atmospheres: integrated flux is a function of number of triangles

[gecheline]

When using atmosphere tables instead of blackbody, the observed integrated flux never seems to converge but keeps increasing with number of triangles.

[horvatm]

Can you give a plot how it increases. If numerics is done correctly, the convergence should be O(N^{-a}), with a > 1/2. In a very disordered situations a could as small as a=1/2, but usually should be a>=1.