[GEM-dev] Ressources when alpha canal of [colorRGB] is 0
Jack
jack at rybn.org
Fri Apr 4 18:42:39 CEST 2008
Thanx Chris, it was what I thought.
It would be interresting if the gemhead turn off when the alpha
channel is 0 or not (and why) ?
++
Jack
Le 4 avr. 08 à 18:32, chris clepper a écrit :
> No. In the alpha chain the geometry is still computed only the
> pixels are not drawn in the back buffer. Also, the gemhead has
> some overhead for setting up the various states and matrices.
> Turning off the gemhead bypasses everything in the chain.
>
> On Fri, Apr 4, 2008 at 11:20 AM, Jack <jack at rybn.org> wrote:
> Is it the same when the alpha canal of a [colorRGB] is 0 than when
> [gemhead] has received the message 0 :
>
> [gemhead]
> |
> [alpha]
> |
> [colorRGB 1 1 1 0]
> |
> [square]
>
>
> is it the same for the ressources take from the CPU/GPU than :
>
>
> [loadbang]
> |
> |0(
> |
> [gemhead]
> |
> [square]
>
> (The both methods erase the square).
>
> Thanx.
> ++
>
> Jack
>
> _______________________________________________
> GEM-dev mailing list
> GEM-dev at iem.at
> http://lists.puredata.info/listinfo/gem-dev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puredata.info/pipermail/gem-dev/attachments/20080404/78f8032d/attachment.htm>
More information about the GEM-dev
mailing list