precision mediump float;


uniform float Transparency;
uniform vec4 LightDirection;

varying vec3 fragNormal;
varying vec3 fragColor;

void main() {
	vec4 color = vec4(fragColor.rgb, 1.0);

	float intensity = clamp(dot(normalize(LightDirection.xyz), -normalize(fragNormal)), 0, 1);
	
	gl_FragColor = vec4(color.rgb * intensity + vec3(0.2, 0.2, 0.2), color.a * Transparency);
}