#ifdef GL_ES
precision mediump float;
#endif
varying vec2 v_texCoord;
uniform sampler2D Frame;

void main()
{
vec4 fragColor = texture2D(Frame, v_texCoord);
float FragColor = dot(fragColor, vec4( 0.299, 0.587, 0.114, 0.0 ));
gl_FragColor = vec4(FragColor);
}