use of lighting in three-dimensional rendering

An object's surfaces are in areas within its outline. Besides the interaction among things and the geometry of object outlines discussed, the texture and shading of the surfaces of an object also provide important cues for three-dimensional perception. Among the critical aspects of three-dimensional perception of surfaces is how they connect with light. We are all accustomed to watching objects lit from overhead by the sun and thus easily interpret the three-dimensionality of things lit from overhead by a single light source. In any event, light from multiple light sources or from directions beyond just above can also convey three-dimensionality if done consistently. For further information on VR, please see 360 Degree Pix .

An object's inner edges can signal three-dimensional orientation and spin. When inter-edge distances are narrowing, then this means that these surfaces are seen at an increasing-acute angle and "fading into the distance". When the distances between inner edges are expanding, then this means that these surfaces are moving closer to a right angle view and "moving closer". Thus, an object with inner edges narrowing on one side and growing on the other side seems to spin three dimensionally. First generation volumetric graphics employed such methods to create "transparent outline" figures that seemed to spin in three dimensions. Three-dimensional rendering systems are much more high-performance now, but the shape of object edges remains core to detail sensation. The site Virtual Tours San Bernardino, California also provides some information.

Further, Virtual Reality provides information on this.