mbiederman

playing around with jit.gl.imageunit to see if i can adapt a few things for a videosynth I have been using...

is there a way to send low resolution matrix data into jit.gl.imageunit without any interpolation? see the attached patch.

I am aiming for sharp low resolution images if possible. maybe I have to go in and edit or recode the imageunit files themselves?

so the question is:
is there a way to send low resolution matrix data into jit.gl.imageunit without any interpolation?  see the attached patch.

I am aiming for sharp low resolution images if possible.  maybe I have to go in and edit or recode the imageunit files themselves?

thanks in advance,
matthew
www.mbiederman.com

low-res-imagunit-processing

On Jan 21, 2007, at 10:36 AM, mbiederman wrote:

> is there a way to send low resolution matrix data into 

> jit.gl.imageunit without any interpolation? see the attached patch.

> I am aiming for sharp low resolution images if possible. maybe I 

> have to go in and edit or recode the imageunit files themselves?

The issue is that the default internal texture for jit.gl.imageunit 

is the only one that the interp message affects (which is only used 

if the input is a jit.matrix rather than a jit.gl.texture object). 

The output texture of jit.gl.imageunit accepts all the messages as 

jit.gl.texture via the sendoutput message. So you can achieve the 

results you want with "sendoutput filter nearest" to 

jit.gl.imageunit, or send through an instance of jit.gl.texture 

@filter nearest, in order achieve nearest neighbor sampling.

> so the question is:
> is there a way to send low resolution matrix data into  
> jit.gl.imageunit without any interpolation?  see the attached patch.
> I am aiming for sharp low resolution images if possible.  maybe I  
> have to go in and edit or recode the imageunit files themselves?

The issue is that the default internal texture for jit.gl.imageunit  
is the only one that the interp message affects (which is only used  
if the input is a jit.matrix rather than a jit.gl.texture object).  
The output texture of jit.gl.imageunit accepts all the messages as  
jit.gl.texture via the sendoutput message. So you can achieve the  
results you want with "sendoutput filter nearest" to  
jit.gl.imageunit, or send through an instance of jit.gl.texture  
@filter nearest, in order achieve nearest neighbor sampling.

low res imagunit processing