I am modeling a laser light in Blender, but I am not sure how to get the results i wish to have. The result should look like the Picture:
http://www.marthagarzon.com/contemporary_art/wp-content/uploads/2010/02/mccall6.jpg
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Use an image as the texture for a lamp. (See Avoid distortions when creating projector effect)
and add volume scatter to the world (or create a mesh around the scene as voume scatter domain) so that the beam becomes visible.
Click on the image to enlarge.
More info on volumetric lights and scatterning here and here
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$\begingroup$ Also related: blender.stackexchange.com/questions/57013/… $\endgroup$ – cegaton Nov 13 '17 at 0:37
