Texturized RayCasting Graphics engine. This is like my other ray caster but this one scales textures (Bitmaps) on to the walls at a fair speed. And with total Accuracy.
This is a PPT file, which describes the RayCasting algorithm in detail. For different data, it gives different optimizing methods. In the RayCasting, there are Image-based and Object-based. Usually, we can use Early Exit / Empty Skipping / Adaptive