opengl, filter problem

Core Library Questions

adamtoth

in Core Library Questions • 2 years ago

i have a problem with this code, if i run it with P2D or P3D everything cool but when i test it with OPENGL the rectangle doesn't appear. could somebody please help?

import processing.opengl.*;

import processing.opengl.*;
void setup(){
size(400,400,OPENGL);
smooth();
background(255);
}
void draw(){
fill(100);
ellipseMode(CENTER);
ellipse(200,200,100,100);
filter(BLUR, 6);
fill(0);
rect(300,300,60,60);
noLoop();
}

Replies(2)

nardove

Re: opengl, filter problem

2 years ago

I never use the filter method before, but checking at the reference looks like this method needs to be apply to a PImage object, you can do it by rendering to a PGraphics object like this:

import processing.opengl.*;
PGraphics pg;
int pgSizeW = 100;
int pgSizeH = 100;
void setup(){
size(400,400,OPENGL);
smooth();
background(255);
noStroke();
pg = createGraphics(pgSizeW*2, pgSizeH*2, P3D);
}
void draw(){
pg.beginDraw();
pg.background(255);
pg.fill(100);
pg.ellipseMode(CENTER);
pg.ellipse( pgSizeW, pgSizeH, pgSizeW, pgSizeH );
pg.endDraw();
pg.filter(BLUR, 6);
image(pg, 50, 50);
fill(20);
rect(300,300,60,60);
noLoop();
}

adamtoth

Re: opengl, filter problem

2 years ago

thank you!

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opengl, filter problem

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