discovered this pattern on a 14th century madrassa.在一所14世纪的伊斯兰学校中 现了这个图案。 And after some analysis, concluded that this was, in fact, Penrose tiling 500 years before ...
First one is that many meshes aren’t closed. This often happens with scanned meshes ... When tracing from texels, we need an appropriate bias based on the surface normal and ray direction to escape ...