Grasshopper

algorithmic modeling for Rhino

thermal glare

Hi, I am a graduate student in University of Southern California, and I want to ask some questions about using Ladybug and Honeybee. So I need to do some research about how the glaring problem caused by high-reflective and concave skyscraper. I need to simulate the Walkie Talkie building, and I need to pin point the location of the sunrays hitting the ground after being reflected by the facade and spot potential glare areas. And figure out the thermal comfort of the people standing of that point. I saw some discussion given by you about ray tracing , do you have any example file that I can refer to?  Thanks!

 

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Replies to This Discussion

Permalink Reply by Joseph Oster on November 24, 2015 at 3:52pm

Showing the oriented 'BBox', one side of which determines the planar grid for the sun rays.

Might look better at low resolution, less jiggle to surface normals, if the grid were aligned at the center instead of one corner?

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Permalink Reply by Joseph Oster on November 24, 2015 at 4:59pm

'BBox' with 'Bounce Lines on Surface Normals' (cyan blue)

Goal: reduce jiggle of surface normal intersection points between frames.

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Permalink Reply by Joseph Oster on November 24, 2015 at 5:28pm

(slowed animation, not computation speed)

Permalink Reply by Joseph Oster on November 24, 2015 at 6:08pm

Through the planar sun ray paths...

Permalink Reply by Joseph Oster on November 24, 2015 at 7:55pm

Points and normals still jiggle, they are not not aligned between frames (on middle / centroid of surface area?).

Permalink Reply by Joseph Oster on November 25, 2015 at 11:34am

Added group to 'Align Grid Center' of solar rays:

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