Here's some good reading on robust ways to fix this without an arbitrary epsilon bump: http://www.pbr-book.org/3ed-2018/Shapes/Managing_Rounding_Error.html http

Here's some good reading on robust ways to fix this without an arbitrary epsilon bump: http://www.pbr-book.org/3ed-2018/Shapes/Managing_Rounding_Error.html http://www.pbr-book.org/3ed-2018/Shapes/Managing_Rounding_Er...