247 & 248

s247/s247.pyde

@@ -0,0 +1,43 @@
+curvas = []
+n = 3
+
+def setup():
+    size(1024, 300)
+    noStroke()
+    blendMode(MULTIPLY)
+    
+def keyPressed():
+    if key == "s":
+        saveFrame("###.png")
+    else: 
+        curvas[:] = []
+        for i in range(n):
+            curvas.append((random(-height/6,height/6),
+                  random(-height/6, height/6),
+                  random(.33, 3),
+                  random(.33, 3),
+                  random(.33, 3),
+                 ))
+
+def draw():
+    background(200)
+    translate(0, height/2)
+    for i, (h, a, f1, f2, f3) in enumerate(curvas):
+        if i % 3 == 0:
+            fill(0, 100, 200)
+        elif i % 3 == 1:
+            fill(200, 0, 100)
+        else:
+            fill(100, 0, 200)
+        beginShape()
+        for x in range(width):
+            ang = x/30.
+            s = sin(ang * f1) + sin(ang * f2) + sin(ang * f3) 
+            vertex(x, - h +10 + s * a)
+        for xx in range(width):
+            x = width-xx
+            ang = x/30.
+            s = sin(ang * f1)*1.1 + sin(ang * f2)*1.2 + sin(ang * f3)*1.3
+            vertex(x, + h  +10 + s * a)
+        endShape(CLOSE)
+        

s248/s248.pyde

@@ -0,0 +1,43 @@
+curvas = []
+n = 3
+
+def setup():
+    size(1024, 300)
+    noStroke()
+    blendMode(MULTIPLY)
+    
+def keyPressed():
+    if key == "s":
+        saveFrame("###.png")
+    else: 
+        curvas[:] = []
+        for i in range(n):
+            curvas.append((random(-height/6,height/6),
+                  random(-height/6, height/6),
+                  random(.33, 3),
+                  random(.33, 3),
+                  random(.33, 3),
+                 ))
+
+def draw():
+    background(200)
+    translate(0, height/2)
+    for i, (h, a, f1, f2, f3) in enumerate(curvas):
+        if i % 3 == 0:
+            fill(0, 100, 200)
+        elif i % 3 == 1:
+            fill(200, 0, 100)
+        else:
+            fill(100, 0, 200)
+        beginShape()
+        for x in range(width):
+            ang = x/30.
+            s = sin(ang * f1) + sin(ang * f2) + sin(ang * f3) 
+            vertex(x, - h +10 + s * a)
+        for xx in range(width):
+            x = width-xx
+            ang = x/30.
+            s = sin(ang * f1)*1.1 + sin(ang * f2)*1.2 + sin(ang * f3)*1.3
+            vertex(x, + h  +10 + s * a)
+        endShape(CLOSE)
+