[opensource-dev] texture problem on avatars

Chang Liu liu.chang at gmail.com
Wed Apr 21 07:12:44 PDT 2010


Hi, Nyx,

We were using viewer 1.23.4.  Interestingly, the official 1.23.4 viewer
binary release does not have this problem.  But after we compiled and
packaged the 1.23.4 source release, we saw this problem.  We didn't mix 2.0
at all.

Since this is related to compiling and packaging, could it be a particular
library that's referred to in the code?

Thanks!

~Chang


On Tue, Apr 20, 2010 at 5:42 PM, Nyx Linden <nyx at lindenlab.com> wrote:

> Chang Liu wrote:
>
>> Hi, all, when we connect a modified version of Second Life Client Viewer
>> to OpenSim, we notice that from time to time, textures on avatars may turn
>> into mosaic and hollow like what's shown in the attached screenshots.  Has
>> anyone seen this before?  Any clues as to what may have gone wrong? Many
>> thanks.
>>
>> ~Chang
>>
>>    What version of the viewer are you using? Viewer-1.23 redefined the
> fourth channel of baked textures to be "alpha mask" instead of "bump map".
> If you load old baked textures that generated a fourth channel intending it
> to be a bump map, and use it as a baked texture for a 1.23+ viewer, the
> viewer will incorrectly interpret the fourth channel as an alpha mask,
> resulting in images like you included in your email.
>
> Were the avatars on the sim a mix of 2.0 and 1.22 (or previous) versions by
> any chance?
>
> -Nyx
>
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