Page 28/36 In cases when you have a lot of same objects, especially TGLFreeForms, it is good practice to use  proxy  objects.   You   will   gain   a   lot   in   performance.   Proxy  object   refers   to  Master  object. Geometry of master object is rendered in place of the proxy object. Proxy object has its own position, direction and scale. The geometry is altered accordingly. TGLMultiProxy Multi proxy object is an advanced version of proxy object. It has more masters that are chosen according to distance from camera. This technique is used with set of objects with different number of polygons but resembling each other. Low detail objects are displayed in distance and high detail objects are displayed close to the camera. TGLRenderPoint [TODO] TGLImposterSprite Imposters are described in  TGLStaticImposterBuilder  section. Imposter sprite is the object that is rendered in the scene. TGLOpenGLFeedback [TODO] GLScene beginner's guide, Jan Zizka, 2005