Migrate to slnx

[0x5bfa]

Ran the commands as follows:

Migrate to slnx files

Get-ChildItem -Recurse -Filter *.sln |
    ForEach-Object {
        dotnet sln $_.FullName migrate
    }

Delete the sln files

Get-ChildItem -Recurse -Filter *.sln | Remove-Item

[GameDreamByHuo]

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[Copilot]

Pull request overview

This PR migrates Visual Studio solution files across the repo from legacy .sln format to the newer XML-based .slnx format, then removes the old .sln files.

Changes:

• Added .slnx solution files for tools, samples, technique demos, and MiniEngine projects.
• Removed corresponding .sln files throughout the repo.
• Preserved solution structure details where applicable (folders, solution items, build dependencies/mappings).

Reviewed changes

Copilot reviewed 60 out of 60 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
Tools/DXGIAdapterRemovalSupportTest/src/DXGIAdapterRemovalSupportTest.slnx	New .slnx solution for the tool.
Tools/DXGIAdapterRemovalSupportTest/src/DXGIAdapterRemovalSupportTest.sln	Removed legacy .sln.
TechniqueDemos/D3D12MemoryManagement/src/D3D12MemoryManagement.slnx	New .slnx solution for the technique demo.
TechniqueDemos/D3D12MemoryManagement/src/D3D12MemoryManagement.sln	Removed legacy .sln.
Samples/Desktop/D3D12xGPU/src/D3D12xGPU.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12xGPU/src/D3D12xGPU.sln	Removed legacy .sln.
Samples/Desktop/D3D12VariableRateShading/src/D3D12VariableRateShading.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12VariableRateShading/src/D3D12VariableRateShading.sln	Removed legacy .sln.
Samples/Desktop/D3D12StateObjectDatabase/src/D3D12StateObjectDatabase Sample.slnx	New .slnx solution for the sample (x64/x86).
Samples/Desktop/D3D12StateObjectDatabase/src/D3D12StateObjectDatabase Sample.sln	Removed legacy .sln.
Samples/Desktop/D3D12SmallResources/src/D3D12SmallResources.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12SmallResources/src/D3D12SmallResources.sln	Removed legacy .sln.
Samples/Desktop/D3D12SM6WaveIntrinsics/src/D3D12SM6WaveIntrinsics.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12SM6WaveIntrinsics/src/D3D12SM6WaveIntrinsics.sln	Removed legacy .sln.
Samples/Desktop/D3D12Residency/src/D3D12Residency.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12Residency/src/D3D12Residency.sln	Removed legacy .sln.
Samples/Desktop/D3D12ReservedResources/src/D3D12ReservedResources.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12ReservedResources/src/D3D12ReservedResources.sln	Removed legacy .sln.
Samples/Desktop/D3D12Raytracing/src/D3D12Raytracing.slnx	New .slnx solution preserving folders, solution items, and build-type overrides.
Samples/Desktop/D3D12Raytracing/src/D3D12Raytracing.sln	Removed legacy .sln.
Samples/Desktop/D3D12PredicationQueries/src/D3D12PredicationQueries.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12PredicationQueries/src/D3D12PredicationQueries.sln	Removed legacy .sln.
Samples/Desktop/D3D12PipelineStateCache/src/D3D12PipelineStateCache.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12PipelineStateCache/src/D3D12PipelineStateCache.sln	Removed legacy .sln.
Samples/Desktop/D3D12On7/src/D3D12On7.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12On7/src/D3D12On7.sln	Removed legacy .sln.
Samples/Desktop/D3D12nBodyGravity/src/D3D12nBodyGravity.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12nBodyGravity/src/D3D12nBodyGravity.sln	Removed legacy .sln.
