I can't get success using alpha channel in gl.sketch. "Color 1. 0. 0. 

0.2" is the same as "color 1. 0. 0. 1.", even in the jit.gl.sketch.help 

f.e chanfrault | aka | personal computer music

>>>>>>> | film soundtracks, sound art, music |

I can't get success using alpha channel in gl.sketch. "Color 1. 0. 0. 
0.2" is the same as "color 1. 0. 0. 1.", even in the jit.gl.sketch.help 
file...

-- 
f.e chanfrault | aka | personal computer music
 >>>>>>> http://www.personal-computer-music.com
 >>>>>>> | film soundtracks, sound art, music |


alpha-channel-in-gl-sketch

sketch is reletivlly low level, you my have an easier time with a gridshape,

reset , glenable blend , glcolor 1. 0. 0. $1 , cube 0.2

will give you alpha to sketch, watch the cmdlist with getcmdlist to see

> I can't get success using alpha channel in gl.sketch. "Color 1. 0. 0. 0.2"

> is the same as "color 1. 0. 0. 1.", even in the jit.gl.sketch.help file...

> f.e chanfrault | aka | personal computer music

> >>>>>>> | film soundtracks, sound art, music |

sketch is reletivlly low level, you my have an easier time with a gridshape,
this
reset , glenable blend , glcolor 1. 0. 0. $1 , cube 0.2
will give you alpha to sketch, watch the cmdlist with getcmdlist to see
whats going on in sketch

On Sun, May 25, 2008 at 4:04 PM, f.e 
wrote:

> I can't get success using alpha channel in gl.sketch. "Color 1. 0. 0. 0.2"
> is the same as "color 1. 0. 0. 1.", even in the jit.gl.sketch.help file...
>
> Is there an option to turn it on ?
>
> Thanks in advance
>
> f.e
>
> --
> f.e chanfrault | aka | personal computer music
> >>>>>>> http://www.personal-computer-music.com
> >>>>>>> | film soundtracks, sound art, music |
>

make sure you have blend_enabled set to 1 in gl.render

On Sun, May 25, 2008 at 3:04 PM, f.e wrote:

>>>>>>>> | film soundtracks, sound art, music |

On Sun, May 25, 2008 at 3:04 PM, f.e  wrote:
> I can't get success using alpha channel in gl.sketch. "Color 1. 0. 0. 0.2"
> is the same as "color 1. 0. 0. 1.", even in the jit.gl.sketch.help file...
>
> Is there an option to turn it on ?
>
> Thanks in advance
>
> f.e
>
> --
> f.e chanfrault | aka | personal computer music
>>>>>>>> http://www.personal-computer-music.com
>>>>>>>> | film soundtracks, sound art, music |
>


the glcolor's alpha-value has to be set to something else than 1., too.

> I'm sending "reset, glclearcolor 1. 1. 1. 1., glclear, glenable 

> blend, moveto 0. 0., glcolor 0.5 0.7 0.8 1., circle 0.1" to 

> jit.gl.sketch but still no alpha channel...

> I'm sending "reset, glclearcolor 1. 1. 1. 1., glclear, glenable  
> blend, moveto 0. 0., glcolor 0.5 0.7 0.8 1., circle 0.1" to  
> jit.gl.sketch but still no alpha channel...

For this approach you will need to select the blend mode you want and

> Thanks, Yair. I'm sending "reset, glclearcolor 1. 1. 1. 1., glclear,

> glenable blend, moveto 0. 0., glcolor 0.5 0.7 0.8 1., circle 0.1" to

> Is there something i have to do with the jit.gl.render and / or the

For this approach you will need to select the blend mode you want and
include it in the command list:...
glenable blend;
glblendfunc  ;(for example 6 1)
circle 0.1;
...

On Sun, May 25, 2008 at 3:44 PM, f.e 
wrote:

> Thanks, Yair. I'm sending "reset, glclearcolor 1. 1. 1. 1., glclear,
> glenable blend, moveto 0. 0., glcolor 0.5 0.7 0.8 1., circle 0.1" to
> jit.gl.sketch but still no alpha channel...
>
> Is there something i have to do with the jit.gl.render and / or the
> jit.pwindow too ?
>
> Best
>
> f.e
>

On Mon, May 26, 2008 at 8:31 PM, pelado wrote:

> For this approach you will need to select the blend mode you want and

>> Thanks, Yair. I'm sending "reset, glclearcolor 1. 1. 1. 1., glclear,

>> glenable blend, moveto 0. 0., glcolor 0.5 0.7 0.8 1., circle 0.1" to

>> jit.gl.sketch but still no alpha channel...

>> Is there something i have to do with the jit.gl.render and / or the

On Mon, May 26, 2008 at 8:31 PM, pelado  wrote:

> For this approach you will need to select the blend mode you want and
> include it in the command list:...
> glenable blend;
> glblendfunc  ;(for example 6 1)
> circle 0.1;
> ...
>
> pelado
>
>
> On Sun, May 25, 2008 at 3:44 PM, f.e 
> wrote:
>
>> Thanks, Yair. I'm sending "reset, glclearcolor 1. 1. 1. 1., glclear,
>> glenable blend, moveto 0. 0., glcolor 0.5 0.7 0.8 1., circle 0.1" to
>> jit.gl.sketch but still no alpha channel...
>>
>> Is there something i have to do with the jit.gl.render and / or the
>> jit.pwindow too ?
>>
>> Best
>>
>> f.e
>>
>
>
>
>

Alpha channel in gl.sketch