Logic Gadgets: Light

Icon logic gadgets light
Name of gadget Light
Section Cameras & Lighting
Number of Tweak pages 1
Author LadylexUK, QuietlyWrong
Last updated 12 April 2019 [Beta]


If you want your Dreamers to be able to see the things you put in your Dreams, you’re going to need some sort of light source. By default, every Scene is illuminated by a “Sun and Sky” that can be tweaked with the Sun & Sky gadget, but sometimes you’ll need more – and in fact lighting is such a powerful tool in the look of a Scene, it would be a rare scenario that an environment couldn’t be improved by one or more lights here or there – and the shadows that can come with them.

Any sculpt or painting can be given a “glow” effect (and sculpts can selectively emit light), but often it’s better to opt for the Light gadget. It has two types – a “diffuse” area illumination effect that is the most efficient way to add some light to a Sccene (Media Molecule refer to them as “cheap lights”) and a directional spotlight effect that has a great deal of flexibility including different “textures” and these are great for casting moody shadows.

No light source is really that cheap, in terms of Dreams performance (not even the “cheap lights”), so try to use them efficiently. You’re stuck with the Sun so try to make that the main light source in your scenes if possible; even if you’re creating an underground cave system you can always tweak the ceilings and walls so they don’t cast shadows!

Example Tutorial (adapted from Media Molecule)

  1. Stamp a light into your scene.
  2. Tweak it and go to the colour tweak.
  3. On the colour shade triangle, drag the picker to the tip of the right-hand corner (the most intense shade).
  4. Now stamp an action recorder into your scene.
  5. Spin the outer ring of the colour tweak around a few times, to change the hue all the way round the spectrum.
  6. Hit Stop recording – the action recorder will have captured the colour changing.
  7. Start time and check out your disco light!


Tweak Menus

  1. Type
  2. Brightness
    2a. Input
    2b. Output
  3. Colour
    3a. Input
    3b. Output
  4. Hue Cycle
    4a. Input
    4b. Output
  5. Beam Range
    5a. Input
    5b. Output
  6. Beam Angle
    6a. Input
    6b. Output
  7. Fade Angle
    7a. Input
    7b. Output
  8. Cast Shadows
    8a. Input
    8b. Output
  9. Use Image
    9a. Input
    9b. Output
  10. Image Blur
    10a. Input
    10b. Output
  11. Power
  1. Type
    Lights come in two varieties, and this allows you to switch between them.

    • Spot
      The Spot variant acts much like a spotlight at a theatre – it casts a cone of light in a specific direction. When the light is of this type, it gets a direction handle that allows you to orient however you want. Many of the tweaks below (from 5 to 10) are specific to the Spot type and are deactivated for the diffuse light.
    • Diffuse
      Selecting the Diffuse option gives you a light more like that of a lightbulb, casting light in all directions equally. It lacks many of the tweak options below and might be used to generally highlight areas in an environment. It is the cheapest way to add a light source to a Scene.
  2. Brightness
    Use this slider to set the brightness of your light source.
  3. Colour
    Use this to set the colour of your light source.
  4. Hue Cycle
    This slider allows you to change the hue (base colour) of the light. The actual colour depends also on the Colour setting. It provides an easy way to make simple changes to the light colouration, for example flipping between red, yellow and green.
  5. Beam Range
    The spotlight casts its light out in a cone; the light fades away as it gets further from the gadget’s point of origin. Use this to reduce or extend the range over which the light is cast.
  6. Beam Angle
    Use this to adjust the angle of the cone of light being cast out by the spotlight. You can choose a width between from 0º and 45º from the centre.
  7. Fade Angle
    Use this to determine how tightly the main body of light is focussed by the spotlight – a low value will result in a sharper “spot”.
  8. Cast Shadows
    Toggle this option to determine whether the spotlight will cast shadows (if not it effectively passes through the objects it is illuminating). Casting shadows requires more intensive processing, so if you have problems with frame-rates in your Dream, see if you can cut down on the number of shadow-casting lights (as well as lights in general).
  9. Use Image
    Like a theatrical spotlight, it’s possible to give the light a textured or dappled effect, as if by placing a decorated glass panel in front of the bulb. Use this slider to select either no image (position 0) or pick one of the presets available.
  10. Image Blur
    This is only relevant if you have chosen a positive Use Image setting – use the slider to dictate how sharp or blurry the light texture effect is.
  11. Power
    This is where you turn the gadget on/off.

Lex Tips

Useful Tutorials


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