README.md

Dear ImGui

This is a version of Dear ImGui that can be built as a static or shared library using CMake.

• Official Dear ImGui documentation: BACKENDS.md
• Original project: ocornut/imgui

Build

Example build using CMake and Ninja:

cmake -S . -B build -G Ninja \
    -DIMGUI_BACKEND=bgfx,sdl3 \
    -DCMAKE_BUILD_TYPE=Release \
    -DIMGUI_BUILD_SHARED=OFF \
    -DCMAKE_INSTALL_PREFIX=C:/libs/imgui

cmake --build build

CMake Options

• IMGUI_BACKEND – Select the backend(s) to use. Currently supports sdl3 and bgfx.

  • The bgfx backend is a custom integration, adapted from:
    • sdl-bgfx-imgui-starter
    • bgfx
  • Modified to support ImGui version 1.92.5

• IMGUI_BUILD_SHARED – ON to build as a shared library, OFF for static library

Backend Dependencies

Backends require their respective libraries:

• BGFX: Build manually using bgfx.cmake
• SDL3: Build manually from SDL

These libraries are not included in this repository; build them separately as needed.

Example Project

A sample project using this library is available here:
sdl3-bgfx-imgui-examples