我制作了下面的处理草图,以便我可以将其用作我的博客的标题(通过Processing.js)。
它在我的博客 (tumblr) 上不起作用,所以我尝试在 JavaScript 模式下运行它,它也不起作用。
当我在 Chrome 或 Safari 上运行它时,它不会显示。 我的其他 *.pde 草图工作正常,那些也使用 P3D 的草图工作正常,其他也以相同方式使用鼠标输入的草图也工作正常......我不明白。
昨天我一整天都在绞尽脑汁地想弄清楚。有人可以帮忙吗?
PShape s;
int nbPts = 500;
float AngleSpeed = 0.001;
int col = 0;
void setup() {
size(800, 600, P3D);
s = createShape();
s.beginShape();
for(int i = 0; i <= nbPts; i++) {
int x = int(random(width/10-width, width-width/10));
int y = int(random(height/10-height, height-height/10));
int z = int(random(width/10-width, width - width/10));
s.vertex(x, y, z);
}
s.endShape();
colorMode(HSB, 360, 100, 100);
ellipseMode(CENTER);
strokeWeight(10);
}
void draw() {
noFill();
background(col, 50, 100);
stroke(col, 50, 100);
translate(width/2, height/2, -width/2);
camera();
for (int i = 0; i < s.getVertexCount(); i++) {
float x = s.getVertexX(i);
float y = s.getVertexY(i);
float z = s.getVertexZ(i);
x += random(-1, 1);
y += random(-1, 1);
z += random(-1, 1);
s.setVertex(i, x, y, z);
}
s.disableStyle();
shape(s, 0, 0);
s.rotateY(AngleSpeed);
s.rotateX(random(0, AngleSpeed));
s.rotateZ(random(0, AngleSpeed));
pushMatrix();
translate(0, 0, -width/2);
fill(225, 0, 100);
ellipse(width/2, height/2, width, width);
popMatrix();
}
void mousePressed() {
col = int(random(0, 255));
for(int i = 0; i <= nbPts; i++) {
int x = int(random(width/10-width, width-width/10));
int y = int(random(height/10-height, height-height/10));
int z = int(random(width/10-width, width - width/10));
s.setVertex(i, x, y, z);
}
}
最佳答案
如果您查看浏览器中的 JavaScript 控制台,您会发现以下错误:
Uncaught ReferenceError: createShape is not defined
看起来ProcessingJS没有实现createShape()功能。
您仍然可以通过将顶点存储在数组中并使用 beginShape()
/endShape()
(无需 PShape)来绘制相同的内容:
int nbPts = 500;
float AngleSpeed = 0.001;
int col = 0;
PVector[] pts = new PVector[nbPts];
void setup() {
size(800, 600, P3D);
for(int i = 0; i <= nbPts; i++) {
pts[i] = new PVector(int(random(width/10-width, width-width/10)),
int(random(height/10-height, height-height/10)),
int(random(width/10-width, width - width/10)));
}
colorMode(HSB, 360, 100, 100);
ellipseMode(CENTER);
strokeWeight(10);
}
void draw() {
noFill();
background(col, 50, 100);
stroke(col, 50, 100);
translate(width/2, height/2, -width/2);
camera();
pushMatrix();
rotateY(AngleSpeed);
rotateX(random(0, AngleSpeed));
rotateZ(random(0, AngleSpeed));
beginShape();
for(int i = 0; i <= nbPts; i++) {
PVector v = pts[i];
vertex(v.x, v.y, v.z);
}
endShape();
popMatrix();
pushMatrix();
translate(0, 0, -width/2);
fill(225, 0, 100);
ellipse(width/2, height/2, width, width);
popMatrix();
}
void mousePressed() {
col = int(random(0, 255));
for(int i = 0; i <= nbPts; i++) {
pts[i].set(int(random(width/10-width, width-width/10)),
int(random(height/10-height, height-height/10)),
int(random(width/10-width, width - width/10)));
}
}
3D 部分似乎工作正常。这是一个稍微调整的版本,因此强调了 Y 轴上的旋转:
int nbPts = 500;
float AngleSpeed = 0.001;
int col = 0;
PVector[] pts = new PVector[nbPts];
void setup() {
size(800, 600, P3D);
for(int i = 0; i <= nbPts; i++) {
pts[i] = new PVector(int(random(width/10-width, width-width/10)),
int(random(height/10-height, height-height/10)),
int(random(width/10-width, width - width/10)));
}
colorMode(HSB, 360, 100, 100);
ellipseMode(CENTER);
strokeWeight(10);
}
void draw() {
noFill();
background(col, 50, 100);
stroke(col, 50, 100);
translate(width/2, height/2, -width/2);
camera();
pushMatrix();
rotateY(AngleSpeed + frameCount * .01);
rotateX(random(0, AngleSpeed));
rotateZ(random(0, AngleSpeed));
beginShape();
for(int i = 0; i <= nbPts; i++) {
PVector v = pts[i];
vertex(v.x, v.y, v.z);
}
endShape();
popMatrix();
pushMatrix();
translate(0, 0, -width/2);
fill(225, 0, 100);
ellipse(width/2, height/2, width, width);
popMatrix();
}
void mousePressed() {
col = int(random(0, 255));
for(int i = 0; i <= nbPts; i++) {
pts[i].set(int(random(width/10-width, width-width/10)),
int(random(height/10-height, height-height/10)),
int(random(width/10-width, width - width/10)));
}
}
关于javascript - 为什么当我运行这个Processing/Processing.js 草图时不显示它?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32066923/