在同一处理草图中使用 Box2D 和视频时出现问题

Question

我尝试同时使用Box2D处理和视频库创建草图。
我有一些盒子在移动并相互碰撞，我想用一些视频来制作这些盒子的纹理。
但是，一旦我输入代码行以告诉处理我要使用的视频文件，我就会收到一条很长的错误消息。

import processing.video.*;
import shiffman.box2d.*;
import org.jbox2d.collision.shapes.*;
import org.jbox2d.common.*;
import org.jbox2d.dynamics.*;

Box2DProcessing box2d;
int no_boxes = 7;
//All of our boxes
Box[] boxes = new Box[no_boxes];
//Boundry sides
Boundry[] boundry = new Boundry[4];
float angle = -PI/2;
float grav_rad = 30;
float boundr = 260;
float boundw = 30;
PVector direction = new PVector();
Movie mouth;

void setup() {
size(800,800,P3D);
frameRate(60);
colorMode(HSB,360,100,100);
noStroke();
//Load the movie
mouth = new Movie(this,"mouth1.mov");
mouth.play();
// Initialize box2d physics and create the world
box2d = new Box2DProcessing(this);
box2d.createWorld();
//Create the boxes
for (int n=0;n<no_boxes; n++) {
boxes[n] = new Box(random(200,600), random (200,600));
}
//Create the boundries
boundry[0] = new Boundry(400+boundr,400,boundw,2*boundr+boundw);
boundry[1] = new Boundry(400-boundr,400,boundw,2*boundr+boundw);
boundry[2] = new Boundry(400,400+boundr,2*boundr+boundw, boundw);
boundry[3] = new Boundry(400,400-boundr,2*boundr+boundw, boundw);

}
void movieEvent (Movie m) {
m.read();
}

void draw() {
background(200,50,80);
image(mouth,0,0);
angle+= radians(0.3);
direction.x = grav_rad*cos(angle);
direction.y = grav_rad*sin(angle);
box2d.setGravity(-direction.x, direction.y);
camera(width/2.0, height/2.0, (height/2.0) / tan(PI*30.0 / 180.0), width/2.0, height/2.0, 0, 0-map(direction.x,-10,10,-1,1), 0-map(direction.y,-10,10,-1,1), 0);   //x, y, z -> need to change between x and y
box2d.step();
// Display all the boxes
for (Box b: boxes) {
b.display();
}
//display the boundries
boundry[0].display();
boundry[1].display();
boundry[2].display();
boundry[3].display();
}

这是我收到的错误消息：

finishLifecycleAction(com.jogamp.opengl.util.FPSAnimator$3(： ++++++ 超时已达到 ++++++ main-FPSAWTAnimator#00-Timer0 finishLifecycle Action(com.jogamp.opengl.util.FPSAnimator
$3(： OK false- pollPeriod 6， block true -> res false， waited 1002/1000 - main-FPSAWTAnimator#00-Timer0
- com.jogamp.opengl.util.FPSAnimator[start true， animating true， paused false， drawable 1， totals[dt 0， frame 0， fps 0.0]， modeBits 1， init'ed true， animThreadThread[main-FPSAWTAnimator#00-Timer0-FPSAWTAnimator#00-Timer1,5，main]， exclCtxThread false(null(][2]： com.jogamp.opengl.util.AnimatorBase.finishLifecycleAction(
AnimatorBase.java：634([3]： com.jogamp.opengl.util.FPSAnimator.stop(
FPSAnimator.java：326([4]：
processing.opengl.PSurfaceJOGL.stopThread(PSurfaceJOGL.java：722([5]： processing.core.PApplet.dispose(PApplet.java：
3830([6]：
processing.core.PApplet.die(PApplet.java：3741(
[7]：processing.core.PApplet.die(PApplet.java：3751(
[8]： processing.video.Movie.initGStreamer(未知来源(
[9]： processing.video.Movie.(未知来源([10]： Rotating_mouth_boxes_100620.setup(Rotating_mouth_boxes_100620.java：58([11]： processing.core.PApplet.handleDraw(PApplet.java：2432([12]： processing.opengl.PSurfaceJOGL$DrawListener.display(PSurfaceJOGL.java：866([13]： jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java：692([14]： jogamp.opengl.GLDrawableHelper.display(




