#version 330 core
out vec4 FragColor;

in vec2 texCoord;

uniform sampler2D screenTexture;

void main()
{
    //FragColor = texture(screenTexture, texCoord);
    vec4 color = texture(screenTexture, texCoord);
    if (color.rgb == vec3(0.0, 0.0, 0.0))
        FragColor = vec4(0.0, 0.0, 1.0, 1.0);
    else
        FragColor = color;
}