MeshBuffer() [1/2]

MayaFlux::Buffers::MeshBuffer::MeshBuffer ( Kakshya::MeshData  data )

explicit

Construct from an owning MeshData.

The VKBuffer base is sized to vertex_bytes. MeshProcessor allocates the index buffer separately on on_attach.

Parameters

data	Loaded or generated mesh. Must be valid (is_valid() == true).

Definition at line 19 of file MeshBuffer.cpp.

    : VKBuffer(
          [&data]() -> size_t {
              const auto* vb = std::get_if<std::vector<uint8_t>>(
                  &data.vertex_variant);
              return vb ? vb->size() : 0;
          }(),
          Usage::VERTEX,
          Kakshya::DataModality::VERTEX_POSITIONS_3D)
    , m_mesh_data(std::move(data))
{
    if (!m_mesh_data.is_valid()) {
        MF_WARN(Journal::Component::Buffers, Journal::Context::Init,
            "MeshBuffer constructed with invalid MeshData — "
            "GPU upload will be skipped until valid data is provided");
    }
 
    RenderConfig defaults;
    defaults.vertex_shader = "triangle.vert.spv";
    defaults.topology = Portal::Graphics::PrimitiveTopology::TRIANGLE_LIST;
    set_default_render_config(defaults);
 
    set_needs_depth_attachment(true);
 
    MF_INFO(Journal::Component::Buffers, Journal::Context::Init,
        "MeshBuffer: {} vertices, {} indices ({} faces), stride {} bytes",
        m_mesh_data.vertex_count(),
        get_index_count(),
        m_mesh_data.face_count(),
        m_mesh_data.layout.stride_bytes);
}