In this demo the inner corners have been cut off to resemble what modern physical cubes meant for speedcubing actually look like. The amount can be adjusted, enter a number in the box and press Enter (must be >= 1, can be decimal, less is more). The corners that are modded are configurable as can be seen on the second cube. To see the code for this mod, do ctrl-u for page source and view the javascript code (down the page). Also click on the link for A3_florian.js (near top of page) which is a modified version of AnimCube3.js and search for function drawFlorian.