OPTIONAL. -1 is no filter defined. ["NEAREST", "LINEAR", "NEAREST_MIPMAP_NEAREST", "LINEAR_MIPMAP_NEAREST", "NEAREST_MIPMAP_LINEAR", "LINEAR_MIPMAP_LINEAR"]
See Implementation
OPTIONAL. -1 is no filter defined. ["NEAREST", "LINEAR", "NEAREST_MIPMAP_NEAREST", "LINEAR_MIPMAP_NEAREST", "NEAREST_MIPMAP_LINEAR", "LINEAR_MIPMAP_LINEAR"]