Data commit

Task/Plasma-effect/Processing/plasma-effect.processing

@@ -0,0 +1,48 @@
+/**
+ Plasmas with Palette Looping
+ https://lodev.org/cgtutor/plasma.html#Plasmas_with_Palette_Looping_
+ */
+
+int pal[] = new int[128];
+int[] buffer;
+float r = 42, g = 84, b = 126;
+boolean rd, gd, bd;
+
+void setup() {
+  size(600, 600);
+  frameRate(25);
+  buffer = new int[width*height];
+  for (int x = 0; x < width; x++) {
+    for (int y = 0; y < height; y++) {
+      buffer[x+y*width] = int(((128+(128*sin(x/32.0)))
+        +(128+(128*cos(y/32.0)))
+        +(128+(128*sin(sqrt((x*x+y*y))/32.0))))/4);
+    }
+  }
+}
+
+void draw() {
+  if (r > 128) rd = true;
+  if (!rd) r++;
+  else r--;
+  if (r < 0) rd = false;
+  if (g > 128) gd = true;
+  if (!gd) g++;
+  else g--;
+  if (r < 0) gd = false;
+  if (b > 128) bd = true;
+  if (!bd) b++;
+  else b--;
+  if (b < 0){ bd = false;}
+  float s_1, s_2;
+  for (int i = 0; i < 128; i++) {
+    s_1 = sin(i*PI/25);
+    s_2 = sin(i*PI/50+PI/4);
+    pal[i] = color(r+s_1*128, g+s_2*128, b+s_1*128);
+  }
+  loadPixels();
+  for (int i = 0; i < buffer.length; i++) {
+    pixels[i] =  pal[(buffer[i]+frameCount)&127];
+  }
+  updatePixels();
+}