(+) Season have wrong definition for South hemisphere
Until version 4.2.7 seasons were always defined from a Northern hemisphere point of view.
Version 4.2.7 introduces a quick fix for that with the possibility to define the right beginning and ending dates for seasons :
- Go into the plugins installation directory, namely "C:\Users\USERNAME\AppData\Roaming\SketchUp\SketchUp 2017\SketchUp\Plugins".
- In the directory DL_daylightautonomy, you'll find dl_da.ini file
- In the directory DL_sunexposure, you'll find dl_se.ini file
- Open these files one by one
- Replace the string "fixed_period.json" by "fixed_period_south.json" to get season definition corresponding to Southern hemisphere with summer as "22-12-2017 00:00" to "21-03-2018 00:00" etc. OR
- Replace the string "fixed_period.json" by "fixed_period_aus.json" to get season definition corresponding to Australia with summer as "01-06-2017 00:00" to "01-09-2017 00:00".
- You can also create your own json file.
In a future version we will make that much more general and nicer to modify.
(+) Can DL-Light handle large models
There is no real limit to the size of the models that DL-Light can handle except the limits of your own computers.
DL-Light has been tested with models that had more that 200,000 faces.
Only thing to know is that when DL-Light is activated for the first time on a model, it creates a unique id for each face of the model.
That process can take time and it feels like DL-Light is not launching at all.
Be a little patient, this is visible only on large models and it will happen only once.
(+) I made a simple model to test, no coloring appears
Probably your faces are wrongly oriented.
In SketchUp a face has two sides, one 'up' and one 'down' depeding on the orientation of the normal to the facade.
The down face is generally in a darker color and the up face is in a lighter color.
DL-Light will always calculated on the 'up' face that is supposed to receive the natural light.
If you get no result, just invert the face by right-clicking on the face and choose "Invert faces" in the menu.
DL-Light uses the well-know simulation platform Radiance for all its simulations.
Radiance has been extensively validated by many independant teams over the years and it is widely recognised as the best simulation platform for its accuracy.
All modules of DL-Light are systematically validated by comparison of its results against the results obtained using 'pure' Radiance commands.
It is always a good habit to group the faces that you make in meaningful layers.
For DL-Light, it is necessary that you group your layers per material so that all the faces in a particular layer get the same material.
You can also group all your floors that you want to calculate in the same layer and use the "Select by layer" tool that you will find in the toolbar of the extension or in the menu.
This is quite a customary habit to calculate on a plane representing the workplane in office or school spaces.
In order to do that, use the special tool "Copy surfaces". That tool will make a copy of the surface (the floor in our example) at a given distance that you can set in the bottom right corner box of SketchUp.
On that special surface, you can perform calculation, however it has no material and does not interact with light.
Currently you cannot on Windows but you can on macOS.
This module is currently in integration in Windows and should be available by September 2017.
The macOS version newly released now include exposure to direct sunrays, sky biew factor and watt calculation.
It uses the new interface we are designing.
We are currently working to include the remaining modules that are available on Windows : Daylight Factor, Luminous Autonomy and BREEAM calculation.
It should be available by october 2017.
Click on the "Buy" button on the top right of your screen, it will get you to the pricing page.