private void addRoof(int startVertex, GeometryBuffer geom, int ipos, int ppos) {
short[] index = geom.index;
float[] points = geom.points;
int len = 0;
int rings = 0;
/* get sum of points in polygon */
for (int i = ipos, n = index.length; i < n && index[i] > 0; i++) {
len += index[i];
rings++;
}
sumIndices +=
Tessellator.tessellate(
points, ppos, len, index, ipos, rings, startVertex + 1, mCurIndices[IND_ROOF]);
mCurIndices[IND_ROOF] = Inlist.last(mCurIndices[IND_ROOF]);
}
