Author Topic: Is it possible to fade a material to invisible?  (Read 6135 times)

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Offline rfollett

Is it possible to fade a material to invisible?
« on: August 04, 2012, 04:46:30 am »
Within an animation is it possible to fade a material from visible to invisible?

Offline rfollett

Re: Is it possible to fade a material to invisible?
« Reply #1 on: August 06, 2012, 12:45:53 pm »
does anyone answer the Animation questions? ;)

Offline PhilippeV8

Re: Is it possible to fade a material to invisible?
« Reply #2 on: August 07, 2012, 12:14:21 am »
I think this is on the list of things to add to KS in the future ..

guest84672

  • Guest
Re: Is it possible to fade a material to invisible?
« Reply #3 on: September 07, 2012, 04:56:25 pm »
Correct we will add this in the future.

Offline mkeymont

Re: Is it possible to fade a material to invisible?
« Reply #4 on: September 19, 2012, 08:23:11 am »
Hi,
The way I do this is to composite 2 separate renders in After Effects. The first render has the  component in question visible and in the second render, it is hidden. In After Effects (or any decent video editing app...) you simply crossfade from one to the other. The neat thing about this is that you can also simply lower the opacity of the "visible" clip to make it look semi-visible.

I hope this helps!
 - Mike

Offline PhilippeV8

Re: Is it possible to fade a material to invisible?
« Reply #5 on: September 19, 2012, 11:09:58 pm »
The smart thing about this is that you need only 2 renders to get a (say) 1 second sequence.

On the other hand it's editing and post work, which I'd like to have KS do on its own.

Maybe KS could be made such that if nothing else moves, it does make 30 frames from the 2, without rendering out all the 28 frames in between ?

Offline rfollett

Re: Is it possible to fade a material to invisible?
« Reply #6 on: October 08, 2012, 11:19:52 am »
Thanks Mike
That is exactly how we got round the issue. 2 animation renders mixed in After Effects
Rich

Offline jeffw

Re: Is it possible to fade a material to invisible?
« Reply #7 on: October 09, 2012, 09:18:07 am »
Assuming you have or can afford After Effects ($700)

Offline mkeymont

Re: Is it possible to fade a material to invisible?
« Reply #8 on: October 10, 2012, 07:02:07 am »
I know - I'm lucky to have CS6, but I'm also a big fan of free and there are definitely ways to do the same thing on the cheap. There are open source programs out there that you could use to do simple compositing (Jahshaka, Wax...). I agree however that it would be nice to be able to animate the transparency right in KS3. Doubling the render time and having to deal with post production in order to be able to fade parts out is silly when it is such a commonly needed function.
 - Mike