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--- tutorials:light-modeling-light-sources [2025/06/02 18:56] – [SpotLight] MH
+++ tutorials:light-modeling-light-sources [2025/06/02 19:09] (current) – MH
@@ Line 95: / Line 95: @@
 Please refer to [[tutorials:basic-spectral-light-modeling#light_sources|Spectral Light Modelling]] tutorial.
+===== Light colour =====
+To define the colour of the emitted light source, the function //setColor// can be used. It expectes an object of //RGBColor// type as input argument, that itself expects a triple of red, green, and blue values in the range of zero to one. E.g., to get a red light source one needs to add //setColor(new RGBColor(1,0,0))// to the list of settings for a light node.
+<code java>
+protected void init () [
+  Axiom ==>
+    LightNode.(setLight(new SpotLight().(
+      setVisualize(true),
+      setNumberofrays(150),
+      setRaylength(1.1),
+      setColor(new RGBColor(1,0,0))
+    )));
+]
+</code>
+{{ :tutorials:light_node_colour.png?direct&400 |}}