A birdcage (or bird cage) is a cage designed to house birds as pets. Antique (or antique-style) birdcages are often popular as collectors' items or as household decor but most are not suitable for housing live birds, being too small, or of unsafe materials or construction.ood quality cages designed for pet birds are more suitable. Most parrot cages are made or wrought iron and painted with a non-toxic paint referred to as powder-coating. However, the newest trend in the market is cages made of solid stainless steel.
A viewport is a 2D rectangle that defines the size of the rendering surface onto which a 3D scene is projected.
By Mike Johnston. The viewfinder is the single most important user interface on any camera. Throughout the history of cameras, the method of aiming the camera accurately and communicating its view to the operator is what has determined and defined most different basic camera types. Yet the viewfinder is perhaps the single most fudged and botched aspect of todayâs 35mm SLRs.