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Subject: How to create a narrow spotlight beam??

hamiltonpl opened this issue on Jan 26, 2008 · 11 posts

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hamiltonpl ( ) posted Sat, 26 January 2008 at 4:05 PM · edited Mon, 23 December 2024 at 8:39 PM

I've been experimenting with volumetric lighting so that I get a good beam from a prop flashlight. However the angle is too wide. I can't seem to find the right dials or setting to make this a NARROW beam. Does anyone know how to do this?

Windows 10 - Poser Pro 2012 - 64Bit - 24GB RAM - 4 x 3.40 GHZ processor

Acadia ( ) posted Sat, 26 January 2008 at 4:57 PM

For a spotlight I think you need to fiddle with the "start" and "end" dials. Here is a thread that explains how that works.

http://www.runtimedna.com/mod/forum/messages.php?forum_id=95&ShowMessage=346553

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FrankT ( ) posted Sat, 26 January 2008 at 5:02 PM

angle start and angle end are the two you are wanting. Angle End specifically - smaller the number, narrower the beam

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hamiltonpl ( ) posted Sat, 26 January 2008 at 5:46 PM

okay thanks. To get the beam to come out of the prop flashlight I am having to place the actual spot pretty far back so tha the width of the spot matchs the diameter of the flashlight end. I wish than intial angle could be made wider - as is I have a light well behind a prop that does not cast shadows...is there and eaier way that I am not thinking of here?

Windows 10 - Poser Pro 2012 - 64Bit - 24GB RAM - 4 x 3.40 GHZ processor

DarkEdge ( ) posted Sat, 26 January 2008 at 5:58 PM

Dist start will affect the starting point beam width...is that what you need?

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hamiltonpl ( ) posted Sat, 26 January 2008 at 6:13 PM

Maybe......what value would you use to have the width be wider at the beginning of the beam? Also, is there a limit to the number of spotlights within a scene that can render volumetrice effects? I have TWO. One will render and the other will not......

Windows 10 - Poser Pro 2012 - 64Bit - 24GB RAM - 4 x 3.40 GHZ processor

DarkEdge ( ) posted Sat, 26 January 2008 at 6:28 PM · edited Sat, 26 January 2008 at 6:29 PM

Quote - Maybe......what value would you use to have the width be wider at the beginning of the beam?

Angle Start 10 (example)
Angle End 3

Wide beam beginning and narrowing at the end.

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lesbentley ( ) posted Sat, 26 January 2008 at 7:13 PM

Quote - Dist start will affect the starting point beam width...is that what you need?

To the best of my knowledge, the above quote is not correct. As I understand it, 'Dist Start' will NOT affect the starting point beam width. Dist Start will only work when Dist End is used, Dist End sets sets the distance at which the light will cease to have any effect, Dist Start sets the distance at which the light intensity will start to fall off.