get_mesh_data()

std::optional< Kakshya::MeshData > MayaFlux::Nodes::Network::MeshNetwork::get_mesh_data

(

)

const

Every slot's geometry merged into one MeshData, one submesh per slot.

Slots with no node or no geometry are skipped. Each submesh is named for its slot, or by its index when the slot is unnamed, and its indices are offset into the shared vertex array. Vertices are in each slot's local space: no slot or world transform is applied.

Returns

The merged mesh, or nullopt when no slot has geometry.

Definition at line 236 of file MeshNetwork.cpp.

{
    auto mesh_data = Kakshya::MeshData::empty();
    Kakshya::MeshInsertion ins(mesh_data.vertex_variant, mesh_data.index_variant);
 
    for (const auto& slot : m_slots) {
        if (!slot.node) {
            continue;
        }
 
        const auto packed = slot.node->get_mesh_data();
        if (!packed) {
            continue;
        }
 
        ins.insert_submesh(
            std::get<std::vector<uint8_t>>(packed->vertex_variant),
            std::get<std::vector<uint32_t>>(packed->index_variant),
            slot.name.empty() ? std::to_string(slot.index) : slot.name,
            {},
            packed->layout);
    }
 
    const auto access = ins.build();
    if (!access) {
        return std::nullopt;
    }
    mesh_data.layout = access->layout;
    mesh_data.submeshes = access->submeshes;
 
    return mesh_data;
}

References MayaFlux::Kakshya::MeshInsertion::build(), MayaFlux::Kakshya::MeshData::empty(), MayaFlux::Kakshya::MeshInsertion::insert_submesh(), and m_slots.

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