Hmmm thats odd...you used to be able to apply an expression directly onto the animatable parameter of the Shaders RGB value, but for some reason, this isn't possible any more.
Is anyone else experiencing this with 6.02... or did I imagine this could be done?
There is a workround -
1.
Open an animation Editor
2.
Change the Editore drop down box to be Expression Editor
3.
Using the Object button, browse to your bouncing ball>Material>Surface>Out>Diffuse>and then the Red Channel.
4.
This will then appear in the expression pane
5.
Copy this into the Expression Target parameter box under the recycle button
6.
you can now type an expression into the expression pane that will effect the Red Channel
7.
To affect the Green and Blue Channel, use the Prev and Next button to the side of the Target parameter box to cycle through.
Seems a bit look winded, but maybe the Parameter Connection box would do a faster job?
I found if you untick the 'Animated Paramets and Keyable parameters' option in the F-Curve Explorer view you can see all the animatable parameters in the Animation Tree, so you can quicly select the channels you wish to set an expression on, in this case, the channels are under Photon. You can therefore ignore steps 3,4 and 5.
If this makes no sense I can send you a quick capture.
Cheers
Saf
________________________________
From: owner-xsi(at)Softimage.COM on behalf of Prapas Akie
Sent: Wed 05/09/2007 19:48
To: XSI(at)Softimage.COM
Subject: Bouncing/Blinking
Hello,
I have a scene that started with a few random 'bouncing balls' in military formation that has now turned into a few hundred random bouncing balls still in military formation.
Now the client would like the balls to 'blink' (basically change color to white over 5 frames) when they hit the ground.
I tried to apply an expression to the material (RGB values) with no success. It seems that feature is N/A.
Is there a miraculous fix for this scenario or am I SOL with a one at a time modif?
Thanks and have a goodday.
Akie Prapas
