osgx::imgui

osgx/ImGui.hpp (gated behind OSGX_IMGUI, requiring Dear ImGui via pkg-config; set via the OSGX_WITH_IMGUI CMake option, which compiles it into libosgx when Dear ImGui is found) provides osgx::imgui::Widget, a self-contained Dear ImGui overlay with pluggable sections (addStatsSection(), addProfilerSection(), addTextureSection(), or a custom addSection(label, fn)), and osgx::imgui::Panel, the same section machinery for an application that already owns its own ImGui context/frame/window.

addProfilerSection() is the osgx::debug front-end — the only place osgx::imgui reaches into that subsystem; everything else (Panel, the stats/texture browsers) has nothing to do with GL_KHR_debug specifically.

See examples/osgx-imgui.cpp (self-owned context) and examples/osgx-imgui-external.cpp (app-owned context/frame/window pattern) for worked examples.