// Various settings for max_trace_level, followed by the time to render at 512x384 no AA in 3.6,
// followed by the time to render in 3.7, followed by the percent difference comparing 3.7 to 3.6

// 1: 2s; 5s; 2.5x
// 5: 10s; 9s; 0.9x
// 10: 19s; 17s; 0.89x
// 25: 46s; 42s; 0.91x
// 50: 1m 36s (96s); 1m 28s (88s); 0.91x
// 100: 3m 36s (216s); 3m 42s (222s); 1.03x
// 256: 10m 16s (616s); 10m 16s (616s); 1x

global_settings {
	max_trace_level 25
}

camera {
	location -z*95
	look_at 0
}

box {-100, 100 pigment {rgb 0} finish{reflection 1}}

sphere {0,3 pigment {checker} finish {ambient 1}}

#declare c_x = -95;
#while (c_x <= 95)
	#declare c_y = -95;
	#while (c_y <= 95)
		#declare c_z = -95;
		#while (c_z <= 95)
			sphere {<c_x, c_y, c_z>, 4 pigment {color rgb 0} finish {reflection 1}}
		#declare c_z = c_z + 10;
		#end
	#declare c_y = c_y + 10;
	#end
#declare c_x = c_x + 10;
#end