Can I ignore the Severe non-convex DetermineShadowingCombinations warning when using PixelCounting?
I have been in love with the new GPU-based PixelCounting Shading Calculation Method that was added to EnergyPlus in version 9.3. It has brought about a Renaissance in my use of FullInteriorAndExteriorWithReflections for solar distribution.
I have noticed that using PixelCounting gets rid of the CHKBKS error noted in this issue. However, I still get the following warning when running certain types of models with PixelCounting:
** Severe ** DetermineShadowingCombinations: There are X surfaces which are casting surfaces and are non-convex
From the documentation in the EnergyPlus Input/Output reference that I linked to, it seems that using PixelCounting should eliminate the negative effects of this Severe error. So I was wondering if I can just ignore this error whenever I use PixelCounting.
If anyone wants to recreate the error that I am talking about, here is a sample IDF with PixelCounting that returns the Severe warning in the .err file:
Also, I know that @Neal Kruis contributed this amazingly-helpful PixelCounting method and I thank him greatly for it. There will be A LOT of people in the Ladybug Tools community making use of it.
Neal, if you could just confirm that this is a bug, I'll silence this severe warning on the UI end of Ladybug Tools whenever PixelCounting is used. This should lessen the number of future posts here from Ladybug Tools users about this issue.
@chriswmackey I'll look into it soon. Thanks for pointing this out!