frienderer 0.13.0

Very simple OpenGL renderer, mainly for GUIs.
Documentation 
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#version 330

uniform vec2 u_viewport;
uniform vec2 u_offset;
uniform vec2 u_scale;

layout(location = 0) in vec2 position;
layout(location = 1) in float point_size;
layout(location = 2) in int color;

vec2 from_pixel_pos(vec2 position, vec2 viewport) {
    return mix(vec2(-1.0, 1.0), vec2(1.0, -1.0), position / viewport);
}

vec4 int_to_color(int c) {
    return vec4(
        float((c >> 24) & 0xff),
        float((c >> 16) & 0xff),
        float((c >> 8) & 0xff),
        float((c >> 0) & 0xff)
    ) / 255.0;
}

out vec4 v_color;

void main() {
    gl_Position = vec4(from_pixel_pos(u_offset + position * u_scale, u_viewport), 0.0, 1.0);
    gl_PointSize = point_size;

    v_color = int_to_color(color);
}