compute_frame()

void MayaFlux::Nodes::GpuSync::PathGeneratorNode::compute_frame ( )

overridevirtual

Compute frame - generates interpolated vertices from control points.

Implements MayaFlux::Nodes::GpuSync::GpuSync.

Definition at line 546 of file PathGeneratorNode.cpp.

{
    if (m_control_points.empty() && m_draw_vertices.empty() && m_completed_draws.empty()) {
        resize_vertex_buffer(0);
        return;
    }
 
    if (m_geometry_dirty) {
        regenerate_geometry();
        m_attributes_dirty = false;
    } else if (m_attributes_dirty) {
        refresh_attributes();
        m_attributes_dirty = false;
        m_vertex_data_dirty = true;
    }
 
    if (!m_vertex_data_dirty) {
        return;
    }
 
    m_combined_cache.clear();
    m_combined_cache.reserve(m_vertices.size() + m_completed_draws.size() + m_draw_vertices.size());
    m_combined_cache.insert(m_combined_cache.end(), m_vertices.begin(), m_vertices.end());
    m_combined_cache.insert(m_combined_cache.end(), m_completed_draws.begin(), m_completed_draws.end());
    m_combined_cache.insert(m_combined_cache.end(), m_draw_vertices.begin(), m_draw_vertices.end());
 
    if (m_combined_cache.empty()) {
        resize_vertex_buffer(0);
        return;
    }
 
#ifdef MAYAFLUX_PLATFORM_MACOS
    m_expand_cache = expand_lines_to_triangles(m_combined_cache);
    set_vertices<LineVertex>(std::span { m_expand_cache.data(), m_expand_cache.size() });
 
    auto layout = get_vertex_layout();
    layout->vertex_count = static_cast<uint32_t>(m_expand_cache.size());
    set_vertex_layout(*layout);
#else
    set_vertices<LineVertex>(std::span { m_combined_cache.data(), m_combined_cache.size() });
 
    auto layout = get_vertex_layout();
    layout->vertex_count = static_cast<uint32_t>(m_combined_cache.size());
    set_vertex_layout(*layout);
#endif
 
    m_vertex_data_dirty = false;
}

References MayaFlux::Nodes::GpuSync::GeometryWriterNode::get_vertex_layout(), m_attributes_dirty, m_combined_cache, m_completed_draws, m_control_points, m_draw_vertices, m_geometry_dirty, MayaFlux::Nodes::GpuSync::GeometryWriterNode::m_vertex_data_dirty, m_vertices, refresh_attributes(), regenerate_geometry(), MayaFlux::Nodes::GpuSync::GeometryWriterNode::resize_vertex_buffer(), and MayaFlux::Nodes::GpuSync::GeometryWriterNode::set_vertex_layout().

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