Utilisation : Les liens ne sont pas apparents. Pour obtenir des informations sur un mot clé, cliquez-le dans le script !

// Persistence Of Vision Ray Tracer Scene Description File
// File: cornell.pov
// Vers: 3.5
// Desc: Radiosity demo scene. See also http://www.Graphics.Cornell.EDU/online/box/
// Date: August 2001
// Auth: Kari Kivisalo

// +w300 +h300

global_settings {
	assumed_gamma 1.0
	radiosity {
		pretrace_start 0.04
		pretrace_end 0.01
		count 200
		recursion_limit 3
		nearest_count 10
		error_bound 0.5
	}
}

#declare Finish = finish {diffuse 0.75 ambient 0}
#declare White = texture {pigment {rgb <1, 1, 1>} finish {Finish}}
#declare Red = texture {pigment {rgb <0.57, 0.025, 0.025>} finish {Finish}}
#declare Green = texture {pigment {rgb <0.025, 0.236, 0.025>} finish {Finish}}
#declare LightColor = <1, 0.67, 0.21>;
#declare N = 3;	// Divisions per side
#declare DX = 13/N;	// Dimensions of sub patches
#declare DZ = 10.5/N;

#declare SubPatch = light_source {
	<27.8, 54.88, 27.95>
	color LightColor*7
	area_light DX*x, DZ*z, 4, 4 jitter adaptive 0
	spotlight radius -90 falloff 90 tightness 1 point_at <27.8, 0, 27.95>	// for cosine falloff
	fade_power 2 fade_distance (DX+DZ)/2
}

#declare i = 0;
#while (i<N)
	#declare j = 0;
	#while (j<N)
		light_source {SubPatch translate <i*DX-(13-DX)/2, 0, j*DZ-(10.5-DZ)/2>}
		#declare j = j+1;
	#end
	#declare i = i+1;
#end

camera {
	location <27.8, 27.3,-80.0>
	direction <0, 0, 1>
	up <0, 1, 0>
	right <-1, 0, 0>
	angle 39.5
}

// OBJECTS

// Light Patch

box {
	<21.3, 54.87, 33.2> <34.3, 54.88, 22.7> no_shadow
	pigment {rgb <1, 1, 1>} finish {ambient 0.78 diffuse 0}
}

union {
	// Floor
	triangle {<55.28, 0.0, 0.0>, <0.0, 0.0, 0.0>, <0.0, 0.0, 55.92>}
	triangle {<55.28, 0.0, 0.0>, <0.0, 0.0, 55.92>, <54.96, 0.0, 55.92>}
	// Ceiling
	triangle {<55.60, 54.88, 0.0>, <55.60, 54.88, 55.92>, <0.0, 54.88, 55.92>}
	triangle {<55.60, 54.88, 0.0>, <0.0, 54.88, 55.92>, <0.0, 54.88, 0.0>}
	// Back wall
	triangle {<0.0, 54.88, 55.92>, <55.60, 54.88, 55.92>, <54.96, 0.0, 55.92>}
	triangle {<0.0, 54.88, 55.92>, <54.96, 0.0, 55.92>, <0.0, 0.0, 55.92>}
	texture {White}
}

union {
	// Right wall
	triangle {<0.0, 54.88, 0.0>, <0.0, 54.88, 55.92>, <0.0, 0.0, 55.92>}
	triangle {<0.0, 54.88, 0.0>, <0.0, 0.0, 55.92>, <0.0, 0.0, 0.0>}
	texture {Green}
}

union {
	// Left wall
	triangle {<55.28, 0.0, 0.0>, <54.96, 0.0, 55.92>, <55.60, 54.88, 55.92>}
	triangle {<55.28, 0.0, 0.0>, <55.60, 54.88, 55.92>, <55.60, 54.88, 0.0>}
	texture {Red}
}

union {
	// Short block
	triangle {<13.00, 16.50, 6.50>, <8.20, 16.50, 22.50>, <24.00, 16.50, 27.20>}
	triangle {<13.00, 16.50, 6.50>, <24.00, 16.50, 27.20>, <29.00, 16.50, 11.40>}
	triangle {<29.00, 0.0, 11.40>, <29.00, 16.50, 11.40>, <24.00, 16.50, 27.20>}
	triangle {<29.00, 0.0, 11.40>, <24.00, 16.50, 27.20>, <24.00, 0.0, 27.20>}
	triangle {<13.00, 0.0, 6.50>, <13.00, 16.50, 6.50>, <29.00, 16.50, 11.40>}
	triangle {<13.00, 0.0, 6.50>, <29.00, 16.50, 11.40>, <29.00, 0.0, 11.40>}
	triangle {<8.20, 0.0, 22.50>, <8.20, 16.50, 22.50>, <13.00, 16.50, 6.50>}
	triangle {<8.20, 0.0, 22.50>, <13.00, 16.50, 6.50>, <13.00, 0.0, 6.50>}
	triangle {<24.00, 0.0, 27.20>, <24.00, 16.50, 27.20>, <8.20, 16.50, 22.50>}
	triangle {<24.00, 0.0, 27.20>, <8.20, 16.50, 22.50>, <8.20, 0.0, 22.50>}
	texture {White}
}

union {
	// Tall block
	triangle {<42.30, 33.00, 24.70>, <26.50, 33.00, 29.60>, <31.40, 33.00, 45.60>}
	triangle {<42.30, 33.00, 24.70>, <31.40, 33.00, 45.60>, <47.20 33.00 40.60>}
	triangle {<42.30, 0.0, 24.70>, <42.30, 33.00, 24.70>, <47.20, 33.00, 40.60>}
	triangle {<42.30, 0.0, 24.70>, <47.20, 33.00, 40.60>, <47.20, 0.0, 40.60>}
	triangle {<47.20, 0.0, 40.60>, <47.20, 33.00, 40.60>, <31.40, 33.00, 45.60>}
	triangle {<47.20, 0.0, 40.60>, <31.40, 33.00, 45.60>, <31.40, 0.0 45.60>}
	triangle {<31.40, 0.0, 45.60>, <31.40, 33.00, 45.60>, <26.50, 33.00, 29.60>}
	triangle {<31.40, 0.0, 45.60>, <26.50, 33.00, 29.60>, <26.50, 0.0, 29.60>}
	triangle {<26.50, 0.0, 29.60>, <26.50, 33.00, 29.60>, <42.30, 33.00, 24.70>}
	triangle {<26.50, 0.0, 29.60>, <42.30, 33.00, 24.70>, <42.30, 0.0, 24.70>}
	texture {White}
}

Et voici ce que nous obtenons :