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# raytracing tutorial
# 07- experiment with recursive rays function


    

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# max depth for scene
max_depth = 3

# recursive ray function

def ray(depth):
    print("depth = ", depth, "max_depth = ", max_depth)
    
    # colour contribution
    colour_contribution = 0.1/depth
    
    # fire off new ray
    if (depth < max_depth):
        colour_contribution += ray(depth+1)
        pass
    
    return colour_contribution


    

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ray(1)


    

    




depth =  1 max_depth =  3
depth =  2 max_depth =  3
depth =  3 max_depth =  3






    
Out[5]:





0.18333333333333335

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