diff --git a/rainbow.py b/rainbow.py
index 10ea3d5..5bd7d66 100644
--- a/rainbow.py
+++ b/rainbow.py
@@ -15,10 +15,10 @@ center = [0,0]
 r = 1
 n = 1.3
 disk = Disk(center, r, n)
-dx = 0.01
+dx = 0.00001
 N = int(2*r /dx - 1)
-min_intensity = 0.001
-max_ray = 10000
+min_intensity = 0.00001
+max_ray = 1000000
 
 stack = []
 result = []
@@ -155,7 +155,7 @@ def bin_find(x, list):
 def take_picture(angles, angle_sRGB, w, h, distance, filename="image.png"):
 	image_array = np.zeros((w, h, 3), dtype=np.uint8)
 	radius = distance * np.tan(angles)
-	for i in range(w):
+	for i in track(range(w), description="generating picture..."):
 		for j in range(h):
 			r = np.linalg.norm(np.array([i,j]) - [w/2, 0])
 			index = bin_find(r, radius)
@@ -164,5 +164,6 @@ def take_picture(angles, angle_sRGB, w, h, distance, filename="image.png"):
 	image.save(filename)
 
 if __name__=="__main__":
-	angles,sRGB=rainbow(10, 10)
-	take_picture(angles,sRGB, 1920, 1080, 500, "image.png")
+	angles,sRGB=rainbow(10000, 10)
+	np.savez_compressed("saved.npz", a=angles, b=sRGB)
+	take_picture(angles,sRGB, 3840, 2160, 1200, "image.png")