Don't use sensor in fft mode

lsst-sims / legacy_sims_GalSimInterface

code to seamlessly generate simulated images using GalSim based off of simulated catalogs generated by CatSim

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Don't use sensor in fft mode #78

Closed rmjarvis closed 5 years ago

rmjarvis commented 5 years ago

Jim found that bright stars that switch to FFT mode use a horrendous amount of memory and take forever. This is because they are still doing photon shooting through the silicon sensor, which defeats the whole point of switching over to FFT rendering.

This PR just turns off the sensor whenever we have decided to switch to FFT mode.