| 摘要 |
<p>Image data representing multi-dimensional objects is processed. The position of objects in space is calculated and lighting characteristices are calculated, in response to positional and surface data. Conventional floating point arithmetic is performed when calculating the position of polygons, particularly during transformations and projections etc. However, advantage is taken of the fact that a limitation exists in the number of bits available for representing the final 2-dimensional image. Consequently, lighting characteristics are calculated in lower accuracy fixed point airrithmetic, also known as integer arithmetic. <IMAGE></p> |
