PackVertexToPoints()

bool Spices::MeshProcessor::PackVertexToPoints ( MeshPack * meshPack, const std::vector< glm::uvec3 > & primVertices, std::vector< glm::vec3 > & points )

staticprivate

Pack Vertices to Points.

Parameters

[in]	meshPack	MeshPack.
[in]	primVertices	.
[in,out]	points	.

Returns

Returns true if succeed.

Definition at line 707 of file MeshProcessor.cpp.

    {
        SPICES_PROFILE_ZONE;
 
        std::unordered_map<uint32_t, bool> pointsMap;
 
        auto& positions = *meshPack->m_MeshResource.positions.attributes;
        auto& vertices  = *meshPack->m_MeshResource.vertices .attributes;
        for (auto& primVertex : primVertices)
        {
            const glm::uvec4& vertex0 = vertices[primVertex.x];
            const glm::uvec4& vertex1 = vertices[primVertex.y];
            const glm::uvec4& vertex2 = vertices[primVertex.z];
 
            pointsMap[vertex0.x] = true;
            pointsMap[vertex1.x] = true;
            pointsMap[vertex2.x] = true;
        }
 
        points.resize(pointsMap.size());
        uint32_t i = 0;
        for (auto& [pt, ignore] : pointsMap)
        {
            points[i] = positions[pt];
            ++i;
        }
 
        return true;
    }