lighttroupe/luz

class ActorEffectPixelate < ActorEffect
    title                "Pixelate"
    description "Draws image at a lower resolution."

    categories :color

    setting 'segments_x', :integer, :range => 1..1000, :default => 100..1000, :shader => true
    setting 'segments_y', :integer, :range => 1..1000, :default => 100..1000, :shader => true

    def render
        code = "
            float x = floor(texture_st.s * float(segments_x));
            float y = floor(texture_st.t * float(segments_y));

            texture_st.s = (x * (1.0 / float(segments_x)));
            texture_st.t = (y * (1.0 / float(segments_y)));
        "

        with_fragment_shader_snippet(code, self) {
            yield
        }
    end
end