Curly

I want to grab a live video feed with jit.dx.grab and use it as a texture using jit.gl.texture. However, no image seems to go through to jit.gl.texture at all. 

However, when I use jit.qt.grab instead, the video works as a gl.texture.

But I would rather use jit.dx.grab, as I am working on a windows machine, and jit.gt.grab seems to be only willing to work on 1 of my 2 osprey capture cards.

Is there something I can do to make jit.dx.grab work on jit.gl.texture?

I am running Max 4.6.3 and Jitter 1.6.3 on a Windows XP machine.

I want to grab a live video feed with jit.dx.grab and use it as a texture using jit.gl.texture. However, no image seems to go through to jit.gl.texture at all. 
However, when I use jit.qt.grab instead, the video works as a gl.texture.

I am running Max 4.6.3 and Jitter 1.6.3 on a Windows XP machine.


jit-dx-grab-hates-jit-gl-texture

it should work, osprey works with my jit.dx.grab.

try the included capture program , if it works dx will work to.

On Tue, May 20, 2008 at 10:16 PM, Ed Purver wrote:

> I want to grab a live video feed with jit.dx.grab and use it as a texture

> using jit.gl.texture. However, no image seems to go through to

> However, when I use jit.qt.grab instead, the video works as a gl.texture.

> But I would rather use jit.dx.grab, as I am working on a windows machine,

> and jit.gt.grab seems to be only willing to work on 1 of my 2 osprey capture

> Is there something I can do to make jit.dx.grab work on jit.gl.texture?

> I am running Max 4.6.3 and Jitter 1.6.3 on a Windows XP machine.

it should work, osprey works with my jit.dx.grab.
try the included capture program , if it works dx will work to.
d/l drivers from site.

On Tue, May 20, 2008 at 10:16 PM, Ed Purver  wrote:

>
> I want to grab a live video feed with jit.dx.grab and use it as a texture
> using jit.gl.texture. However, no image seems to go through to
> jit.gl.texture at all.
> However, when I use jit.qt.grab instead, the video works as a gl.texture.
>
> But I would rather use jit.dx.grab, as I am working on a windows machine,
> and jit.gt.grab seems to be only willing to work on 1 of my 2 osprey capture
> cards.
>
> Is there something I can do to make jit.dx.grab work on jit.gl.texture?
>
> I am running Max 4.6.3 and Jitter 1.6.3 on a Windows XP machine.
>

however, my issue is that jit.gl.texture will not use that video as a 

texture when it is grabbed with jit.dx.grab. only when it is grabbed 

On May 20, 2008, at 3:49 PM, yair reshef wrote:

> it should work, osprey works with my jit.dx.grab.

> try the included capture program , if it works dx will work to.

> On Tue, May 20, 2008 at 10:16 PM, Ed Purver wrote:

> I want to grab a live video feed with jit.dx.grab and use it as a 

> texture using jit.gl.texture. However, no image seems to go through 

> However, when I use jit.qt.grab instead, the video works as a 

> But I would rather use jit.dx.grab, as I am working on a windows 

> machine, and jit.gt.grab seems to be only willing to work on 1 of 

> Is there something I can do to make jit.dx.grab work on 

however, my issue is that jit.gl.texture will not use that video as a  
texture when it is grabbed with jit.dx.grab.  only when it is grabbed  
with jit.qt.grab.

> it should work, osprey works with my jit.dx.grab.
> try the included capture program , if it works dx will work to.
> d/l drivers from site.
>
> On Tue, May 20, 2008 at 10:16 PM, Ed Purver  wrote:
>
> I want to grab a live video feed with jit.dx.grab and use it as a  
> texture using jit.gl.texture. However, no image seems to go through  
> to jit.gl.texture at all.
> However, when I use jit.qt.grab instead, the video works as a  
> gl.texture.
>
> But I would rather use jit.dx.grab, as I am working on a windows  
> machine, and jit.gt.grab seems to be only willing to work on 1 of  
> my 2 osprey capture cards.
>
> Is there something I can do to make jit.dx.grab work on  
> jit.gl.texture?
>
> I am running Max 4.6.3 and Jitter 1.6.3 on a Windows XP machine.
>


anything unusual when you run this patch?

On Tue, May 20, 2008 at 11:47 PM, Ed Purver wrote:

> osprey/dx.grab is able to grab the video

> however, my issue is that jit.gl.texture will not use that video as a

> texture when it is grabbed with jit.dx.grab. only when it is grabbed with

> On May 20, 2008, at 3:49 PM, yair reshef wrote:

>> try the included capture program , if it works dx will work to.

>> On Tue, May 20, 2008 at 10:16 PM, Ed Purver wrote:

>> I want to grab a live video feed with jit.dx.grab and use it as a texture

>> using jit.gl.texture. However, no image seems to go through to

>> However, when I use jit.qt.grab instead, the video works as a gl.texture.

>> But I would rather use jit.dx.grab, as I am working on a windows machine,

>> and jit.gt.grab seems to be only willing to work on 1 of my 2 osprey capture

>> Is there something I can do to make jit.dx.grab work on jit.gl.texture?

>> I am running Max 4.6.3 and Jitter 1.6.3 on a Windows XP machine.

On Tue, May 20, 2008 at 11:47 PM, Ed Purver  wrote:

> osprey/dx.grab is able to grab the video
>
> however, my issue is that jit.gl.texture will not use that video as a
> texture when it is grabbed with jit.dx.grab.  only when it is grabbed with
> jit.qt.grab.
>
> i'm wondering if anyone knows why?
>
>
> On May 20, 2008, at 3:49 PM, yair reshef wrote:
>
>  it should work, osprey works with my jit.dx.grab.
>> try the included capture program , if it works dx will work to.
>> d/l drivers from site.
>>
>> On Tue, May 20, 2008 at 10:16 PM, Ed Purver  wrote:
>>
>> I want to grab a live video feed with jit.dx.grab and use it as a texture
>> using jit.gl.texture. However, no image seems to go through to
>> jit.gl.texture at all.
>> However, when I use jit.qt.grab instead, the video works as a gl.texture.
>>
>> But I would rather use jit.dx.grab, as I am working on a windows machine,
>> and jit.gt.grab seems to be only willing to work on 1 of my 2 osprey capture
>> cards.
>>
>> Is there something I can do to make jit.dx.grab work on jit.gl.texture?
>>
>> I am running Max 4.6.3 and Jitter 1.6.3 on a Windows XP machine.
>>
>>
>
>

This is sounding like a patch issue to me. Try making the most simple patch you can involving jit.dx.grab and jit.gl.texture, and see if that works. Does it start working if you go directly to jit.gl.videoplane instead?

Let us know what you find, and post a simple patch demonstrating the issue if you get stuck.

Hi Curly,
This is sounding like a patch issue to me.  Try making the most simple patch you can involving jit.dx.grab and jit.gl.texture, and see if that works.  Does it start working if you go directly to jit.gl.videoplane instead?

You're right, Andrew, it is a patch issue. But I don't know why. I 

tried replicating the core of my issue: jit.dx.grab > jit.gl.texture 

> jit.gl.mesh in a more simple patch and that works fine.

I don't have any problems running the test patch that Yair posted.

I have no idea why it won't work in my bigger patch (too big to post, 

On May 20, 2008, at 6:12 PM, Andrew Benson wrote:

> This is sounding like a patch issue to me. Try making the most 

> simple patch you can involving jit.dx.grab and jit.gl.texture, and 

> see if that works. Does it start working if you go directly to 

> Let us know what you find, and post a simple patch demonstrating 

Thank you both for your responses.
You're right, Andrew, it is a patch issue. But I don't know why.  I  
tried replicating the core of my issue: jit.dx.grab > jit.gl.texture  
 > jit.gl.mesh  in a more simple patch and that works fine.
I don't have any problems running the test patch that Yair posted.
I have no idea why it won't work in my bigger patch (too big to post,  
I fear).

>
> Hi Curly,
> This is sounding like a patch issue to me.  Try making the most  
> simple patch you can involving jit.dx.grab and jit.gl.texture, and  
> see if that works.  Does it start working if you go directly to  
> jit.gl.videoplane instead?
>
> Let us know what you find, and post a simple patch demonstrating  
> the issue if you get stuck.
>
> Best,
> Andrew B.
>
>


Sounds like you might be losing the alpha channel.

I know that I just replace the alpha channel from jit.dx.grab with an all "white" plane, so I'm not dealing with differences between capture methods. I seem to remember one of my capture devices produced alpha and another didn't at some point, so I just went this route.

Sounds like you might be losing the alpha channel.
I know that I just replace the alpha channel from jit.dx.grab with an all "white" plane, so I'm not dealing with differences between capture methods.  I seem to remember one of my capture devices produced alpha and another didn't at some point, so I just went this route.


hey leo, I owe you a big thank you. That's exactly what the problem 

is. Stupidly I didn't notice that when I ran Yair's test patch. And 

I guess it was working on other tests I did because the gl.videoplane 

or gl.mesh had the blend_enable set to 0, whereas in my problem 

On May 20, 2008, at 11:21 PM, Leo Mayberry wrote:

> Sounds like you might be losing the alpha channel.

> I know that I just replace the alpha channel from jit.dx.grab with 

> an all "white" plane, so I'm not dealing with differences between 

> capture methods. I seem to remember one of my capture devices 

> produced alpha and another didn't at some point, so I just went 

hey leo, I owe you a big thank you. That's exactly what the problem  
is.  Stupidly I didn't notice that when I ran Yair's test patch. And  
I guess it was working on other tests I did because the gl.videoplane  
or gl.mesh had the blend_enable set to 0, whereas in my problem  
patch, it is set to 1.

>
> Sounds like you might be losing the alpha channel.
> I know that I just replace the alpha channel from jit.dx.grab with  
> an all "white" plane, so I'm not dealing with differences between  
> capture methods.  I seem to remember one of my capture devices  
> produced alpha and another didn't at some point, so I just went  
> this route.
>
>


jit.dx.grab hates jit.gl.texture?