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Another Alpha Map Problem

by Rayk Kerstan · in Artist Corner · 03/24/2003 (12:35 pm) · 1 replies

Hello out there !

Our grafikers have problems with the transparency of our moddels.
Especially our Trees look very exciting.
Here is an example what i mean:

Thats out tree in 3d max
http://www.summer-days.de/3dsmax/baum3dsmax.jpg

An thats the tree in torque engine :(
http://www.summer-days.de/3dsmax/baumtorque.jpg

It looks like, that the model have some kind of transparence, but i think there is no alphachannel. We use the PNG format, but we cant activate an alphachannel.
Did anyone of you had the some problem, or any ideas how we could solve this issue, that our models look better in torque engine ? Do we need some kind of "special engine" technique, that we must code first ?
Please help us, we are frustrated =P

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#1
03/24/2003 (12:52 pm)
Well from looking at it the model doesn't seem to have the same amount of Foliage in each shot so I would guess some of your foliage is not linked up in the Heirachy. Also it looks like your alpha channel is working fine it kinda looks like you made the image of the leaves with a black background. Maybe try one of the greens for from your leave color as a background instead.
How many materials are you using? I would make a tree using a multi-subobject materail with 2 bitmaps 1 for the trunk and 1 for leaves. This will also help it SORT better. Doesn't look like thats a problem though.
Make sure OPICITY is on in your leaf material and off in your bark material. Other than that thats all I can think of. No extra code is needed for an alpha channel.

Matt