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Is it possible to create a holographic lighting in cycles? This is possible In the Blender Internal render engine, but I'm not going for linking lamps. Here is what I mean (the light that is holding the sphere inside it) -

enter image description here

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Yes, this is possible using volumetrics:

enter image description here

Method 1:

Using a cube to scatter light emitted from a spot lamp.

  1. Create a cube and give it a volume scatter material:

    enter image description here

  2. Add a spot lamp:

    enter image description here

Method 2:

You could also fake this by modeling the cone, then using a volumetric gradient for the falloff:

enter image description here

It won't be as physically accurate or as flexible, but it will be less noisy:

enter image description here

Example .blend (for both methods)

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  • $\begingroup$ Thanks. is the light source a "sun lamp"? $\endgroup$
    – Vladimir
    Commented Sep 16, 2014 at 21:59
  • $\begingroup$ @Vladimir No, a sun lamp wouldn't work for this at all.. $\endgroup$
    – gandalf3
    Commented Sep 16, 2014 at 22:07
  • $\begingroup$ Would you like to post a blend? 'Cause the volume is showing the shape of the cube and its nothing like your image above. $\endgroup$
    – Vladimir
    Commented Sep 16, 2014 at 22:25

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