• kyoji@lemmy.world
    0·
    5 days ago

    Depending on the kind of monitor you have this isn’t really true, the screen’s backlight will use the same amount of energy whether the rendered scene is all black or all white. Exceptions being technologies like OLED where individual pixels can be turned off/on

      • kyoji@lemmy.world
        0·
        5 days ago

        While this is true, the meme suggests (to me) that, just as in real life, a lamp that is on consumes more energy than a lamp that is off. In addition, in the case of a monitor with a back light, every pixel in the scene will consume the same amount of energy (assuming all ‘pixels’ in a monitor panel consume the same energy) regardless of what is rendered.

        Taking all that into consideration, not only does the lamp not consume anymore power when on, the lamp itself does not consume any more power than any other object rendered in the scene. I believe this is only true for when: 1) a monitor has an always-om backlight 2) it is not an HDR rated monitor and 3) we are only considering energy consumed during the production of light, not while rendering.

        (I know the meme is not serious, but I’m having fun 🙂)