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Visibility polygon algorithm
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Computational geometry algorithm to create visibility polygon among other polygons.
1 - cast a ray to every polygon vertex
2 - add two more rays with a very small angle gap (-0.1 and 0.1)
3 - check for ray intersection (update ray end point based on intersection point)
5 - draw light shape with ray end point
References :
1 - cast a ray to every polygon vertex
2 - add two more rays with a very small angle gap (-0.1 and 0.1)
3 - check for ray intersection (update ray end point based on intersection point)
5 - draw light shape with ray end point
References :
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