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Index › Programming Questions & Help › OpenGL and 3D Libraries › Status of pixel functions in OPENGL
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Status of pixel functions in OPENGL (Read 424 times)
alias
Status of pixel functions in OPENGL
Jan 8th, 2008, 9:01pm  
Hi guys,

I'm trying to do some precomputed textures for some opengl stuff, however I'm having trouble as I'm running into the various bugs with pixel operations in opengl, as detailed here:
http://dev.processing.org/bugs/show_bug.cgi?id=91

and

here:
http://dev.processing.org/bugs/show_bug.cgi?id=274

Both bugs seem to be marked as resolved in release 0127, but I'm on 134 and it's still happening. Should I push to get these reopened?

In the meantime - is it possible to switch out of opengl and back in again? Because if I could switch the regular renderer on, do my textures, then switch to opengl, that would be fine as a workaround.

Any help much appreciated,
Alias
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extrapixel
Re: Status of pixel functions in OPENGL
Reply #1 - Jan 8th, 2008, 11:45pm  
hi, you can create additional renderers using createGraphics()
http://processing.org/reference/PGraphics.html

Quote:

import processing.opengl.*;

PGraphics pg;
float inc = 0.0;

void setup() {
 size(200, 200, OPENGL);
 pg = createGraphics(width, height, JAVA2D);
}

void draw() {
 pg.beginDraw();
 pg.background(102);
 pg.stroke(255);
 pg.strokeWeight(2);
 pg.line(100, 100, mouseX, mouseY);
 pg.endDraw();
 
 background(255);
 translate(width/2, height/2);
 inc+=.01;
 rotateY(inc);
 image(pg, -40, -40, 80,80);
}
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alias
Re: Status of pixel functions in OPENGL
Reply #2 - Jan 9th, 2008, 10:36am  
That's great, thanks!
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