I was following the workflow of the 3 phase calculation process. When reading the batch file (and then making a calculation) I realised that honeybee makes a 2 phase DDS calculation excluding all window groups, then does the 3 phase calc I’m interested in. I don’t understand the benefit of making a 2 phase calculation first as it adds time to an already long calculation time.
For example, I want to test window arrangements for a new room. So I make each possible window as a group. I have no windows as a ‘window surface’ (only window groups). Then I have to wait whilst honeybee makes the default calculation (a 2 phase calculation) of a room with no windows. A person could argue that for the default calc there will be a particular window that will never change hence it can be included in the default calc, but for most my projects I want a black canvas to start with.
What am I missing here? What is the benefit of making this 2 phase calculation when I want to make a 3 phase calculation?
Thanks for input
this is the part of the batch file I’m referring to
[1/3] scene daylight matrix
echo :: :: rfluxmtx - [sky] [points] [wgroup] [blacked wgroups] [scene] ^> [dc.mtx]