User:IMBJR/povray script examples

Examples of the Scene Description Language

The following is an example of the scene description language used by POV-Ray to describe a scene to render. It demonstrates use of the camera, lights, a simple box shape and the transforming effects of scaling, rotation and translation.

POV-Ray image output based on the script to the left

#version 3.6;
#include "colors.inc"
global_settings {
	assumed_gamma 1.0
}

background {
	color rgb <0.25,0.25,0.25>
}

camera {
	location	<0.0, 0.5, -4.0>
	direction	1.5*z
	right		x*image_width/image_height
	look_at		<0.0, 0.0,  0.0>
}

light_source {
	<0, 0, 0>        
	color rgb <1, 1, 1>
	translate <-5, 5, -5>
}
light_source {
	<0, 0, 0>        
	color rgb <0.25, 0.25, 0.25>
	translate <6, -6, -6>
}

box {
	<-0.5, -0.5, -0.5>
	<0.5, 0.5, 0.5>
	texture {
		pigment {
	 		color Red
	   	}
	  	finish{
	    		specular 0.6
	  	}
	  	normal {
	    		agate 0.25
	    		scale 1/2
	  	}  	  	
	}	
	rotate <45,46,47>
}

The following script fragment shows the use of variable declaration, assignment, comparison and the while loop construct:

POV-Ray image output based on the script to the left

#declare the_angle = 0;

#while (the_angle <= 360)

	box {
		<-0.5, -0.5, -0.5>
		<0.5, 0.5, 0.5>
  
		texture {
  
	 		pigment {
		 		color Red
		   	}
   
	 	  	finish{
	 	 	   	specular 0.6
	 	  	}
   
	 	  	normal {
	 	    		agate 0.25
		 	    	scale 1/2
	 	  	}
  	
		}

		rotate the_angle
	
	}

	#declare the_angle = the_angle + 45;
	
#end