1. 制作画布大小 2. 制作台体 3. 台体摆放位罝 4. 台体铺满画布 5.设定台体旋转角度 6.绘制纹理写出这六步的代码

下面是使用Processing实现绘制一个带纹理的旋转台体的代码，包括六个步骤：

1. 制作画布大小

void setup() {
  size(800, 600, P3D);
}

2. 制作台体

float radius = 200; // 台体半径
float height = 100; // 台体高度

void drawCylinder(float x, float y, float z) {
  pushMatrix();
  translate(x, y, z);
  beginShape(QUAD_STRIP);
  for (int i = 0; i <= 360; i += 10) {
    float x1 = radius * cos(radians(i));
    float z1 = radius * sin(radians(i));
    float x2 = radius * cos(radians(i));
    float z2 = radius * sin(radians(i));
    vertex(x1, 0, z1);
    vertex(x2, height, z2);
  }
  endShape();
  popMatrix();
}

3. 台体摆放位置

float spacing = 300; // 台体间距
int numCylindersX = ceil(width / spacing); // 横向台体数量
int numCylindersY = ceil(height / spacing); // 纵向台体数量

4. 台体铺满画布

void draw() {
  background(0);
  for (int i = 0; i < numCylindersX; i++) {
    for (int j = 0; j < numCylindersY; j++) {
      float x = i * spacing - (numCylindersX - 1) * spacing / 2;
      float y = j * spacing - (numCylindersY - 1) * spacing / 2;
      float z = 0;
      drawCylinder(x, y, z);
    }
  }
}

5. 设定台体旋转角度

float xRotation = 0;
float yRotation = 0;

void mouseDragged() {
  xRotation += (mouseX - pmouseX) * 0.01;
  yRotation += (mouseY - pmouseY) * 0.01;
}

6. 绘制纹理

PImage texture;

void setup() {
  size(800, 600, P3D);
  texture = loadImage("texture.jpg");
}

void drawCylinder(float x, float y, float z) {
  // ...
  texture(texture);
  // ...
}

将上述代码组合起来，就可以绘制出一个带纹理的旋转台体了。