View Full Version : particle decay?

03 March 2002, 08:44 AM
Hi folks, does anyone know how to make a particle fade out rather than simply switch off when it reaches the end of its life? (in XSI)

Thanks in advance, Nick

03 March 2002, 09:38 AM
Heya Nick, what you would have to do is:

In Particle_Type -- Rendering Properties

you can animate the RGB/ALPHA over the timeline, the important thing here is to change the "Animation Reference RGB/ALPHA" to age instead of birth (for the effect you want... fading off over time.)

This means that if you create two keyframes, one at 1 (color red) and one at 100 (color blue or transparent), and u select age in the "Animation Reference RGB/ALPHA" your particles will change from red to blue/transparent over time, but due to the particles age... they-ll smoothly fade to the color u choose :)

Hope this helps u out!


03 March 2002, 09:56 AM
Thanks very much, I suspected this may be the way.

thanks again, Nick

03 March 2002, 10:43 AM
You are welcome :)

03 March 2002, 11:02 PM
thats 1 to 100 regardless of your actual timeline right? What if my timeline goes from 1001 to 1200 for example?

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