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You are here: GroIMP documentation » 🎓 User tutorials » Light » First steps » Sensors
02_user_tutorials:20_light:01_first_steps:10_sensor

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02_user_tutorials:20_light:01_first_steps:10_sensor [2026/03/25 08:39] – MH02_user_tutorials:20_light:01_first_steps:10_sensor [2026/03/25 08:46] (current) – MH
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   * exponent = 1 → standard Lambertian (cos θ)   * exponent = 1 → standard Lambertian (cos θ)
   * exponent > 1 → increasingly focused on the normal direction (like a directional PAR sensor)   * exponent > 1 → increasingly focused on the normal direction (like a directional PAR sensor)
 +
 +As consequence, the results of a SensorNode with the absorption of a primitive cannot be compared directly!
  
 Note: Sensor nodes can be enabled and disabled for the light model using the //LM.setEnableSensors(true/false)// function. By default they are disabled, since GroIMP version 2.1.4, before they were enabled by default. Having them disabled speeds up the light computation time for scenarios where not sensor nodes are involved.  Note: Sensor nodes can be enabled and disabled for the light model using the //LM.setEnableSensors(true/false)// function. By default they are disabled, since GroIMP version 2.1.4, before they were enabled by default. Having them disabled speeds up the light computation time for scenarios where not sensor nodes are involved. 
02_user_tutorials/20_light/01_first_steps/10_sensor.1774424373.txt.gz · Last modified: 2026/03/25 08:39 by MH