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WIP Added Vision Pro build support #502

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WIP Added Vision Pro build support #502

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e5a785e
VisionOS will build native lib for IOS but will change XDKRoot in xco…
chrishandzlik Sep 2, 2024
ab1f635
reinterop will run for VisionOS
chrishandzlik Sep 2, 2024
288e128
vision os libs will have their CPU set to ARM64 otherwise they won't …
chrishandzlik Sep 3, 2024
a08337a
added xcode proj file existence check before adjustments
chrishandzlik Sep 3, 2024
26a4145
additional libraries will also have ARM64 CPU set for them on Vision Pro
chrishandzlik Sep 3, 2024
f5e79cf
added duplicate symbol libs workaround so they are not included in xc…
chrishandzlik Sep 3, 2024
163dbcd
visionOs will use same config as IOS
chrishandzlik Sep 3, 2024
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58 changes: 54 additions & 4 deletions Editor/CompileCesiumForUnityNative.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
using System.Text;
using System;
using System.Collections.Generic;
using System.Linq;
#if UNITY_ANDROID
using UnityEditor.Android;
#endif
Expand Down Expand Up @@ -120,6 +121,8 @@ private static string GetSharedLibraryFilename(string baseName, BuildTarget targ
return $"{baseName}.dll";
case BuildTarget.iOS:
return $"lib{baseName}.a";
case BuildTarget.VisionOS:
return $"lib{baseName}.a";
case BuildTarget.StandaloneOSX:
return $"lib{baseName}.dylib";
default:
Expand Down Expand Up @@ -168,6 +171,31 @@ private static void ConfigurePlugin(LibraryToBuild library, PluginImporter impor
UnityEngine.Debug.LogAssertion("Unsupported processor: " + library.Cpu);
importer.SetPlatformData(library.Platform, "CPU", wsaPlatform);
}
else if (library.Platform == BuildTarget.VisionOS)
{
importer.SetPlatformData(library.Platform, "CPU", "ARM64");

// TODO: WARN: this will likely cause issues, why native build generates those libs? Where are they needed?
var duplicatedSymbolsExcludeLibs = new string[] {
"libjpeg.a",
"libwebp.a"
};

var projectPath = Application.dataPath.Replace("Assets", "");
foreach (var libFilePath in Directory.EnumerateFiles(library.InstallDirectory, "*.a", SearchOption.AllDirectories))
{
if(duplicatedSymbolsExcludeLibs.Any(l => libFilePath.EndsWith(l)))
continue;

var libRelativeFilePath = libFilePath.Replace(projectPath, "");
var libPluginImporter = AssetImporter.GetAtPath(libRelativeFilePath) as PluginImporter;

if (libPluginImporter != null)
{
libPluginImporter.SetPlatformData(library.Platform, "CPU", "ARM64");
}
}
}
}

private static void OnPostprocessAllAssets(
Expand Down Expand Up @@ -349,7 +377,7 @@ public static LibraryToBuild GetLibraryToBuild(PlatformToBuild platform, Library
library.ExtraConfigureArgs.Add("-DCMAKE_ANDROID_ARCH_ABI=arm64-v8a");
}

if (platform.platformGroup == BuildTargetGroup.iOS)
if (platform.platformGroup == BuildTargetGroup.iOS || platform.platformGroup == BuildTargetGroup.VisionOS)
{
library.Toolchain = "extern/ios-toolchain.cmake";
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@Merichbier Merichbier May 27, 2025 •
edited
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We suppose that using same toolchain as iOS will work. However CMAKE_SYSTEM_NAME are not the same:
iOS vs visionOS
https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html#cross-compiling-for-ios-tvos-visionos-or-watchos

We are also trying to run Cesium for Unity on Vision OS. I'm not in the office today, but I will investigate this tomorrow.

library.ExtraConfigureArgs.Add("-GXcode");
Expand Down Expand Up @@ -407,6 +435,11 @@ private static bool IsIOS(BuildTargetGroup platformGroup, BuildTarget platform)
{
return platformGroup == BuildTargetGroup.iOS && platform == BuildTarget.iOS;
}

private static bool IsVisionOS(BuildTargetGroup platformGroup, BuildTarget platform)
{
return platformGroup == BuildTargetGroup.VisionOS && platform == BuildTarget.VisionOS;
}

