highlight.hpp

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// SPDX-FileCopyrightText: 2026 Povl Filip Sonne-Frederiksen
//
// SPDX-License-Identifier: GPL-3.0-or-later
 
#pragma once
 
// Instance highlight colouring for evidence renders (Kortlægning, #265 Phase
// 2 Task 8): paint one instance's points in a fixed accent colour and dim
// every other point, so a plan/orbit/front render can call out a single
// element the way the frontend's instance picker does.
 
#include <array>
#include <cstddef>
#include <cstdint>
#include <vector>
 
namespace reusex::visualize {

inline constexpr std::array<unsigned char, 3> kHighlightRgb{255, 176, 64};

inline constexpr double kHighlightDimFactor = 0.3;

std::size_t apply_instance_highlight(std::vector<unsigned char> &rgb,
                                     const std::vector<std::uint32_t> &labels,
                                     std::uint32_t instance_id);
 
} // namespace reusex::visualize