Imports github.com/go-gl/glu github.com/go-gl-legacy/gl github.com/go-gl/glfw3 github.com/go-gl/mathgl/mgl32 github.com/go-gl/mathgl/mgl64 github.com/metaleap/go-xsd-pkg/khronos.org/files/collada_schema_1_4_go Standard library imports encoding/xml fmt io/ioutil log math os runtime time