add volume demo to wasm #22

	# Build WASM demos and deploy to GitHub Pages
	name: Deploy WASM Demos

	on:
	push:
	branches: ["main"]

	# Cancel in-progress deployments when a new push arrives
	concurrency:
	group: "pages"
	cancel-in-progress: true

	# Required permissions for GitHub Pages deployment
	permissions:
	contents: read
	pages: write
	id-token: write

	env:
	BUILD_TYPE: Release
	EM_VERSION: 3.1.51
	EM_CACHE_FOLDER: "emsdk-cache"

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Setup Emscripten SDK
	uses: mymindstorm/setup-emsdk@v14
	with:
	version: ${{ env.EM_VERSION }}
	actions-cache-folder: ${{ env.EM_CACHE_FOLDER }}

	- name: Verify Emscripten
	run: emcc --version

	- name: Cache CMake build
	uses: actions/cache@v4
	with:
	path: \|
	wasm/build/_deps
	key: wasm-cmake-${{ runner.os }}-${{ hashFiles('wasm/CMakeLists.txt') }}
	restore-keys: \|
	wasm-cmake-${{ runner.os }}-

	- name: Configure WASM build
	working-directory: wasm
	run: \|
	mkdir -p build
	cd build
	emcmake cmake .. -DCMAKE_BUILD_TYPE=${{ env.BUILD_TYPE }}

	- name: Build WASM demos
	working-directory: wasm/build
	run: emmake make -j$(nproc)

	- name: Setup Pages
	uses: actions/configure-pages@v4

	- name: Upload Pages artifact
	uses: actions/upload-pages-artifact@v3
	with:
	path: wasm/build

	deploy:
	needs: build
	runs-on: ubuntu-latest
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	steps:
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v4

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