#ifdef GL_ES

precision mediump float;

#endif

uniform sampler2D tex0;

uniform vec4 tint;

uniform bool tintAdd;

uniform bool enableTexture;

varying vec2 tex;

void main()

{

    if(enableTexture){

        if (tintAdd){

            tint.a = 0.0;

            gl_FragColor = clamp(texture2D(tex0, tex) + tint, 0.0, 1.1);

        }else{

            gl_FragColor = texture2D(tex0, tex) * tint;

        }

    }else{

        gl_FragColor = tint;

    }

}