Re: Transparency issues?

[James D. <ja...@ro...>]

On 27-Aug-04, at 4:03 PM, James Dessart wrote:

> I seem to be having trouble when I set the attribute 
> kQ3AttributeTypeTransparencyColor on my billboard object. It seems 
> that no matter what I set it to, other than 1.0, I get some strange 
> transparency effect. In one image, the transparent part is simply the 
> darkest part of the image, and with a different transparency setting, 
> the transparent part is the border between a white background and the 
> dark part of the image.
>
> In yet another, the transparency doesn't change, regardless of the 
> transparency colour. Does anyone have any idea what might be going on 
> here? Could it be that these images have an alpha channel, and that 
> that is disrupting Quesa's setting?

Here's my latest set of findings: I've been using 32 bit GWorlds for my 
mipmaps, but when I switched to 16 bit the transparency worked as 
expected. Would this be qualified as a bug? Or simply a quirk?

James