This lesson gives a basic sample lesson plan for introducing the V-Ray IES Light.




  • Unless you’ve already covered this part in another lecture it may be useful to establish certain qualities that all real-world lights posses
    • Talking about decay (a.k.a. falloff) is important. As an object gets closer to a light source, its lighting exponentially increases in brightness. (Inverse Square Law)
    • Color and temperature are an important point to touch on with real lights, and how temperature usually defines the color of a light
    • Larger light sources usually create more light and softer shadows than smaller lights with the same intensity
  • Since IES lights are all about simulating real architectural light profiles, show some images of light fixtures and the lights they cast to show how different lights have different properties that are defined by their fixture and bulb and lens, etc. This will make it easier to explain that IES lights try to simulate these lights and how they really look.
  • The major settings of the V-Ray IES Light are quire straight forward to explain.
    • The color mode allows us to have flexibility when setting up the light color. You can either use precisely measured colors using the Temperature mode or just pick a color you like.
    • It’s important to note that the IES file holds information about the intensity of the actual light source but that can be overridden
    • Like with the standard V-Ray Light the V-Ray IES Light has controls over which parts of the image to affect. You may choose to explain those or point the students to the lesson about the V-Ray Light
    • The softness of shadows also depends on the IES profile but can be overridden


  • In this cycle, you are going to demonstrate the options of the V-Ray IES Light. You can use either the provided scene and handout or create your own.


  • In this cycle, you are going to let your students experiment with the provided scene. You may want to give them the provided handout to use as a guideline.


Available materials

Lesson plan download

Presentation (Lecture) download

Activity handout download