use implement::math::mat::Mat4; use implement::math::mat::Mat3x1; use implement::render::camera; use std::collections::HashMap; use std::vec::Vec; pub struct Scene { _lights: Vec< Light >, _lightinteract: Vec< LightImteractAds >, _cams: Vec< camera::Cam >, _verts: Vec< Vert >, _vert_groups: Vec< VertGroup >, }