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imgui/examples/example_emscripten_opengl3
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main.cpp Backends: SDL2: Remove unnecessary ImGui_ImplSDL2_NewFrame() parameter. () 2021-06-30 15:04:40 +02:00
Makefile Examples: Emscripten: Amend ba636c5. () 2021-01-11 18:46:23 +01:00
README.md Examples: Emscripten: Amend ba636c5. () 2021-01-11 18:46:23 +01:00
shell_minimal.html Rename example_emscripten/ to example_emscripten_opengl3/ () 2020-12-02 11:23:56 +01:00

How to Build

How to Run

To run on a local machine:

  • make serve will use Python3 to spawn a local webserver, you can then browse http://localhost:8000 to access your build.
  • Otherwise, generally you will need a local webserver:
    • Quoting https://emscripten.org/docs/getting_started:
      "Unfortunately several browsers (including Chrome, Safari, and Internet Explorer) do not support file:// XHR requests, and cant load extra files needed by the HTML (like a .wasm file, or packaged file data as mentioned lower down). For these browsers youll need to serve the files using a local webserver and then open http://localhost:8000/hello.html."
    • Emscripten SDK has a handy emrun command: emrun web/example_emscripten_opengl3.html --browser firefox which will spawn a temporary local webserver (in Firefox). See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
    • You may use Python 3 builtin webserver: python -m http.server -d web (this is what make serve uses).
    • You may use Python 2 builtin webserver: cd web && python -m SimpleHTTPServer.

Obsolete features:

  • Emscripten 2.0 (August 2020) obsoleted the fastcomp backend, only llvm is supported.
  • Emscripten 1.39.0 (October 2019) obsoleted the BINARYEN_TRAP_MODE=clamp compilation flag which was required with version older than 1.39.0 to avoid rendering artefacts. See #2877 for details. If you use an older version, uncomment this line in the Makefile: #EMS += -s BINARYEN_TRAP_MODE=clamp