I think they meant rasterization as in http://www.scratchapixel.com/lessons/3d-basic-rendering/rasterization-practical-implementation http://www.scratchapixel.c

I think they meant rasterization as in http://www.scratchapixel.com/lessons/3d-basic-rendering/rasterization-practical-implementation http://www.scratchapixel.com/lessons/3d-basic-rendering/rast... instead of in the context of browsers...it's not a very precise term