varying vec2 v_texCoord;
uniform vec3 u_changeColor;
uniform sampler2D u_texture;

void main()
{
    vec4 c = texture2D(u_texture, v_texCoord);
    if(c.a > 0.0){
        gl_FragColor = vec4(u_changeColor, c.a);
    }else{
        gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0);
    }
}
