write_path_attributes()

void MayaFlux::Nodes::GpuSync::TopologyGeneratorNode::write_path_attributes ( std::span< const LineVertex >  points, size_t  num_points  )

private

Write colour and thickness for the interpolated path.

Parameters

points	Control point source.
num_points	Control point count.

Definition at line 106 of file TopologyGeneratorNode.cpp.

{
    if (num_points < 2 || m_vertices.empty()) {
        return;
    }
 
    const size_t num_segments = num_points - 1;
    const size_t count = m_vertices.size() / 2 + 1;
    const auto span = static_cast<float>(count - 1);
 
    for (size_t i = 0; i + 1 < count; ++i) {
        const float t0 = static_cast<float>(i) / span;
        const float t1 = static_cast<float>(i + 1) / span;
 
        const auto s0 = std::min<size_t>(
            static_cast<size_t>(t0 * static_cast<float>(num_segments)), num_segments - 1);
        const auto s1 = std::min<size_t>(
            static_cast<size_t>(t1 * static_cast<float>(num_segments)), num_segments - 1);
 
        LineVertex& v0 = m_vertices[i * 2];
        LineVertex& v1 = m_vertices[i * 2 + 1];
 
        v0.color = m_force_uniform_color ? m_line_color : points[s0].color;
        v1.color = m_force_uniform_color ? m_line_color : points[s1].color;
 
        v0.thickness = m_force_uniform_thickness ? m_line_thickness : points[s0].thickness;
        v1.thickness = m_force_uniform_thickness ? m_line_thickness : points[s1].thickness;
    }
}

References MayaFlux::Kakshya::LineVertex::color, count, m_force_uniform_color, m_force_uniform_thickness, m_line_color, m_line_thickness, m_vertices, points, and MayaFlux::Kakshya::LineVertex::thickness.

Referenced by build_interpolated_path(), and refresh_attributes().

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