RE: Bouncing/Blinking

Date : Wed, 5 Sep 2007 15:51:55 -0400
To : <XSI(at)Softimage.COM>
From : "Prapas Akie" <aprapas(at)chaines.astral.com>
Subject : RE: Bouncing/Blinking

Actually, the balls change to white in 5 frames once they hit the ground. The ground is a flat plan so it all happens at Y=0 but, there are a few hundred balls with their own timing.

 

I know I can create a new pass and new MAT anim but that would have to be hand-adj in the dopesheet for each ball at the frame it hits the ground.

I don’t mind the labour, I’m hoping to save some time and hopefully learn something new (in case they decide to double the amount of balls again to 500).

 

BTW, the “RGB color” does not allow for an _expression_ to be created.

 

Thanks

Akie Prapas
Infographiste 3D VFX
Les Chaines Tele Astral Inc.
514.938.3320             X-4540


De : owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] De la part de James Easter
Envoyé : 5 septembre 2007 15:29
À : XSI(at)Softimage.COM
Objet : Re: Bouncing/Blinking

 

Hmmmmm... well assuming you have a flat ground plane you could link the color to the global y position so that as the balls neared/hit/rebounded the ground their color would change.  Basically as they reach a certain point in the global Y (above the ground) the color changes.  If you have multiple ground levels then this would be trickier.  Perhaps this is something that can be done in post?

~ JamesCG

On 9/5/07, Prapas Akie <aprapas(at)chaines.astral.com> wrote:

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

 

 


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