#version 120

uniform float alpha;
uniform float time;
uniform float T;
uniform vec3 color;
uniform float seed; 
uniform float rand;

void main()
{
	float	len = min(length(gl_TexCoord[0].st), 1.f);
	vec3	c = color;
	float	a = alpha;

	len *= T;
	a *= (1.f - (len * len * len * len * len * len * len));

	gl_FragColor = vec4(a * c, a * alpha);
}