I am rendering a scene with polygons and polylines with different z-values in unsorted orders.
the polygons are rendered correctly, when they overlaps with each other the hidden surface are removed.
but the polylines are not shown correctly. for example, I have two polygons with z value -2000 and -4000,
and a polyline with z value from 0 to -6000. I have this polyline pass through the polygons. the results I expect is after some rotation, part of the polyline can be seen and part of the the polyline will be covered by polygon (polyline pass through the polygons).
but the result I got is the polygon is covering the polyline completely.
Can anybody help me?