# PGraphics behaving unexpectedly
**URL:** https://discourse.processing.org/t/pgraphics-behaving-unexpectedly/18710
**Category:** Processing
**Created:** [March 16, 2020, 6:39pm UTC](https://discourse.processing.org/t/pgraphics-behaving-unexpectedly/18710 "2020-03-16T18:39:03Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@hamoid](https://discourse.processing.org/u/hamoid)
#### Post date: [March 16, 2020, 6:39pm UTC](https://discourse.processing.org/t/pgraphics-behaving-unexpectedly/18710/1 "2020-03-16T18:39:04Z")
Hi there,
This is no longer behaving as it used to. If I’m not too sleepy, this program should draw a black screen, but I see it magenta. If inside `draw()` I remove everything except `image(...)` then it’s black.
```auto
PGraphics pg;
void setup() {
size(800, 800, P2D);
background(255, 0, 255);
pg = createGraphics(1000, 1000, P3D);
pg.beginDraw();
pg.background(0);
pg.endDraw();
}
void draw() {
pg.beginDraw();
//pg.stroke(random(10));
//pg.blendMode(ADD);
//pg.line(0, random(height), width, random(height));
pg.endDraw();
image(pg, 0, 0);
}
```
I also tried this but same magenta result:
```auto
PGraphics pg;
void setup() {
size(800, 800, P2D);
background(255, 0, 255);
}
void draw() {
if (pg == null) {
pg = createGraphics(1000, 1000, P3D);
pg.beginDraw();
pg.background(0);
pg.endDraw();
}
pg.beginDraw();
//pg.stroke(random(10));
//pg.blendMode(ADD);
//pg.line(0, random(height), width, random(height));
pg.endDraw();
image(pg, 0, 0);
}
```
Maybe someone could try this program to see if the issue is my OS? On Processing 3.5.4.
---
### Author:  [@hamoid](https://discourse.processing.org/u/hamoid)
#### Post date: [March 16, 2020, 6:52pm UTC](https://discourse.processing.org/t/pgraphics-behaving-unexpectedly/18710/2 "2020-03-16T18:52:08Z")
Found an ugly workaround. I’m sad that old programs just stop working.
```auto
PGraphics pg;
void setup() {
size(800, 800, P2D);
background(255, 0, 255);
pg = createGraphics(1000, 1000, P3D);
}
void draw() {
pg.beginDraw();
if (frameCount == 2) {
pg.background(200, 100, 50);
}
pg.stroke(random(10));
pg.blendMode(ADD);
pg.line(0, random(height), width, random(height));
pg.blendMode(SUBTRACT);
pg.line(random(pg.width), 0, random(pg.width), pg.height);
pg.endDraw();
image(pg, 0, 0);
}
```
Screenshot with `if(frameCount == 1)` (PGraphics is transparent):
Screenshot with `if(frameCount == 2)` (PGraphics is opaque):
ps. I planned uploading one sketch per day from my collection, so here goes the first one:
> **[hamoid/Fun-Programming](https://github.com/hamoid/Fun-Programming/tree/master/processing/ideas/2018/08/panZoomSketch)**
>
> Code from the Fun Programming video episodes about creative coding, and my own random sketches - hamoid/Fun-Programming
---
### Author:  [@noel](https://discourse.processing.org/u/noel)
#### Post date: [March 16, 2020, 7:27pm UTC](https://discourse.processing.org/t/pgraphics-behaving-unexpectedly/18710/3 "2020-03-16T19:27:53Z")
> [@hamoid](#):
>
> Maybe someone could try this program to see if the issue is my OS? On Processing 3.5.4
Confirmed. Same thing here. The way until then will be
> pg.fill(0); pg.rect(0,0,width,height);
---
### Author:  [@hamoid](https://discourse.processing.org/u/hamoid)
#### Post date: [March 16, 2020, 8:03pm UTC](https://discourse.processing.org/t/pgraphics-behaving-unexpectedly/18710/4 "2020-03-16T20:03:55Z")
I tried the approach you suggest but doesn’t work for me. The background is still transparent.
---
### Author:  [@noel](https://discourse.processing.org/u/noel)
#### Post date: [March 16, 2020, 8:54pm UTC](https://discourse.processing.org/t/pgraphics-behaving-unexpectedly/18710/5 "2020-03-16T20:54:15Z")
> [@hamoid](#):
>
> doesn’t work for me
True, sorry. I forgot that I changed PGraphics from P3D to default at the same time…
---
### Author:  [@noel](https://discourse.processing.org/u/noel)
#### Post date: [March 16, 2020, 9:20pm UTC](https://discourse.processing.org/t/pgraphics-behaving-unexpectedly/18710/6 "2020-03-16T21:20:36Z")
> [@hamoid](#):
>
> so here goes the first one:
Very nice!
Interesting that if you put the class in the first tab, you get a size error. Setup() has to be in the first tab.
---
### Author:  [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)
#### Post date: [March 25, 2020, 1:02am UTC](https://discourse.processing.org/t/pgraphics-behaving-unexpectedly/18710/7 "2020-03-25T01:02:14Z")
@hamoid On 3.4 (MacOS) I can confirm that your top post sketches 1 and 2 both show magenta for a single frame, then show blank from then on. So something changed since 3.4.
Have you opened an issue?
- [https://github.com/processing/processing/issues](https://github.com/processing/processing/issues)