Particles emitting towards a locator?

[surfer3d]

Here's a simple expression to do what you were looking to do. I assumed you were using a directional emitter, so these expressions only work with that type. Simply put this expression into your scene.

EMITTERNAME.directionX = LOCATORNAME.translateX;

EMITTERNAME.directionY = LOCATORNAME.translateY;

EMITTERNAME.directionZ = LOCATORNAME.translateZ;

Make sure to replace the EMITTERNAME and LOCATORNAME with the appropriate names for your scene.

If this isn't quite what you're looking for, feel free to reply and I'll see if I can help more. Enjoy!

[SJames]

hmm I tried just putting that (with the proper names) into the command line and also putting an expression on directionX,Y,Z, in the emitter channel box and I get the same error back.

'Error: Invalid use of Maya object "locator1.translateX".'

or when I put it in an expression I get:

'Error: An execution error occured in the expression expression1'

Maybe you could try it in a simple scene with one dir emitter and one locator and send it to me? I don't know what i'm doing wrong.

stephenjames@gmail.com if possible.

thanks for your help.

[surfer3d]

Here's a scene file for you, hope that does the trick!

http://sfdm.ca.scad.edu/vsfx/student/tasmith/laserDemo.ma

[SJames]

link doesn't work :( .. maybe try my email? the school firewall might be blocking it.

thanks again man

[surfer3d]

should work now, the link got messed up with an extra http:// above... fixed it though... good luck!

[Aneks]

just make a directional emitter and use an aim constraint !

ie select the locator and then shift-select the emitter and go to constaints => aim

just make sure that your aim vector and emitter directon ae the same

[SJames]

thanks guys! both gave me exactly what I want!

Thaaaaaaaanks!

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