Hello Shapespark developers,
I want to bring it to your notice that there is a similar application like Shapespark which helps creators visualize 3D content via web browser by the name of Viz4D. It has a good render quality and the tour experience is also great.
I thought you can check it out and maybe implement some of their ideas in making Shapespark even better.
Website : https://viz4d.com
Their product isn’t yet open to the public it seems as I was not able to use that software.