#version 330 core

in vec2 FragPos;
in vec2 screenSize;

out vec4 FragColor;

void drawDepth() {
    FragColor = vec4(gl_FragCoord.z, gl_FragCoord.z, gl_FragCoord.z, 1.f);
}

void drawPoints()
{
    // Define the point size
    float pointSize = 15.0;

    // Get the current fragment position in screen coordinates
    vec2 fragCoord = gl_FragCoord.xy;

    // Calculate the distance from the fragment to the vertex position
    float dist = length(fragCoord - FragPos);

    // If the distance is within the point size, draw the point
    if (true || dist < pointSize)
    {
        FragColor = vec4(1.0, 0.0, 0.0, 1.0); // Red color for the point
    }
    else
    {
        FragColor = vec4(1.0, 1.0, 1.0, 1.0);
    }

    FragColor = vec4(FragPos.x, FragPos.y, 0, 1);
}

void main() {
    drawPoints();
    // drawDepth();
}