No change in RAT results about rayflare

[phoebe-p]

I just ran your example. First of all, there's some small issue so as-is, the code didn't run for me - one of the methods was specified as just 'RT', which is not a valid method (it has to be 'RT_Fresnel' or 'RT_TMM'). Since the front surface has an SiN layer, it should be calculated with RT_TMM. For the rear surface, since there is just the Al transmission medium under it and no other surface layers (if I understand correctly), RT_Fresnel is fine. However, that isn't what is causing the issue you describe; this happens because currently, if you change something about the surface texture or surface layers but you don't change the name of the interface ('Texture_front' or 'Texture_back'), RayFlare will not know that it needs to recalculate anything - it simply checks if existing matrix files with that name exist in the specified save location, and if they do, it will no re-do the ray-tracing etc. and just use those saved files. Similarly, if you change the number of rays it will also not recognize this automatically so just should either change the surface name whenever you make a change, or delete the previous results files. This is something I want to change in the future, so that RayFlare will recognize when something has changed and give a warning/ask the user if they want to recalculate but it is not currently implemented!

Attached is your code, slightly modified so it calculates RAT for pyramids with either 50 or 100 nm of SiN. This gives clearly different results (also attached).

Github_RayflareVsPVL_SiN_RAT_comparison_PP.txt

[suchi-bot]

Hi! Thank you so much for your help in solving the problem.