Ok, so I want to make a transitional animation that fades from one scene 
into another retaining a common object (like a sphere).  Specifically I 
want an apple held in a human hand to become the Earth as seen from 
orbit.  How to make the hand slowly fade away, ghost like?

For that matter what is the best way to make any simple object (in a 
simple scene) fade away?  I've thought about using .png based image maps 
and going with a variation in alpha transparency but there must be 
(hopefully) an easier way?

Thanks in advance

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"October" <ext### [at] yahoocom> wrote in message
news:3D3### [at] yahoocom...
> Ok, so I want to make a transitional animation that fades from one scene
> into another retaining a common object (like a sphere).  Specifically I
> want an apple held in a human hand to become the Earth as seen from
> orbit.  How to make the hand slowly fade away, ghost like?
>
> For that matter what is the best way to make any simple object (in a
> simple scene) fade away?  I've thought about using .png based image maps
> and going with a variation in alpha transparency but there must be
> (hopefully) an easier way?

Change the transparency value of the object

rgbt<1,1,1,0> ---> rgbt<1,1,1,1>

make sure you don't have light fading on for the object.

-tgq

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TinCanMan wrote:
> "October" <ext### [at] yahoocom> wrote in message
> news:3D3### [at] yahoocom...
> 
>>Ok, so I want to make a transitional animation that fades from one scene
>>into another retaining a common object (like a sphere).  Specifically I
>>want an apple held in a human hand to become the Earth as seen from
>>orbit.  How to make the hand slowly fade away, ghost like?
>>
>>For that matter what is the best way to make any simple object (in a
>>simple scene) fade away?  I've thought about using .png based image maps
>>and going with a variation in alpha transparency but there must be
>>(hopefully) an easier way?
> 
> 
> Change the transparency value of the object
> 
> rgbt<1,1,1,0> ---> rgbt<1,1,1,1>
> 
> make sure you don't have light fading on for the object.
> 
> -tgq
> 
> 

Thanks for the reply!

Ok, I get the drift of rgbt now (it's been awhile) but am still a bit 
lost on "don't have light fading on for the object".  Would you please 
elaborate?

Thanks again

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October wrote:
> 
> Ok, so I want to make a transitional animation that fades from one scene
> into another retaining a common object (like a sphere).  Specifically I
> want an apple held in a human hand to become the Earth as seen from
> orbit.  How to make the hand slowly fade away, ghost like?
> 
> For that matter what is the best way to make any simple object (in a
> simple scene) fade away?  I've thought about using .png based image maps
> and going with a variation in alpha transparency but there must be
> (hopefully) an easier way?
> 
> Thanks in advance

You probably can do this in POV with transparency but there may
be some 'interference' problems with the two images. I guess
post-processing would be much easier and faster.

Remco

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> Thanks for the reply!
>
> Ok, I get the drift of rgbt now (it's been awhile) but am still a bit
> lost on "don't have light fading on for the object".  Would you please
> elaborate?

In the 'interior' block you can specify 'fade_power' and 'fade_distance'.
If these are enabled they may interfere with the effect you want.  But these
shouldn't be used for opaque objects anyways as they wouldn't have any
effect.  What they do is fade the light as it passes through a transparent
or partially transparent object.

-tgq

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