Here I am again with my ray tracer for ipad. Now I'm trying to add glossy reflection to an object. How do i implement it? I read some documentation online like these:
http://www.cs.cmu.edu/afs/cs/academic/class/15462-s09/www/lec/13/lec13.pdf http://www.cs.cornell.edu/courses/cs4620/2012fa/lectures/37raytracing.pdf
If I understood correctly instead of trace a single ray as for standard reflection I have to trace n ray in a random direction. How do I get this random direction for each ray? How do i generate these samples?
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