Simple Emitor Question

Integrating 3D models with photography

Interested in integrating your 3D work with the real world? This might help

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# 1 30-12-2003 , 08:37 PM

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I have an emitor but it is spewing particles throughout the whole animation but I just want it to do a birst and then stop.

Cheers for any comments

_LIVID

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# 2 30-12-2003 , 09:01 PM

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Set a keyframe for RATE at the time you want them to start, then to make them:

Stop slowly: Key the rate back to "0".
Stop quickly: Key the rate back to "0", and in the graph editor, make sure the curves are set to stepped user added image

Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com

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# 3 30-12-2003 , 09:09 PM

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Cheers mate

_LIVID

"You can live for yourself today -- or help build tomorrow for everyone" _LIVID

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Last edited by Tim_LIVID; 30-12-2003 at 09:12 PM.

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# 4 30-12-2003 , 09:15 PM

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No problem user added image

hehe.. If the last tips don't work, lemme know, as I'm not in front of Maya at the moment, so I could have screwed up something user added image

hehe..

Lemme know if that works for ya, otherwise, come back, and I'll post the right way...

Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com

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# 5 30-12-2003 , 09:22 PM

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That wprked but now there is another problem, I goto the Hardwere Render Buffer and render it. When i play it back there is only a fraction of the particles compared to the one I was expecting

_LIVID

"You can live for yourself today -- or help build tomorrow for everyone" _LIVID

Optical Minefield
My Blog

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# 6 30-12-2003 , 09:40 PM

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No problem.

If you want a BURST of particles at the start, or over the length of your keyframes, just increase the RATE for the first keyframe.

See my Maya 4.5 scene file for example:

Attached Files

ratetest.zip (5.2 KB, 138 views)

Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com

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# 7 30-12-2003 , 11:29 PM

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I have managed that bit and happy with the animation, now I am having strange problems with the rendering. When I do a softwere or hardwere render all I see is black. I know my particles are white but I still can't see them.

Do you know how to solve this problem?

_LIVID

"You can live for yourself today -- or help build tomorrow for everyone" _LIVID

Optical Minefield
My Blog

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# 8 31-12-2003 , 12:41 AM

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Which particle render type are you using?

...just wondering user added image

Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com

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# 9 31-12-2003 , 12:42 AM

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..... help?!

Im still a noob when it comes to rendering, a bit too abstract for my liking.

_LIVID

"You can live for yourself today -- or help build tomorrow for everyone" _LIVID

Optical Minefield
My Blog

Last edited by Tim_LIVID; 31-12-2003 at 12:50 AM.

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# 10 31-12-2003 , 02:20 AM

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Originally posted by ragecgi
Which particle render type are you using?

...just wondering

Originally Posted by

He's talking about an option in the attributes of your particles. Select your particles, then choose Windows>Attribute Editor. Under one of the sections you will see a dropdown list with things like "cloud" and "sprite." You need to select the kind of particle rendering you want here. Different selections obviously will give different results when rendered. The default particles do not render at all I believe, so you almost always have to change this to something.

www.Darkware3D.com

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# 11 31-12-2003 , 02:44 AM

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Thanks D! (U R better at wrds than I)

Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com

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# 12 31-12-2003 , 08:10 AM

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It was set to MultiStreak, I have changed it to Points ect but I seams to have no effect to the rendering. Have a look at pic.

_LIVID

P.S. The strange thing is, in the Hardwere Render Buffer, when I click 'Test Render' the picture looks fine but when I goto render sequence ... well, you can see the results.

Attached Thumbnails

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Name: particles.jpg
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Size: 46.0 KB
ID: 12338

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# 13 31-12-2003 , 02:47 PM

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hmmm...

Just shooting in the dark here, do you have depth-sort turned on by chance?
or not?

Also, what it your cameras clipping values set to?

Sorry... not sure on this one...

Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com

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