[PD] pix_record mixed pixes

[vincent Rioux]

thanks IOhannes for being patient.
well, i am still a bit unsure. do you mean that the stuff i described 
below canNOT be recorded at all within puredata? i.e. do i have to make 
a recording using the ouput of the graphic card?

i am now trying to record a single rectangle moving over the Gem window.
do i have to use pix_snap synchronized with pix_record to take a 
sequence of snapshots? (i only get a green video output).

vincent

IOhannes m zmoelnig a écrit :
> vincent Rioux wrote:
>   
>>>>     
>>>>         
>>> i am not sure whether i fully understand what you mean.
>>>   
>>>       
>> i agree with you, my description is not crystal clear.
>> imagine that there is a video in the background (fullscreen).
>> progressively some small recatngular parts of the video are transformed
>> (for example gets darker) and move - in order to do that i apply another
>> gem layer on top of the video layer and insert several rectangles
>> objects with alpha channel.
>>     
>
> thanks.
> what you describe canNOT be recorded directly with [pix_record] (you
> already know that).
>
>   
>>> [pix_record] will _only_ record pixes. (e.g. you have to transform your
>>> "rectangles" into pix-domain; just using [rectangle] won't do)
>>>   
>>>       
>> ok, how do one make this kind of transformation?
>>     
>
> [pix_snap] transforms the rendering buffer (what has been rendered so
> far in the render-cycle!) into a pix-buffer.
>
>   
>>> e.g.
>>>
>>> [pix_video]
>>> |
>>> [pix_gain]
>>> |
>>> [pix_record]
>>> |
>>> [pix_invert]
>>>
>>> will record a video with [pix_gain] applied, but [pix_invert] is NOT
>>> applied.
>>>   
>>>       
>> ok, i think i got this one but what about pix_mix?
>>     
>
> [pix_mix] is harder to draw in ascii. apart from that you shoud insert
> it instead of [pix_gain] to have an effect.
>
> mfg.adsr
> IOhannes
>
>