Strange Daylight Analysis Results in Ecotect

[Anonymous]

Hi,

I want to simulate a Daylight Analysis on my model, imported in .DXF.

I have tried everything and my results are still so strange. The results show Daylight factors from 0 to 80+ wich is very odd because I only have a window transmittance of 0.46. And the result presents dots (peak values in the middle of other values) ??...

I filled every data concerning materials for each type of wall, floor, ceilling and windows.  I simplified my model and the results are the same. The surfaces normals seem to be in the right direction.

What can I do ?

Thanks for your answer.

[scheerd]

Hello.

I know this answer is frustrating, but we are no longer supporting daylighting workflows with Ecotect.  We do have a much better solution for Revit called Lighting Analysis for Revit, available from here for free:

http://www.autodesk.com/products/lighting-analysis-revit/overview 

The tool has a free level of analysis and also works with cloud credits for more complex and larger analyses.

David

[Anonymous]

Hello mlepotier, 

As David mentioned, sending your model into Revit for Daylighting analysis would probably be the best approach.

Other than that, I also see that you are using the internal Ecotect calculation for Daylight Factor, which is dependent on your zones in the model - you have to have "thermal zones" defined as Ecotect "sees" whether or not the light comes from outside a zone or not.  Please read the Daylight Factor Calculations help topic of Ecotect for more details. Since you said you imported from dxf, and looking at your images, it appears you have not set up any zones.

In this case, I would use the Radiance export from Ecotect, which is not dependent on zones, but rather geometry and material properties.  The results can be re-imported into your Ecotect model.

Let me know if you have more questions on this topic, otherwise please accept as a solution so that others can benefit from this information.

Cheers,