Now let me go back and talk about some of the work which I
mentioned earlier that was done concurrently to our own.
The first was done by Kavita Bala's group at Cornell University.
Their approach, entitled "Featurebased textures" targets the exact
same problems with texture magnification that we address.
Featurebased
textures do this by embedding spline
curves into the cells of their representation. They can have an arbitrary
number of spline curves in each cell, and reconstruction involves tracing
a ray between the point
to be shaded and the color sample locations to determine if there are
spline curves in the way or not. Color samples will not be used if there
are spline curves in the way.
Since this approach involves 2D rayspline intersections and a potentially
unbounded number
of edges per cell, it might be difficult
to implement it on graphics hardware so that it can run in realtime.
Thus their approach mostly targets highend offline applications.
