Alpha Channel with art.. Transparency

I saw this posted somewhere to make it so u can have an object where a certain color is transparent.

"
Melv
You can have a seperate alpha-channel if you use the following rules...

- The file-type must be JPG
- The base image must be RGB.
- The seperate alpha-channel image must be in the same directory as the base image.
- You name the alpha-channel with the same filename but append ".alpha.jpg".

Therefore, you would use the following filename format...

"mySprite.jpg" - Base RGB Image
"mySprite.alpha.jpg" - Seperate Alpha Image

This is a core-engine capability and the resultant images can be used anywhere.

EDIT: You can see this code in "gTexManager.cc" (Line 1286).

- Melv.

Edited on Nov 13, 2005 05:45
"

I followed all these rules yet I still see the white around my object. I used Paint to make the object.

My datablock is as follows

datablock t2dImageMapdatablock(spikeImageMap)
{
imageName = "~/data/Images/spike";
imageMode = full;
};

I also tried

datablock t2dImageMapdatablock(spikeImageMap)
{
imageName = "~/data/Images/spike";
imageMode = key;
};

none of these work, I still get an annoying square color surrounding my object.

Anyone know what to do?