[M4IF Technotes] MaterialKey

[axel.binder philips.com]

Hi together,
I have some questions about the MaterialKey and MatteTexture nodes of 
BIFS.
-Is it expected that the corresponding texture has the same color
  format as indicated by the isRGB field of the MaterialKey node?
- Is there any reference code sample available that shows a MaterialKey 
implementation
  (together with the expected accuracies)?
- The REVEAL mode of MatteTexture uses a third surface (an alpha plane). 
Is it expected
   that the other two surfaces may carry their own alpha planes (3 alpha 
planes in total)?
kind regards
axel binder
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Axel Binder                                              Philips Starnberg 
(SP3D)
Development Manager Software    Petersbrunner Str. 17
 D-82319 Starnberg, Germany
phone:  +49 8151 270 108 
fax:         +49 8151 270 200
mobile: +49 172 92 18 623
e-mail: axel.binder   philips.com
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