Re: Re: Question concerning MNG alpha support using DHDR delta_type 1.
Glenn Randers-Pehrson <[email protected]> Sat, 06 Mar 2004 14:58:04 -0500
| Newsgroups | gmane.comp.graphics.mng.general |
|---|---|
| Message-ID | <[email protected]> |
At 07:00 PM 3/6/04 +0100, Gerard Juyn wrote: >> data. Also, the description for "alpha addition" (type 2) states that >> "the color samples are not changed". Using alpha blending for pixel >> addition (type 1), the alpha value alters the color value if blending is >> applied, which seems inconsistent. The compression/differencing method does not change the color samples. This is what the description is talking about. The new object will contain the same color samples as the parent object, and the alpha sample will be modified. Later, the alpha value together with the underlying color may change the displayed color, if the object is displayed. Glenn -- Send the message body "help" to [email protected]