Announcements
Attention for Customers without Multi-Factor Authentication or Single Sign-On - OTP Verification rolls out April 2025. Read all about it here.

Junctions between walls and floors in Daylight Autonomy analysis

Anonymous

Junctions between walls and floors in Daylight Autonomy analysis

Anonymous
Not applicable

I made a Daylight Autonomy analysis of my model and I found that in some corners light was passing (pic. 1, red baloons). I made a tryal with a complete close box (pic. 2) but light is still passing trough the joints.
(pic. 3)

What can I do? Walls are attached to the floor on top and on the base.

0 Likes
Reply
Accepted solutions (1)
651 Views
1 Reply
Reply (1)

scheerd
Alumni
Alumni
Accepted solution

Hello.

Yes, this is a recently-known behaviour with the new Rending simulation engine (Insight v4+) and the old way of laying out points from Lighting.  We will be releasing a new addin and engine improvements shortly to address it.

What's happening is that the illuminance value for a grid point gathers the effects of light on the region of the point (up to halfway to the next point) rather than just at the analysis point like other ray-tracing engines.  With low-density grids like the 24 in grids for sDA, this effect is highlighted for points near walls.  For higher-density analyses like 'Illuminance', where the simulation grid is more dense and is then sampled down for display, this effect is removed.

The improvements about to be released will do 2 things:  Focus light gathering closer to the point, and remove points very close to the edges of Floors and/or Rooms (with an optional user-setting for the buffer).

Another thing to keep in mind is that for the 3D views, results are projected onto the Floor elements, and with a surface Analysis Display Style, the colors are interpolated between points, so it may appear that light is shared across a wall, but this is just a display artifact.  If you look at a '...pts_anno' style, you can see the actual points values.  This effect is not seen in Plan views, as the results are projected on Room elements, which bound the interpolation to Room boundaries/Walls.

David

0 Likes