set_vertex_data()

void MayaFlux::Buffers::MeshBuffer::set_vertex_data

(

std::span< const uint8_t >

bytes

)

Replace vertex bytes entirely and mark vertices dirty.

Intended for deformation: caller writes new interleaved bytes (same stride as the original layout) and the next graphics cycle re-uploads. Does not change index data or layout.

Parameters

bytes

Raw interleaved vertex bytes. Size must be a multiple of m_mesh_data.layout.stride_bytes.

Definition at line 210 of file MeshBuffer.cpp.

{
    if (m_mesh_data.layout.stride_bytes > 0
        && bytes.size() % m_mesh_data.layout.stride_bytes != 0) {
        MF_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "MeshBuffer::set_vertex_data: byte count {} not a multiple of stride {}",
            bytes.size(), m_mesh_data.layout.stride_bytes);
        return;
    }
 
    m_mesh_data.vertex_variant = std::vector<uint8_t>(bytes.begin(), bytes.end());
    m_mesh_data.layout.vertex_count = m_mesh_data.layout.stride_bytes > 0
        ? static_cast<uint32_t>(bytes.size() / m_mesh_data.layout.stride_bytes)
        : 0;
 
    m_vertices_dirty.store(true, std::memory_order_release);
}

References MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, MayaFlux::Kakshya::MeshData::layout, m_mesh_data, m_vertices_dirty, MF_ERROR, MayaFlux::Kakshya::VertexLayout::stride_bytes, MayaFlux::Kakshya::VertexLayout::vertex_count, and MayaFlux::Kakshya::MeshData::vertex_variant.