Weird results from Solar Radiation Analysis

Hi there,

I’ve done a shading simulation of facades using lamellas for Solar Radiation Analysis. Everything was going well until I saw the results… the weird thing is that when I increase the angle of the lamellas, it was supposed to increase the shading as well and reduce the radiation. However, it’s increasing the radiation and idk why. I’m sending here the script and the .epw file. Thanks in advance :slight_smile:

shading_LB Analysis-3.0.gh (98.5 KB)
Luzern-hour.zip.zip (245.5 KB)

A screenshot would have been very helpful. I would check the normal direction of the faces to make sure the grids are generated correctly.


I think it doesn’t have to do with the orientation because each facade is in the standard directions, without any rotation. That’s why I sent the file here, because I’m supposing that it’s something within the script which I haven’t noticed or with the component.

@dmaraujo
I think the problem is about your geometry.
“If a Mesh is input, radiation analysis will be performed for each face of this mesh instead of subdividing it”

Maybe your mesh is not enough “divided”. Try using a surface instead with a grid size of 0.1

(it worked for me with your script)