Results 1 to 14 of 14

Thread: How can I do beams of light spreading out?

  1. #1
    Registered User
    Join Date
    Jun 2013
    Location
    Abq
    Posts
    60

    How can I do beams of light spreading out?

    I'm trying to simulate light beams or radio waves radiating from a couple different sources (see image). trying to get a more natural look, almost like uniform waves of light and I need them to go from the source and continually move out throughout the animation. Mine are ok, but instead of them just being straight id like the light waves to be curved a little and look more natural.

    The way I did it is i made a transparency image of some faded lines and applied that to the transparency of the surface of the light waves, then to animate them moving out I set an envelope for the position of the image, starting at 0 for frame 0 and moving to 15m for the last frame of the scene

    Click image for larger version. 

Name:	11.jpg 
Views:	109 
Size:	287.8 KB 
ID:	121035

  2. #2
    TrueArt Support
    Join Date
    Feb 2003
    Location
    Poland
    Posts
    7,993
    Mine are ok, but instead of them just being straight id like the light waves to be curved a little and look more natural.
    Natural look means using inverse-square law.

    This is proper procedure of making animated light waves:

    Click image for larger version. 

Name:	Snap1.png 
Views:	98 
Size:	314.6 KB 
ID:	121036

  3. #3
    Registered User
    Join Date
    Jun 2013
    Location
    Abq
    Posts
    60
    looks a little over my head. Do you know if theres a tutorial that shows how to do this effect? Thanks

  4. #4
    Super Member XswampyX's Avatar
    Join Date
    Aug 2010
    Location
    Kernow
    Posts
    2,079
    While there is nothing wrong with the answer Sensei has given, and seems to be actually very correct... you could just use the ripples texture. The spacings a bit off, but it might not bother you.


  5. #5
    TrueArt Support
    Join Date
    Feb 2003
    Location
    Poland
    Posts
    7,993
    Good for quick static waves. But how do you want to animate it? Changing texture position doesn't seem to work - it doesn't change wave start angle..

  6. #6
    Super Member XswampyX's Avatar
    Join Date
    Aug 2010
    Location
    Kernow
    Posts
    2,079
    It's self animating? Edit :- scrub the time line and it moves.

  7. #7
    Registered User
    Join Date
    Jun 2013
    Location
    Abq
    Posts
    60
    Thanks for all your help guys, this is great!

  8. #8
    TrueArt Support
    Join Date
    Feb 2003
    Location
    Poland
    Posts
    7,993
    Ah, right. I had Wave Speed 1.0 and it didn't want to animate. With much much smaller I see effect.

  9. #9
    TrueArt Support
    Join Date
    Feb 2003
    Location
    Poland
    Posts
    7,993
    I have made video tutorial of mine approach, which you can see here
    http://forums.newtek.com/showthread....cool-effect%29

    To mine taste 3D Textures Ripples are too close each other.

  10. #10
    Registered User
    Join Date
    Jun 2013
    Location
    Abq
    Posts
    60
    Thanks very much Sensei!

  11. #11
    Registered User
    Join Date
    Jun 2013
    Location
    Abq
    Posts
    60
    I wonder if theres a way to add some volume to these radio waves? Maybe use Sensei's method and use a 1/4 hemisphere instead of a 1/4 disk?

  12. #12
    Registered User
    Join Date
    Jun 2013
    Location
    Abq
    Posts
    60
    Actually, trying same effect with volumetric spotlight instead of 1/4 disk! I'll let you know my results

  13. #13
    Registered User
    Join Date
    Jun 2013
    Location
    Abq
    Posts
    60
    Had to tweak a couple things but works fantastic! Thanks again!!

    Click image for larger version. 

Name:	12.jpg 
Views:	61 
Size:	165.0 KB 
ID:	121054

  14. #14
    Super Member LW_Will's Avatar
    Join Date
    Feb 2003
    Location
    Somewhere, Out there...
    Posts
    1,188
    Quote Originally Posted by Sensei View Post
    I have made video tutorial of mine approach, which you can see here
    http://forums.newtek.com/showthread....cool-effect%29

    To mine taste 3D Textures Ripples are too close each other.
    Change the scale.
    Will Silver
    Animator
    digital TRiP
    "Frak'em all! I USE LIGHTWAVE!"

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •