CompuServe Thread

#Alpha Channel- Help!

2 messages in this thread
#97584From: Derek ChimentiApr 18, 1994 9:33 AM
Here I am again. Howdy. I have an alpha channel output problem. I have the Matrox Illuminator Pro which has an alpha channel output. However, when I render anything in 3DS3 I only get a full white matte output from the Illuminator. I'm using the copter mesh included with 3DS as a test. I've got the alpha button on in the renderer and an alpha channel is being saved with my targa files but I'm still not getting any alpha output from my Matrox card. Anyone else encounter this problem, too? Thanks!!! -Derek Chimenti Karl Productions
#97598From: Yost GroupApr 18, 1994 10:25 AM
You're under the mistaken impression that 3DS "talks" to the alpha channel stage of your Matrox board. That's not the way it works. 3DS generates FILE alpha… it doesn't know anything about the alpha stage on the board. The file alpha is used by 3DS and other programs as compositing information. – G