[GEM-dev] gem cvs alpha-depth bug?

[ben at ekran.org]

I'm actually very fond of z-buffering

could we "fix" lighting so that it works as expected with depth-buffering on?

Ben


> On Fri, 28 Nov 2003 ben at ekran.org wrote:
>> hey all,
>>
>> I just updated my gem cvs again today.
>>
>> I've noticed an odd bug with alpha (again). this time the alpha object
>> seems to turn on depth buffering when its in the chain!
>
> Ooops, obviously my fault.
> I have changed default behaviour of alpha to the one it was in 0.87.
> Damn, I really forgot about that, ...
>
> It is not really a bug, but a feature that lets you use alpha blending
> independent from position, but the default behaviour should of course
> stay the same. Sorry ..
>
> Guenter
>
>>
>> I'm using lighting (because lighting tends to get messed up when using
>> "depth" to show the effect. without a depth object in a chain, the
>> cube looks identical to its depth counterpart, as long as the alpha
>> object is in the chain. If I turn off the alpha object it works fine.
>> (looks as it does without using depth.
>>
>> Here is an example patch.
>>
>> Ben
>>
>>
>
>
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