#!version 2.2.6
volume
#!parameters:
uniform	float	distance	=	1
uniform	color	background	=	0
#!variables:
varying	float	d
varying	float	temporary_0
varying	float	temporary_1
varying	float	temporary_2
varying	float	temporary_3
varying	float	temporary_4
varying	float	temporary_5
varying	vector	temporary_6
uniform	vector	temporary_7
#!Init:
	return            
#!Code:
	vufloat            temporary_0 1
	length	("f=v")  temporary_4  I 
	vufloat            temporary_5 distance
	divff             	temporary_3 temporary_4 temporary_5
	negf              	temporary_2 temporary_3
	exp	("f=f")  temporary_1  temporary_2 
	subff             	d temporary_0 temporary_1
	vuvector           temporary_6 background
	mix	("v=vvf")  Ci  Ci  temporary_6  d 
	vfromf            	temporary_7 1 1 1
	vuvector           temporary_6 temporary_7
	mix	("v=vvf")  Oi  Oi  temporary_6  d 
	return