write_segment_attributes()

void MayaFlux::Nodes::GpuSync::PathGeneratorNode::write_segment_attributes ( const std::vector< LineVertex > &  curve_verts, size_t  start_idx, LineVertex *  dst  ) const

private

Write colour and thickness for one window, leaving positions intact.

Parameters

curve_verts	Control point source.
start_idx	First control point of the window.
dst	Destination for vertices_per_window() vertices.

Definition at line 79 of file PathGeneratorNode.cpp.

{
    if (m_samples_per_segment < 2) {
        return;
    }
 
    const auto span = static_cast<size_t>(m_samples_per_segment - 1);
 
    for (size_t i = 0; i < span; ++i) {
        const size_t c0 = start_idx + std::min((i * 3) / span, size_t(3));
        const size_t c1 = start_idx + std::min(((i + 1) * 3) / span, size_t(3));
 
        LineVertex& v0 = dst[i * 2];
        LineVertex& v1 = dst[i * 2 + 1];
 
        v0.color = m_force_uniform_color ? m_current_color : curve_verts[c0].color;
        v1.color = m_force_uniform_color ? m_current_color : curve_verts[c1].color;
 
        v0.thickness = m_force_uniform_thickness ? m_current_thickness : curve_verts[c0].thickness;
        v1.thickness = m_force_uniform_thickness ? m_current_thickness : curve_verts[c1].thickness;
    }
}

References MayaFlux::Kakshya::LineVertex::color, dst, m_current_color, m_current_thickness, m_force_uniform_color, m_force_uniform_thickness, m_samples_per_segment, and MayaFlux::Kakshya::LineVertex::thickness.

Referenced by refresh_attributes(), and write_curve_segment().

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