[M4IF Technotes] MPEG-4 Question about alpha values

[Renaud Cazoulat]

Hi,
You probably should have a look to the VRML documentation
(a good start is http://www.best.com/~rikk/Book/)
Renaud
Envivio
axel.binder   philips.com wrote:
> Hi,
>
> I found several places where alpha values are calculated
> for gray level shapes and during BIFS lighting. However,
> I couldn't find any place where these values (from the frame
> buffer, composed scene) are used again. Did I miss something
> or are the calculations of the destination alpha values
> obsolete?