18
Extra Credit (cont.)
7. Define a “skeleton” of
connected line segments, and replace (x,y) coordinates of vertices with (u,v) offsets from
skeleton. Interpolate
the skeleton,
then use the offsets to calculate vertex positions. (draw
sketch)
8.
Implement polygon clipping.
Scissoring means not
sending pixel values to the canvas when they would be out of bounds (this is the required functionality). Full
clipping means trimming the edge of the
polygon so it fits within the screen, which can greatly reduce the time spent performing rasterization.
scissoring
clipping