First, please see the Simulations in General page for basic information relevant to most or all simulations.
Metrics >> Daylight Images >> Point-in-Time Glare
Using a point-in-time glare simulation in DIVA, the visual comfort of a person under the simulated conditions at the camera viewpoint can be simulated. The Daylight Glare Probability (DGP) metric is used in the comfort evaluation which considers the overall brightness of the view, position of 'glare' sources and visual contrast.
The camera type is automatically changed to a 180 degree fisheye lens for the visual comfort analysis. Multiple camera views can also be selected from the "Select Camera Views" option.
The simulation uses evalglare v1.0 to calculate Daylight Glare Probability (DGP) from a luminance image based on total vertical eye illumance and contrast. One freely available paper on the method is found here.
The resultant image shows contrast-based glare sources highlighted in color, and displays text at the top of the image showing the numeric DGP rating as well as a plain-text description of the predicted glare for the specific luminance image.