards every other export to the real d3d11.dll, kept as
fh_d3d11real.dll). It wraps the compositor's device, finds Aurora's draws by their shader bytecode and draws the
home over the sky, leaving the floor and stars off; everything else passes straight through. Pure pass-through in
any process that isn't vrcompositor.
- The home's frames cross from Frame Home (Vulkan) to the compositor (D3D11): the layer owns kSlots shared textures
and hands Frame Home their NT handles over a named pipe; Frame Home imports them (VK_KHR_external_memory_win32) and
renders into them. No cross-API lock — a slot is published only once the GPU has finished it and the four rotate,
as on Linux. The shared State stays Frame Home's.
- The Environments panel runs frame-home --system and keeps it alive (one at a time, a pid file across panel
restarts), the same systemEnv path as the Frame. The installer places/removes the proxy and marks the layer with a
root/layer folder, in place of the old home-app registration and background pictures.
- Safe like the Vulkan layer: no home, or one stale over half a second, and the compositor draws Aurora as usual;
the layer turns itself off after two unhealthy compositor starts, and root/layer/off turns it off by hand.
Linux keeps its Vulkan layer (unchanged). Verified without a headset on the null driver: the proxy loads and wraps
the compositor without crashing, recognises Aurora's shaders, and the frame hand-over completes (Frame Home connects,
imports the textures, renders). The compositor only draws the environment while presenting to a headset, so the final
on-headset image is the one step the null driver can't exercise.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- src/home_platform.h: what Frame Home and the panel need from the system (paths, finding and stopping each
other, running a tool, restarting, priorities) for SteamOS, Windows and Linux PCs. On a PC the environments are
Frame Studio's My Environments; Frame Home's own files in %LOCALAPPDATA%\Frame Home (Windows).
- src/openvr_loader.cpp: a PC build finds SteamVR's own OpenVR library at run time (openvrpaths.vrpath), so it runs
on any PC with SteamVR; Vulkan through volk. CMake: FRAME_HOME_PC (default on Windows and x86-64 Linux); the Steam
Frame build is unchanged.
- Windows: Frame Home is SteamVR's home app; SteamVR's classic environment shows a 360-degree picture of the current
home from its spawn (frame-home --panorama --spawn, made by the panel when the home changes) instead of Aurora
while Frame Home starts. Linux PCs: the Steam Frame's compositor layer, as on the headset.
- frame/pc: install-frame-home-pc.ps1 (+ .bat): online through SteamVR's API or offline in its config files; the
SteamVR settings it changes are saved and restored exactly on -Uninstall (tested in a sandbox both ways).
frame-switcher --uninstall. Studio: Properties > Headset > This PC installs it from pc/ beside Studio.
- Packaging and CI: pc/ in the Windows x64 and Linux x64 Studio downloads; FrameHome-PC-windows-x64.zip.
- Thumbnails come from where Frame Home starts you (the first spawn, eyes 1.6 m up): Studio's saves and the
panel's (frame-home --snapshot --spawn).
- docs/pc-steamvr.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Frame Studio now builds for Windows (x64, x86, ARM64), Linux (x64, x86, ARM64)
and macOS (Apple Silicon, Intel):
- studio/platform.h with Win32 and POSIX implementations (dialogs through
tinyfiledialogs on Linux/macOS), a GLFW window beside the Win32 one, and a
platform-neutral frame pacer
- MoltenVK support in the renderer (portability enumeration) and bundled in
the macOS app
- 32-bit builds: large-address-aware, LZMA packing within a 32-bit address space
- unaligned file reads in the loaders go through loadUnaligned (no UB)
- scripts/build-studio.sh, studio/build_windows.bat [x64|x86|arm64],
cmake/llvm-mingw.cmake, and a GitHub Actions workflow building every target
Frame Home installs without Studio: frame/install-frame-home.{sh,ps1} and
"Install Frame Home.bat" (packaged as FrameHome-installer.zip).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
