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Index › Programming Questions & Help › Programs › Access to pixels in P3D

toastie YaBB Newbies Offline Posts: 29	Access to pixels in P3D Jun 30th, 2005, 8:58pm   How can I access the pixels of the screen in P3D mode to do post processing on the 3d image? (If that's possible)

JohnG Ex Member

Re: Access to pixels in P3D Reply #1 - Jul 3rd, 2005, 3:58pm   There's 2 ways to access the pixels, 1: Code: void draw() { <do your normal stuff> x=width/2; y=height/2; color c=get(x,y); set(x,y,color(255,0,0)); } It's also fairly simple to directly access the pixels, 2: Code: void draw() { <do your normal stuff> loadPixels(); x=width/2; y=width/2; pixels[x+y*width]=color(255,0,0); updatePixels(); } These example will set the middle pixel to red.. you can access any on screen pixel with get(x,y) or pixels[x + ( y*width )] both for reading and writing. get/set are slower than pixels[] but slightly easier to start with.