sync on initial weld
cache stride/offset in bytes
pass camera to views
optimise Field::read
don't collect in views/texturing
share views/chunk::voids/template/temp
culling
culling
culling
Billboard
Gizmo
Model::reset
Mesh
Cage
default Chunk::drawMode
Billboard
Billboard is Body
Body::lookTo/lookAt
View::[pre/post]draw
remove Mesh::data