GLDrawableHelper.java：674(
[15]： jogamp.opengl.GLAutoDrawableBase$2.run(GLAutoDrawableBase.java：443([16]： jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java：1293([17]： jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java：1147([18]： com.jogamp.newt.opengl.GLWindow.display(GLWindow.java：782([19]： com.jogamp.opengl.util.AWTAnimatorImpl.display(AWTAnimatorImpl.java：81([20]： com.jogamp.opengl.util.AnimatorBase.display




(AnimatorBase.java：453(
[21]： com.jogamp.opengl.util.FPSAnimator$MainTask.run(FPSAnimator.java：178([22]： java.util.TimerThread.mainLoop(Timer.java：555([23]： java.util.TimerThread.run(Timer.java：505(

有什么想法吗？我已经成功地分别使用了Box2D和视频，但是将它们放在同一个草图中似乎是一个问题。

Answer 1

我不是 100% 的，但看起来P3D(OpenGL( 渲染器需要在一段时间内完成初始化，并且有些东西延迟了很长时间以至于超时。

有一个镜头加载电影可能是一个问题。

如果您可以使用默认的软件渲染器，请尝试一下：

size(800,800,JAVA2D);

并删除camera().希望这在视觉上仍然没问题。

我目前想不出一个干净的解决方案。

另一种解决方法是在P3D渲染器准备就绪后初始化影片。例如，您可以使用额外的布尔变量来跟踪电影加载是否已触发，以确保仅发生一次。

这是一个(未经测试的(示例：希望注释说明了解决方法：

import processing.video.*;
import shiffman.box2d.*;
import org.jbox2d.collision.shapes.*;
import org.jbox2d.common.*;
import org.jbox2d.dynamics.*;

Box2DProcessing box2d;
int no_boxes = 7;
//All of our boxes
Box[] boxes = new Box[no_boxes];
//Boundry sides
Boundry[] boundry = new Boundry[4];
float angle = -PI/2;
float grav_rad = 30;
float boundr = 260;
float boundw = 30;
PVector direction = new PVector();
Movie mouth;
// keep track if movie load was called
boolean wasMovieLoadCalled = false;
void setup() {
size(800,800,P3D);
frameRate(60);
colorMode(HSB,360,100,100);
noStroke();
// Initialize box2d physics and create the world
box2d = new Box2DProcessing(this);
box2d.createWorld();
//Create the boxes
for (int n=0;n<no_boxes; n++) {
boxes[n] = new Box(random(200,600), random (200,600));
}
//Create the boundries
boundry[0] = new Boundry(400+boundr,400,boundw,2*boundr+boundw);
boundry[1] = new Boundry(400-boundr,400,boundw,2*boundr+boundw);
boundry[2] = new Boundry(400,400+boundr,2*boundr+boundw, boundw);
boundry[3] = new Boundry(400,400-boundr,2*boundr+boundw, boundw);
}
void movieEvent (Movie m) {
m.read();
}

void draw() {
// if load wasn't called
if(wasMovieLoadCalled == false){
//Load the movie
mouth = new Movie(this,"mouth1.mov");
mouth.play();
// update the variable so load happens only once
wasMovieLoadCalled = true;
}
background(200,50,80);
// ensure the movie is loaded before trying to display it
if(mouth != null){
image(mouth,0,0);
}

angle+= radians(0.3);
direction.x = grav_rad*cos(angle);
direction.y = grav_rad*sin(angle);
box2d.setGravity(-direction.x, direction.y);
camera(width/2.0, height/2.0, (height/2.0) / tan(PI*30.0 / 180.0), width/2.0, height/2.0, 0, 0-map(direction.x,-10,10,-1,1), 0-map(direction.y,-10,10,-1,1), 0);   //x, y, z -> need to change between x and y
box2d.step();
// Display all the boxes
for (Box b: boxes) {
b.display();
}
//display the boundries
boundry[0].display();
boundry[1].display();
boundry[2].display();
boundry[3].display();
}