private static string GetDirectoryNameForPlatform(PlatformToBuild platform)
{
Expand All @@ -419,6 +452,8 @@ private static string GetDirectoryNameForPlatform(BuildTargetGroup platformGroup
return "Editor";
else if (IsIOS(platformGroup, platform))
return "iOS";
else if (IsVisionOS(platformGroup, platform))
return "VisionOS";
// Make sure we use "WSA" and not "Metro"
else if (platformGroup == BuildTargetGroup.WSA)
return "WSA";
Expand Down Expand Up @@ -450,7 +485,7 @@ internal static void BuildNativeLibrary(LibraryToBuild library)
{
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.UseShellExecute = false;
if (library.Platform == BuildTarget.StandaloneOSX || library.Platform == BuildTarget.iOS)
if (library.Platform == BuildTarget.StandaloneOSX || library.Platform == BuildTarget.iOS || library.Platform == BuildTarget.VisionOS)
{
startInfo.FileName = File.Exists("/Applications/CMake.app/Contents/bin/cmake") ? "/Applications/CMake.app/Contents/bin/cmake" : "cmake";
}
Expand Down Expand Up @@ -483,7 +518,22 @@ internal static void BuildNativeLibrary(LibraryToBuild library)
startInfo.Arguments = string.Join(' ', args);

RunAndLog(startInfo, log, logFilename);


if (IsVisionOS(library.PlatformGroup, library.Platform))
{
var xcodeProjectPath = Path.Combine(library.BuildDirectory, "CesiumForUnityNative.xcodeproj/project.pbxproj");
if (File.Exists(xcodeProjectPath))
{
var originalXcodeContents = File.ReadAllText(xcodeProjectPath);
var xcodeContentsTargetedToXros = originalXcodeContents.Replace("SDKROOT = iphoneos;", "SDKROOT = xros;");
File.WriteAllText(xcodeProjectPath, xcodeContentsTargetedToXros);
}
else
{
UnityEngine.Debug.Log("Xcode project does not exist, unable to change target to VisionOs");
}
}

args = new List<string>()
{
"--build",
Expand All @@ -499,7 +549,7 @@ internal static void BuildNativeLibrary(LibraryToBuild library)
startInfo.Arguments = string.Join(' ', args);
RunAndLog(startInfo, log, logFilename);

if (library.Platform == BuildTarget.iOS)
if (library.Platform == BuildTarget.iOS || library.Platform == BuildTarget.VisionOS)
AssetDatabase.Refresh();
}
}
Expand Down
4 changes: 3 additions & 1 deletion Editor/ConfigureReinterop.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,8 @@ internal partial class ConfigureReinterop
public const string CppOutputPath = "../native~/Editor/generated-Android";
#elif UNITY_IOS
public const string CppOutputPath = "../native~/Editor/generated-iOS";
#elif UNITY_VISIONOS
public const string CppOutputPath = "../native~/Editor/generated-VisionOS";
#elif UNITY_WSA
public const string CppOutputPath = "../native~/Runtime/generated-WSA";
#elif UNITY_64
Expand All @@ -37,7 +39,7 @@ internal partial class ConfigureReinterop

// The name of the DLL or SO containing the C++ code.
public const string NativeLibraryName = "CesiumForUnityNative-Editor";

// Comma-separated types to treat as non-blittable, even if their fields would
// otherwise cause Reinterop to treat them as blittable.
public const string NonBlittableTypes = "Unity.Collections.LowLevel.Unsafe.AtomicSafetyHandle,Unity.Collections.NativeArray,UnityEngine.MeshData,UnityEngine.MeshDataArray";
Expand Down
6 changes: 4 additions & 2 deletions Runtime/ConfigureReinterop.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,8 @@ internal partial class ConfigureReinterop
public const string CppOutputPath = "../native~/Runtime/generated-Android";
#elif UNITY_IOS
public const string CppOutputPath = "../native~/Runtime/generated-iOS";
#elif UNITY_VISIONOS
public const string CppOutputPath = "../native~/Runtime/generated-VisionOS";
#elif UNITY_WSA
public const string CppOutputPath = "../native~/Runtime/generated-WSA";
#elif UNITY_64
Expand All @@ -45,7 +47,7 @@ internal partial class ConfigureReinterop
public const string BaseNamespace = "DotNet";

// The name of the DLL or SO containing the C++ code.
#if UNITY_IOS && !UNITY_EDITOR
#if (UNITY_IOS || UNITY_VISIONOS) && !UNITY_EDITOR
public const string NativeLibraryName = "__Internal";
#else
public const string NativeLibraryName = "CesiumForUnityNative-Runtime";
Expand Down Expand Up @@ -336,7 +338,7 @@ public void ExposeToCPP()

CesiumWebMapTileServiceRasterOverlay webMapTileServiceRasterOverlay =
go.GetComponent<CesiumWebMapTileServiceRasterOverlay>();
webMapTileServiceRasterOverlay.baseUrl = webMapTileServiceRasterOverlay.baseUrl;
webMapTileServiceRasterOverlay.baseUrl = webMapTileServiceRasterOverlay.baseUrl;
webMapTileServiceRasterOverlay.layer = webMapTileServiceRasterOverlay.layer;
webMapTileServiceRasterOverlay.style = webMapTileServiceRasterOverlay.style;
webMapTileServiceRasterOverlay.format = webMapTileServiceRasterOverlay.format;
Expand Down