docker run --rm --entrypoint /bin/bash -v $PWD:/work -it dockcross/web-wasm:20200416-a6b6635
cd /work/build-example
cmake \
-G Ninja \
-DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} \
-DVTK_DIR=/work/build-vtk-wasm \
/work/src/Examples/Emscripten/Cxx/MultiCone
cmake --build .