Re: Transparent TriMesh bug

[Frank C <li...@si...>]

On 9-Jul-04, at 2:06 PM, James W. Walker wrote:

> Frank C <li...@si...> wrote:
>
>> The checkerboard texture just makes the distortions easier to see -
>> it's definitely the geometry going out of whack though, textured or
>> not.
>
> Well, there clearly is a problem specifically with texture coordinates 
> in alpha textures.  You can see that by downloading the 
> "argb32-test.3dmf" attachment to bug 967765 and loading it in Geom 
> Test.  You will see that the texture distorts and the geometry does 
> not.

Yes, sorry, I see what you're saying... though this would appear to be 
a case of one bug breaking two things, and perhaps not a separate issue 
altogether. The texture projection and geometry projection are both out 
of whack, just not out of the same whack :)

> Therefore, I think that using the checkerboard pattern in your example 
> confuses the issue.  Since you didn't post the source, I can't try it 
> with transparency but not textures.

Here's a new version that allows you to toggle textures: 
<http://webhome.idirect.com/~frankco/rb/TransTest.sit> and the source: 
<http://webhome.idirect.com/~frankco/rb/TransTestSource.zip> (though 
I'm not sure if REALbasic source is of any use to you).

Frank.