You Gotta Try DIY Virtual Reality, Even if You Make Hideous Things

I have zero virtual-reality skills. I don’t know how to work in Unity, the graphics software engine often used to make immersive worlds. I have little sense for 3-D design. But I have a secret weapon: A-Frame, an easy-to-use language released by Mozilla last winter. Based on HTML, it lets anyone quickly type commands that place blocks, spheres, and other shapes into a 3-D scene.