Содержание

UVAtlas

Create a UV atlas for a mesh, which is then followed by a call to UVAtlasPack.

HRESULT UVAtlasPartition(
    const XMFLOAT3* positions, size_t nVerts,
    const void* indices, DXGI_FORMAT indexFormat, size_t nFaces,
    size_t maxChartNumber, float maxStretch,
    const uint32_t *adjacency, const uint32_t *falseEdgeAdjacency,
    const float *pIMTArray,
    std::function<HRESULT(float percentComplete)> statusCallBack,
    float callbackFrequency,
    UVATLAS options,
    std::vector<UVAtlasVertex>& vMeshOutVertexBuffer,
    std::vector<uint8_t>& vMeshOutIndexBuffer,
    std::vector<uint32_t>* pvFacePartitioning,
    std::vector<uint32_t>* pvVertexRemapArray,
    std::vector<uint32_t>& vPartitionResultAdjacency,
    float *maxStretchOut = nullptr, size_t *numChartsOut = nullptr);

Parameters

See UVAtlasCreate which details the majority of the parameters to this function.

vPartitionResultAdjacency: Contains three values per face. This is used as input to the UVAtlasPack.

Remarks

UVAtlas can partition mesh geometry two ways:

Based on the number of charts
Based on the maximum allowed stretch. If the maximum allowed stretch is 0, each triangle will likely be in its own chart

For Use

Universal Windows Platform apps
Windows desktop apps
Windows 11
Windows 10
Windows 8.1
Windows 7 Service Pack 1
Xbox One
Xbox Series X|S
Windows Subsystem for Linux

Architecture

x86
x64
ARM64

For Development

Visual Studio 2022
Visual Studio 2019 (16.11)
clang/LLVM v12 - v18
GCC 10.5, 11.4, 12.3
MinGW 12.2, 13.2
CMake 3.20

A python wrapper of UVAtlasTool

DirectXMesh

DirectXTex

DirectXMath

Tools

Test Suite

Content Exporter

DxCapsViewer

All content and source code for this package are subject to the terms of the MIT License.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.