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dmx_definitions:linear_fanning [2013/03/12 22:03] (current)
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 +====== Linear Fanning ======
  
 +Linear fanning gives a regular offset to lights, like when you fold out a paper fan - the lights point out to follow the lines in the fan - like this one: 
 +
 +{{:​redfan.jpg|}}
 +
 +If you applied a basic linear fan to 3 lights they would face like below:
 +
 +/ | \
 +
 +On a little to the left, one in the centre, and one a little to the right. The slider for "​First"​ adjusts how much of an offset the first light is given, so following on from the last example, if you increased the value on the "​First"​ slider, your lights would point like below:
 +
 +<- | \
 +
 +The first one fully to the left, the other two as they were before. If you increased the slider marked "​last",​ you would this:
 +
 +<- | ->
 +
 +the first light fully to the left, the centre one pointing straight out and the last one fully right.
 +
 +Now if you left the settings the same, but applied them over 5 lights, you would get this:
 +
 +<- / | \ ->
 +
 +Can you see how they "​fan"​ out from each other?
 +----------------------------------------------------------------------------------------------------------------------------------------------------------
 +Lets go back to saying we have 3 lights. The "​centre"​ of the fan is the light which points straight out - the one which is not affected by the fan. In the last few examples, the '​centre offset'​ would have been set to 50% - making the centre of the fan, the middle light of the 3 lights - therefore it is pointing straight out. So if you were to set the centre offset to "​0",​ you would make the far left light the '​centre'​ of the fan and you would get this:
 +
 +| \ ->
 +
 +The far left light is pointing straight out, the middle one is a bit to the right and the last one is fully right. If you set "​centre offset"​ to 100% you would get this:
 +
 +<- / |
 +
 +Now the far right light is straight out. Basically you only have half of the "​fan"​ because the centre of it is moved all the way left or right.
 +--------------------------------------------------------------------------------------------------------------------------------------------------------------------
 +DO NOT confuse "​centre offset"​ with "​centre"​. "​Centre offset"​ moves the "​centre"​ along the line of lights as described above. "​centre"​ applies an angle to the centre light so it is not point straight out anymore - basically this allows you to apply a fan, then make the whole fan point the left or right. Imagine you are holding a paper fan and you rotate the whole thing to the left or right - the spacing between the lines in the fan has not changed, but the whole thing is pointing in a different direction, this is what the "​centre"​ control does to the fan you have in your lights.
 +
 +So its a bit complicated but very useful - especially for an interesting look on big rigs (try fanning multiple set of 4 or 5 lights). Hopefully this will help you all understand how this cool new feature works.
 +====== ======
 +[[:​welcome|Back to the DMX Wiki]]
dmx_definitions/linear_fanning.txt ยท Last modified: 2013/03/12 22:03 (external edit)