Re: serious texture mapping bug in current code

[Dair G. <da...@re...>]

=46rank C wrote:

>> But when I load the same floor model used in the screen shots posted=20
>> earlier, the bug is clearly happening in Geom Test.  You can try the=20
>> same model here: <http://www.strout.net/temp/Floor.3DMF>
>
>The texture is ARGB32... I've seen this, and it appears to be the same=20
>(or related) problem I mentioned earlier;

Yep, I think it's the same thing - i.e., bug 967765.

I had a quick look and confirmed that the vertices for your
closer-than-hither test weren't coming out as nans or anything: but the
fact it shows up when texturing a poly that's entirely in view suggests
that our projection is incorrect.

Swapping the texture type to RGB32 will put us back onto the opaque
path, which in theory should be doing exactly the same projection:
obviously isn't, but that was the plan (i.e., what we give GL out of our
pre-transformed transparency buffer should be what it ends up with after
projecting what we give it for opaque triangles).


-dair
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