dani

I am trying to subtract the white color of drawings to be able to blend them, but I am confused. Is it possible to attribute that to each individual one, without having to fade one with another one? I mean, I want to do that individually to each one, maintaining the rest of the colors.

I am trying to do that with the video plane, but that blends the whole image. (As far as I know... I am a total Jitter beginner) and all the others objects such as the alpha blend, etc, rely on a second image or jitqt movie to do that.

any ideas of the object (s) that might feet in here?

 I am trying to subtract the white color of drawings to be able to blend them, but I am confused. Is it possible to attribute that to each individual one, without having to fade one with another one? I mean, I want to do that individually to each one, maintaining the rest of the colors.
 I am trying to do that with the video plane, but that blends the whole image. (As far as I know... I am a total Jitter beginner) and all the others objects such as the alpha blend, etc, rely on a second image or jitqt movie to do that.

individual-white-subtraction

Use jit.chromakey with a target color of white (and probblay a small 

tolerance and xfade amount) to generate an alpha channel for your 

movie. If you're not familiar with chromakeying or alpha channels, 

I'd suggest researching online and running through the Jitter 

If you like you could use the chromakey shader on the GPU to this end.

Use jit.chromakey with a target color of white (and probblay a small  
tolerance and xfade amount) to generate an alpha channel for your  
movie. If you're not familiar with chromakeying or alpha channels,  
I'd suggest researching online and running through the Jitter  
tutorials on the subject.

Thanks for your respond. but I think that I am not making myself

clear� and because I am total beginner, and it takes me a long them

to understand the shader, video planes.. etc,... I want to make sure

I have a red outline on a white background� so in that case there is

no a problem because it is just one image. But when I another image

is read, for example.. it appears on top of that image, let's say a

blue outline on a white background� that image is covering the first

I want the colors to merge, meaning, I want to see outlines, the blue

and the red �one on top of the other�. With no white colors

interfering� (Just the matrix background)

So what I aiming for and because of the way each sub patch of my image

works, I would like to load the image to read only the outline,

forgetting about the image's white background�

The alpha channel and the chromakey is great, but it requires of a

second image inside the subpatch to blend it with�

I am sorry if I am not making sense, �I do not know how else to explain this�

Hello Joshua
 Thanks for your respond.  but I think that I am not making myself
clear� and because I am total beginner, and  it takes me a long them
to understand the shader, video planes.. etc,... I want to make sure
that I am in the right direction �.

 I have a red outline on a white background� so in that case there is
no a problem because it is just one image. But when I  another image
is read, for example.. it appears on top of that image, let's say a
blue outline on a white background� that image is covering the first
one.

 I want the colors to merge, meaning, I want to see outlines, the blue
and the red �one on top of the other�. With no white colors
interfering� (Just the matrix background)

So what I aiming for and because of the way each sub patch of my image
works, I would like to load the image to read only the outline,
forgetting about the image's white background�

 The alpha channel and the chromakey is great, but it requires of a
second image inside the subpatch to blend it with�

 I am sorry if I am not making sense, �I do not know how else to explain this�
Thanks
Daniela


This can be handled by using mode 2 of jit.chromakey to generate an 

This can be handled by using mode 2 of jit.chromakey to generate an 
alpha channel for blending.

I tried without the gl.render and it works only using the example pat... but when I apply it to my patch it does not work.. So I finally decided to use the gl.render stuff and

I changed my matrix to a float 32. I get how to send the gl.render to the matrix... but it still does not work!!.. Maybe I am having problems with the color values now that I am working with gl render... If you tell me what to read I will...

Here is the sub patch and also I attached the example patch that I was basing my work from. . Because maybe I do not need the gl render stuff? knowing that I could have much more visual effects using the different video planes? but for then moment I just want to see my outlines images without the white!

here is the individual sup patch and In attached images..

Hello 
I still cannot do it....
 I do not get it...
 I tried without the gl.render and it works only using the example pat... but when I apply it to my patch it does not work.. So I finally decided to use the gl.render stuff and
 I changed my matrix to a float 32. I get how to send the gl.render to the matrix... but it still does not work!!.. Maybe I am having problems with the color values now that I am working with gl render... If you tell me what to read I will...

 Here is the sub patch and also I attached the example patch that I was basing my work  from. . Because maybe I do not need the gl render stuff? knowing that I could have much more visual effects using the different  video planes? but for then moment I just want to see my outlines images without the white!

here is the individual sup patch and In attached images..
 after is the example patch
thanks,
Daniela

Several things you are doing improperly here. It seems like you need 

to spend a little bit more time learning the fundamentals before 

1. I'm not sure why you have the matrix output of jit.chromakey 

connected to jit.gl.render. This is converting the image to geometry 

(and improperly so if that is what you would be trying to achieve). 

Also your arguments to "jit.matrix big_composite float 32 @usedstdim 

2. you don't have proper spaces in your jit.gl.videoplane arguments. 

this is *important*. "jit.gl.videoplane Stamping @blend_enable 

1@depth_disabled @matrixoutput1" should be "jit.gl.videoplane 

Stamping @blend_enable 1 @depth_enable 0" (note that there must be a 

space between the 1 and the @ symbol, depth_diabled is not an 

attribute, and you shouldn't be using matrix output for this putpose)

Hope this helps. Please take some time to walk through the tutorials 

carefully. I think you'll find this easier once you have done so.

Several things you are doing improperly here. It seems like you need  
to spend a little bit more time learning the fundamentals before  
approaching this task.

1. I'm not sure why you have the matrix output of jit.chromakey  
connected to jit.gl.render. This is converting the image to geometry  
(and improperly so if that is what you would be trying to achieve).  
Also your arguments to "jit.matrix big_composite float 32 @usedstdim  
1" do not make sense. they should be     
. You have an incorrect type (must be  
float32 *no space*), and no dimensions.

2. you don't have proper spaces in your jit.gl.videoplane arguments.  
this is *important*. "jit.gl.videoplane Stamping @blend_enable  
1@depth_disabled @matrixoutput1" should be "jit.gl.videoplane  
Stamping @blend_enable 1 @depth_enable 0" (note that there must be a  
space between the 1 and the @ symbol, depth_diabled is not an  
attribute, and you shouldn't be using matrix output for this putpose)

Hope this helps. Please take some time to walk through the tutorials  
carefully. I think you'll find this easier once you have done so.

And also looking at all the render examples patches have been a

revelation to me! I think that know that things are starting to be in

place the blending etc should become an easier task...

Hi Joshua Thanks.  It did help.
   And also looking at all the render examples patches have been a
revelation to me! I think that know that things are starting to be in
place the blending etc should become an easier task...
Daniela


I do not understand if you can send send render message from my 6

sub patches to one jit.slab to read the chromakey shader and then to

one video plane stamping to render the whole movie. Because I still

cannot achieve any blending to work and if I do not have the blending

I cannot do any effects because I do not see how the images blends..?

I want to make an organize patch? and be economical?. But it is not

Or should I treat each subpatch individually and have 6 simultaneous

Also is this correct? I do not get any error message? and it does not work..

 I do not understand if you can send  send render message from my 6
sub patches to one jit.slab to read the chromakey shader and then to
one video plane stamping to render the whole movie. Because I still
cannot achieve any blending to work and if I do not have the blending
I cannot do any effects because I do not see how the images blends..?
I want to make an organize patch? and be economical?. But it is not
working?

 Or should I treat each subpatch individually and have 6 simultaneous
rendered video planes?

 Also is this correct? I do not get any error message? and it does not work..

individual white subtraction