Rotating the whole sketch

Programming Questions

radiodario

in Programming Questions • 2 years ago

Hi, i'm having trouble displaying a sketch on a vertical display (resolution 1080 x 1920). I'm getting framerate dips every so often but i don't get them if I setup the sketch to 1920 x 1080. I suppose there's some bug with vertical screens. To sort it out, I want to setup the screen to have 1920 x 1080 resolution and then rotating the whole sketch -HALF_PI. However, if I do this on the draw() method, i don't see anything. Any ideas?

Cheers

Dario

Replies(3)

tfguy44

Re: Rotating the whole sketch

2 years ago

// Maybe rotate by HALF_PI, then translate(0,-width), like so:

boolean swap = true;

void setup(){

if(swap){

size(200,300);

}

else {

size(300,200);

}

void draw(){

if(swap){

rotate(HALF_PI);

translate(0,-width);

}

background(0);

noStroke();

fill(0,255,0);

rect(10, 10, 280, 180);

fill(0,0,255);

ellipse(30,30,20,20);

}

radiodario

Re: Re: Rotating the whole sketch

2 years ago

Cheers man, that worked. I was forgetting to translate the sketch!

However, the framerate is significantly reduced...

amnon.owed

Re: Rotating the whole sketch

2 years ago

Don't know exactly why the framerate reduces as a result of rotation and translation, but you could try to draw to a pgraphic and only rotate and translate that image instead. It would interesting to see if this helps combat the framerate reduction.

boolean swap = true;
PGraphics pg;
void setup() {
if (swap) { size(200, 300); }
else { size(300, 200); }
pg = createGraphics(300,200,JAVA2D);
}
void draw() {
drawStuff();
if (swap) {
rotate(HALF_PI);
translate(0, -width);
}
image(pg,0,0);
}
void drawStuff() {
pg.beginDraw();
pg.background(0);
pg.noStroke();
pg.fill(0, 255, 0);
pg.rect(10, 10, 280, 180);
pg.fill(0, 0, 255);
pg.ellipse(30, 30, 20, 20);
pg.endDraw();
}