View Full Version : Silly newbie! ALPHA CHANNEL

10-16-2008, 08:32 AM
I still can't figure out a simple alpha channel on a polygon. I have a .png sequence, 300 frames of a Particle Illusion effect I want. The alpha is on in the sequence, I see that the frames are correct, a transparent background, as I check them in Photoshop they are 32 bit files.

I have a simple square polygon in LW 3D. I map the sequence on the surface, turn on enable alpha and I still see the polygon surface, that should be removed by the alpha....What am I doing wrong? Thanks!!!

10-16-2008, 08:51 AM
The alpha channel will only cause the surface map to show in certain places, it won't hide the rest of a polygon. For that you either need to use the alpha to drive the transparency channel of the surface or you need to apply the alpha as a clip map on the object in the object properties panel. Look up transparency and clip maps in the manual and it should give you the information that you need.

10-16-2008, 09:12 AM
Thanks! The transparency channel seemed to work OK.