Scene Background Texture
Before starting to render (draw) a 3D frame, the window surface is filled out by the specified color or by a scene background texture . As a scene background texture any picture can be used. For the scene background texture similar rules are valid as for other textures : The dimensions should be power of 2 (otherwise they will be adjusted), the texture will be smoothed according to the preset smoothing of textures . Unlike with usual textures, fog , filling surfaces , texture stage or lighting cannot be applied for the scene background texture. A texture cannot be modulated by the scene background color. By setting a scene background color the scene background texture will get switched off. A scene background texture will be filtered (smoothed), if the scene switch of the object texture magnification filter is switched on.