Initial Commit

Java/Processing/processing-3.3.6/modes/java/examples/Topics/File IO/SaveFrames/SaveFrames.pde

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+/**
+ * Save Frames
+ * by Daniel Shiffman.  
+ * 
+ * This example demonstrates how to use saveFrame() to render
+ * out an image sequence that you can assemble into a movie
+ * using the MovieMaker tool.
+ */
+
+// A boolean to track whether we are recording are not
+boolean recording = false;
+
+void setup() {
+  size(640, 360);
+}
+
+void draw() {
+  background(0);
+  
+  // An arbitrary oscillating rotating animation 
+  // so that we have something to render
+  for (float a = 0; a < TWO_PI; a+= 0.2) {
+    pushMatrix();
+    translate(width/2, height/2);
+    rotate(a+sin(frameCount*0.004*a));
+    stroke(255);
+    line(-100, 0, 100, 0);
+    popMatrix();
+  }
+  
+  // If we are recording call saveFrame!
+  // The number signs (#) indicate to Processing to 
+  // number the files automatically
+  if (recording) {
+    saveFrame("output/frames####.png");
+  }
+   
+  // Let's draw some stuff to tell us what is happening
+  // It's important to note that none of this will show up in the
+  // rendered files b/c it is drawn *after* saveFrame()
+  textAlign(CENTER);
+  fill(255);
+  if (!recording) {
+    text("Press r to start recording.", width/2, height-24);
+  } 
+  else {
+    text("Press r to stop recording.", width/2, height-24);
+  }
+  
+  // A red dot for when we are recording
+  stroke(255);
+  if (recording) {
+    fill(255, 0, 0);
+  } else { 
+    noFill();
+  }
+  ellipse(width/2, height-48, 16, 16);
+}
+
+void keyPressed() {
+  
+  // If we press r, start or stop recording!
+  if (key == 'r' || key == 'R') {
+    recording = !recording;
+  }
+}
+
+