uniform sampler2D _MainTex;
void main ()
{
  vec4 col_1;
  col_1.xyz = (texture2D (_MainTex, gl_TexCoord[0].xy).xyz * (gl_TexCoord[1].xyz * 2.0));
  col_1.w = 1.0;
  gl_FragData[0] = col_1;
}