treepov.inc

// Pov Includes
#include "colors.inc"  
#include "transforms.inc"

// Custom Include
#include "tree.inc" //3D tree

background {color <0, 0, 0>}

#declare Camera_Location = <scene_center_x,175,scene_center_y> ;
#declare Camera_Lookat   = <scene_center_x,0,scene_center_y> ; 
 
// Use orthographic camera for true plan view 
camera {
        orthographic
        location Camera_Location
        look_at Camera_Lookat
        right Camera_Size*x
        up Camera_Size*y
}   	

// Union all the trees together into one object

union {
 
	#declare Rnd_1 = seed (1153);
 
	#declare LastIndex = dimension_size(tree_coords, 1)-2; 
	#declare Index = 0; 
	#while(Index <= LastIndex) 
                        object  { 
	                      TREE 
#						 scale 2.0
        		         scale tree_height[Index] 
		                rotate <0,rand(Rnd_1)*360,0> 
		                translate tree_coords[Index]  
        	        } 
		#declare Index = Index + 1; 
	#end 
 
// Pigment trees according to distance from camera 

	 pigment { 
 		gradient x color_map { 
 			[0 color rgb 1 * rand(Rnd_1)] 
 			[1 color rgb 0] 
 		} 
	 	scale <vlength(Camera_Location-Camera_Lookat),1,1> 
 	 	Reorient_Trans(x, Camera_Lookat-Camera_Location) 
 	 	translate Camera_Location 
	 } 
 	finish {ambient 1} 

}