[Bug 111241] Shadertoy shader causing hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111241

--- Comment #12 from Dieter Nützel <Dieter at nuetzel-hh.de> ---
(In reply to Pierre-Eric Pelloux-Prayer from comment #11)
> (In reply to Dieter Nützel from comment #8)
> > BTW
> > 
> > Pierre-Eric can you look into this
> > 
> > Shadertoy shader corruption, too?
> > https://www.shadertoy.com/view/Xt3cWS
> >
> 
> The "Buffer A" shader doesn't write fragColor when uv.y is < 0.1 or > 0.9.
> 
> So the content is undefined and may be black on some platform or random.
> 
> radeonsi is correct here, but we might want to replace undef values with 0x0
> to get a default value instead of random.

Cool to have you around for bug hunting...;-)

Any hints where I shoud change 'undef values with 0x0' for testing?

And sorry that I 'hijacked' this thread - should I open a new ticket?

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