Hi,
ParticleCurve on the alpha should work, or a ParticleExpression. You probably
need to add a BlendMat node in between your material and the ParticleEmitter
and set "surface blend" to "modulate" in order to get the alpha to apply. As an
example:
set cut_paste_input [stack 0]
version 6.3 v3
ColorWheel {
inputs 0
gamma 0.45
name ColorWheel1
selected true
xpos -291
ypos -223
}
BlendMat {
surfaceblend modulate
name BlendMat1
selected true
xpos -181
ypos -199
}
push $cut_paste_input
Cube {
name Cube1
selected true
xpos 84
ypos -199
}
push 0
ParticleEmitter {
inputs 3
rate 1
color {1 1 1 1}
name ParticleEmitter1
selected true
xpos -41
ypos -199
}
ParticleCurve {
curves {r {}
g {}
b {}
a {curve l 0.2017413378 0.01293540001}
size {}
mass {}}
name ParticleCurve1
selected true
xpos -41
ypos -175
}
Viewer {
frame 87
input_process false
name Viewer1
selected true
xpos -41
ypos -71
}
Jerry
On 25 Apr 2012, at 20:02, Howard Jones wrote:
> Hi
>
> Is there a way to fade in and out particles. At the moment they are popping
> on and off and I'd like a fade - I tried a ParticleCurve but that doesn't
> appear to work.
>
> All help appreciated
>
> Thanks
> Howard
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Jerry Huxtable,
Senior Product Designer
The Foundry
Tel: +44 (0)20 7968 6828 - Fax: +44 (0)20 7930 8906
Web: www.thefoundry.co.uk
Email: [email protected]
The Foundry Visionmongers Ltd.
Registered in England and Wales No: 4642027
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