uniform sampler2D sampler0;

void main (void)
{

  vec4 texel = texture2D(sampler0, gl_TexCoord[0].st);
  vec3 ct = texel.rgb;
  float at = texel.a;
  vec3 cf = gl_Color.rgb;
  float af = gl_Color.a;
  gl_FragColor = vec4(ct*cf,at*af);

}