Samples/Desktop/D3D12Multithreading/src/D3D12Multithreading.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12Multithreading/src/D3D12Multithreading.sln	Removed legacy .sln.
Samples/Desktop/D3D12MeshShaders/src/D3D12MeshShaders.slnx	New .slnx solution preserving project dependency (WavefrontConverter -> MeshletGenerator).
Samples/Desktop/D3D12MeshShaders/src/D3D12MeshShaders.sln	Removed legacy .sln.
Samples/Desktop/D3D12LinkedGpus/src/D3D12LinkedGpus.slnx	New .slnx solution preserving project dependency (LinkedGpusAffinity -> AffinityLayer).
Samples/Desktop/D3D12LinkedGpus/src/D3D12LinkedGpus.sln	Removed legacy .sln.
Samples/Desktop/D3D12HeterogeneousMultiadapter/src/D3D12HeterogeneousMultiadapter.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12HeterogeneousMultiadapter/src/D3D12HeterogeneousMultiadapter.sln	Removed legacy .sln.
Samples/Desktop/D3D12HelloWorld/src/D3D12HelloWorld.slnx	New .slnx solution aggregating multiple “Hello*” projects.
Samples/Desktop/D3D12HelloWorld/src/D3D12HelloWorld.sln	Removed legacy .sln.
Samples/Desktop/D3D12HDR/src/D3D12HDR.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12HDR/src/D3D12HDR.sln	Removed legacy .sln.
Samples/Desktop/D3D12Fullscreen/src/D3D12Fullscreen.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12Fullscreen/src/D3D12Fullscreen.sln	Removed legacy .sln.
Samples/Desktop/D3D12ExecuteIndirect/src/D3D12ExecuteIndirect.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12ExecuteIndirect/src/D3D12ExecuteIndirect.sln	Removed legacy .sln.
Samples/Desktop/D3D12DynamicIndexing/src/D3D12DynamicIndexing.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12DynamicIndexing/src/D3D12DynamicIndexing.sln	Removed legacy .sln.
Samples/Desktop/D3D12DepthBoundsTest/src/D3D12DepthBoundsTest.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12DepthBoundsTest/src/D3D12DepthBoundsTest.sln	Removed legacy .sln.
Samples/Desktop/D3D12Bundles/src/D3D12Bundles.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D12Bundles/src/D3D12Bundles.sln	Removed legacy .sln.
Samples/Desktop/D3D1211On12/src/D3D1211On12.slnx	New .slnx solution for the sample.
Samples/Desktop/D3D1211On12/src/D3D1211On12.sln	Removed legacy .sln.
MiniEngine/Tools/SDFFontCreator/SDFFontCreator_VS15.slnx	New .slnx solution for SDFFontCreator with Windows->x64 mapping.
MiniEngine/Tools/SDFFontCreator/SDFFontCreator_VS15.sln	Removed legacy .sln.
MiniEngine/Tools/Scripts/ProjectTemplates/AppTemplate.slnx	New .slnx solution template for generated MiniEngine apps.
MiniEngine/Tools/Scripts/ProjectTemplates/AppTemplate.sln	Removed legacy .sln template.
MiniEngine/ModelViewer/ModelViewer.slnx	New .slnx solution for MiniEngine ModelViewer with Windows->x64 mapping.
MiniEngine/ModelViewer/ModelViewer.sln	Removed legacy .sln.
MiniEngine/ModelConverter/ModelConverter.slnx	New .slnx solution for MiniEngine ModelConverter.
MiniEngine/ModelConverter/ModelConverter.sln	Removed legacy .sln.

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[jenatali]

But, why? I get that slnx is cleaner, but it also means these solutions no longer open in older VS versions. Is there other value to be gained?

[0x5bfa]

SLNX support is from VS 2022 17.14. 2017 & 2019 are already EOL, so it's a quite normal move given that it simplifies the solution configuration and PR diff when any changes are made.

If anyone wants to build a project, they still can by opening a vcxproj directly since most of the vcxproj files set the VS version to 15.0.

[walbourn]

VS 2022 17.12 is still in lifecycle, but by August 17.14 will be the only one in lifecycle.