36 lines
1.3 KiB
Markdown
36 lines
1.3 KiB
Markdown
Emscripten webcam pixel data test
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This is a demo program for passing image data from an HTML5 canvas object in JavaScript to an OpenGL context in a C++ program. It can be useful, for example, for developing cross-platform applications that use the same codebase to export both desktop and web versions, or for using C++ libraries and code to edit and display images on a web page.
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It uses the [SPACEBOX][] engine to set up an SDL + GL environment and create a model conveniently, but it can be ported to just Emscripten.
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Setup
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### Emscripten
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Install the latest Emscripten version to a directory and specify the directory in the Makefile
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### SPACE BOX
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The [SPACEBOX][] game and interactive application framework is required for setting up SDL + OpenGL. It is being used for convenience in setting up the rendering, but this technique can be used without it. Get it from https://git.nugget.fun/nugget/spacebox and specify the path to it in the Makefile.
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Compiling
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---------
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Run at the root of the directory after setting up Emscripten and SPACEBOX
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make emscripten
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Running
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-------
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Run at the root of the directory to create an HTTP server
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python -m http.server
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Browse to http://localhost:8000 to view the demo
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[SPACEBOX]: https://git.nugget.fun/nugget/spacebox
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