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# Conflicts: # backends/imgui_impl_glfw.cpp # backends/imgui_impl_opengl3.cpp # backends/imgui_impl_sdl.cpp # backends/imgui_impl_win32.cpp # imgui.cpp |
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| .. | ||
| main.cpp | ||
| Makefile | ||
| README.md | ||
| shell_minimal.html | ||
How to Build
- You need to install Emscripten from https://emscripten.org/docs/getting_started/downloads.html, and have the environment variables set, as described in https://emscripten.org/docs/getting_started/downloads.html#installation-instructions
- You may also refer to our Continuous Integration setup for Emscripten setup.
- Depending on your configuration, in Windows you may need to run
emsdk/emsdk_env.batin your console to access the Emscripten command-line tools. - Then build using
makewhile in theexample_emscripten_opengl3/directory.
How to Run
To run on a local machine:
make servewill 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 can’t load extra files needed by the HTML (like a .wasm file, or packaged file data as mentioned lower down). For these browsers you’ll need to serve the files using a local webserver and then open http://localhost:8000/hello.html." - Emscripten SDK has a handy
emruncommand:emrun web/example_emscripten_opengl3.html --browser firefoxwhich 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 whatmake serveuses). - You may use Python 2 builtin webserver:
cd web && python -m SimpleHTTPServer.
- Quoting https://emscripten.org/docs/getting_started:
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=clampcompilation 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