
#extension GL_OES_EGL_image_external : require
precision mediump float;
uniform samplerExternalOES texture;
varying vec2 v_TexCoordinate;

void main () {
    vec4 color = texture2D(texture, v_TexCoordinate);
    gl_FragColor = color;
//    gl_FragColor =  vec4(0,1,0,color.r);
}
