Forum: Poser - OFFICIAL

Subject: Lights

mhscspo opened this issue on Jul 16, 2007 · 7 posts

mhscspo posted Mon, 16 July 2007 at 8:20 PM

Has anyone ever done lighting effects with a police car to make them flash alternately?

I tried to do this without any success, I used the point light and the spot light but I couldn't see the results after the rendering, any help would be greatly appreciated.

geep posted Mon, 16 July 2007 at 8:45 PM

You could ...

Animate the lights using the "Constant" function and turn each light ON then OFF alternately.

cheers,
dr geep
;=]

Remember ... "With Poser, all things are possible, and poseable!"


cheers,

dr geep ... :o]

edited 10/5/2019


mhscspo posted Mon, 16 July 2007 at 9:40 PM

Thanks I will try that... which lights would be better to use, the point or the spot light?
by the way I like your Poser University...

geep posted Mon, 16 July 2007 at 9:51 PM

I would use a Point light inside the physical light (object) on the police car and
turn OFF (uncheck) "Casts shadows" for the physical light (object(s)) on the police car.

😄 Glad you like the"U" .......... it's a work in progress ... ;=]

cheers,
dr geep
;=]

Remember ... "With Poser, all things are possible, and poseable!"


cheers,

dr geep ... :o]

edited 10/5/2019


SYNTRIFID posted Tue, 17 July 2007 at 7:56 AM

Point lights flashing as the good doctor mentioned would do the trick.

If you want a really dramatic animaed effect you can use spot lights and rotate them alternately, like when one is at y rotate 0 position, another is at y rotate 90. 

Actually I would parent them to the physical light objects and rotate those physical objects for the proper look.

The moving shadows produced can give an added dramatic effect to a crime scene animation for example.

Hey! His nose is dry! ... Someone should lick it,  just in case. - Diego

geep posted Tue, 17 July 2007 at 8:06 AM

@ SYNTRIFID

Good suggestions ... perhaps a little more difficult to implement but certainly would provide much more dramatic shadow effects in the scene.

Summary ============================================

Blinking Lights - Use Point lights and turn on/off

Rotating lights - Use Spotlights as suggested by SYNTRIFID

===================================================

cheers,
dr geep
;=]

Remember ... "With Poser, all things are possible, and poseable!"


cheers,

dr geep ... :o]

edited 10/5/2019


gmadone posted Wed, 18 July 2007 at 7:02 PM

There are a variety of nodal solutions for flashing lights, this is probably the simplest.  The rate is controlled by value 1 of the sin node. This is set to change every 2 frames. Flip the step for the other light. (default) You can use the same function on the ambient value of a prop to make it flash. (Just in case we are talking about alternating headlamps instead of alternating lights)