Rename example_emscripten/ to example_emscripten_opengl3/ (#3632)

examples/example_emscripten_opengl3/Makefile

@@ -7,15 +7,15 @@
 # (On Windows, you may need to execute emsdk_env.bat or encmdprompt.bat ahead)
 #
 # Running `make` will produce three files:
-#  - example_emscripten.html
-#  - example_emscripten.js
-#  - example_emscripten.wasm
+#  - example_emscripten_opengl3.html
+#  - example_emscripten_opengl3.js
+#  - example_emscripten_opengl3.wasm
 #
 # All three are needed to run the demo.
 
 CC = emcc
 CXX = em++
-EXE = example_emscripten.html
+EXE = example_emscripten_opengl3.html
 IMGUI_DIR = ../..
 SOURCES = main.cpp
 SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_widgets.cpp

examples/example_emscripten_opengl3/README.md

@@ -4,14 +4,14 @@
 - 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](https://github.com/ocornut/imgui/tree/master/.github/workflows) for Emscripten setup.
 - Depending on your configuration, in Windows you may need to run `emsdk/emsdk_env.bat` in your console to access the Emscripten command-line tools.
-- Then build using `make` while in the `example_emscripten/` directory.
+- Then build using `make` while in the `example_emscripten_opengl3/` directory.
 
 ## How to Run
 
 To run on a local machine:
 - Generally you may need a local webserver. Quoting [https://emscripten.org/docs/getting_started](https://emscripten.org/docs/getting_started/Tutorial.html#generating-html):<br>
 _"Unfortunately several browsers (including Chrome, Safari, and Internet Explorer) do not support file:// [XHR](https://emscripten.org/docs/site/glossary.html#term-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](https://emscripten.org/docs/getting_started/FAQ.html#faq-local-webserver) and then open http://localhost:8000/hello.html."_
-- Emscripten SDK has a handy `emrun` command: `emrun example_emscripten.html` which will spawn a temporary local webserver. See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
+- Emscripten SDK has a handy `emrun` command: `emrun example_emscripten_opengl3.html` which will spawn a temporary local webserver. See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
 - Otherwise you may use Python builtin webserver: `python -m http.server` in Python 3 or `python -m SimpleHTTPServer` in Python 2. After doing that, you can visit http://localhost:8000/.
 
 ## Obsolete features: