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Publish a native osx-arm64 (Apple Silicon) build - #107
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…e native Apple Silicon build encodes KTX2
…e docs update-libktx.ps1 accepts osx-arm64 (KTX-Software-<v>-Darwin-arm64.pkg) and refreshes it by default with the other five RIDs, so a version bump no longer leaves the Apple Silicon library behind; the README lists its bundled libktx and the copilot instructions its release.
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This adds a native osx-arm64 (Apple Silicon) build to the release workflow, next to the existing
osx-x64one:Obj2Tiles/Properties/PublishProfiles/osx-arm64.pubxml— theosx-x64profile withRuntimeIdentifierset toosx-arm64;publish.yml— one moredotnet publish, one more zip (Obj2Tiles-OsxArm64.zip) and the zip added to the release files.Today Apple Silicon Macs run
Obj2Tiles-Osx64under Rosetta 2. I built this profile on Linux (dotnet publish -p:PublishProfile=osx-arm64.pubxml Obj2Tiles, .NET SDK 10.0.403, same as the workflow's ubuntu runner) and ran the binary on an M-series Mac (macOS, arm64): it starts without extra signing (the linker's ad-hoc signature is enough) and--versionreports1.8.0+7d83cbd. On the same 448,734-triangle textured OBJ with default settings, the native build completed the pipeline in 11 s, the Osx64 build under Rosetta in 24 s; both wrote the same structure (tileset.json,root.b3dm, LOD-0…LOD-2).We use Obj2Tiles from EMStudio (Extended Matrix, CNR-ISPC) to turn large photogrammetric meshes into 3D Tiles; many of our users are on Apple Silicon. Thank you for the tool.