Idk how long this took, with bounding boxes, but it was most likely over an hour

fixed the infinite backplane by implementing bounding box checks

High poly model, theres some issue with calculating the normals when they align locally to the z axis.

file loading issues fixed, but theres still wierd shading, idk if its from the low poly model or something else

some issue with face normals, also idk where the smaller teapot is

There was an issue with the characters from the source file messing up reading the XML

Something funky with the materials