We closed this forum 18 June 2010. It has served us well since 2005 as the ALPHA forum did before it from 2002 to 2005. New discussions are ongoing at the new URL http://forum.processing.org. You'll need to sign up and get a new user account. We're sorry about that inconvenience, but we think it's better in the long run. The content on this forum will remain online.
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1
filter() in PGraphicsGL (Read 2751 times)
Ricard
filter() in PGraphicsGL
May 9th, 2005, 12:50pm  
Just an idea for the filter() function in the OpenGL library.  Would it be possible to change the way the OpenGL library handles the filter method in order to use more gl functions which may increase performance (not sure about this).  For example using:
glConvolutionFilter2D()+glPixelTransferf()+glCopyPixels()

instead of:

filter() (processing.core method)

can't wait to have some time and try out all these ideas so that I bugYouLess!
Back to top
 
WWW  
fry
Re: filter() in PGraphicsGL
Reply #1 - May 9th, 2005, 3:25pm  
it would likely work, just haven't had the time to do it. in general, i've been trying just to get things to work properly first before i deal with optimizing them. since there are still so many basic things broken (set() with images in opengl, some of the updatePixels() stuff with gl), there's no sense in me optimizing the filters.
Back to top
 
WWW  
Ricard
Re: filter() in PGraphicsGL
Reply #2 - May 9th, 2005, 5:17pm  
very understandable!

a little question about the loadPixels() and updatePixels() methods: are they supposed to stay in the API, or will they be removed if we find out a way to avoid the need of them in JAVA2D and OPENGL?
Back to top
 
WWW  
fry
Re: filter() in PGraphicsGL
Reply #3 - May 9th, 2005, 5:40pm  
they'll remain because there's no way to get around them. and they should be used whenever you mess with pixels (even if they don't seem "needed" in some cases), just to get yourself used to it.
Back to top
 
WWW  
Page Index Toggle Pages: 1
‹ Previous Topic | Next Topic ›