varying float LightIntensity;
varying vec3  MCposition;

uniform vec3  LightPos;

void main()
{
    vec3 ECposition = vec3(gl_ModelViewMatrix * gl_Vertex);
    MCposition      = vec3(gl_Vertex);
    vec3 tnorm      = normalize( gl_NormalMatrix * gl_Normal );
    LightIntensity  = abs( dot(normalize(LightPos - ECposition), tnorm) );
    LightIntensity *= 1.5;
    gl_Position     = gl_ModelViewProjectionMatrix * gl_Vertex;
}