From 003e9e628b3e7b516d3d70d78b6ba97bca69c813 Mon Sep 17 00:00:00 2001
From: Charles <sircharlesaze@gmail.com>
Date: Tue, 27 Aug 2019 19:19:59 +0200
Subject: Brightness level according to step before excusion

The test to check if something is in the set return -1 else returns the
number of steps, then map the step to a brightness of the pixel.
---
 mandelbrot.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'mandelbrot.c')

diff --git a/mandelbrot.c b/mandelbrot.c
index c5f5148..48d893d 100644
--- a/mandelbrot.c
+++ b/mandelbrot.c
@@ -6,7 +6,7 @@
 #define IN_CHAR '*'
 #define OUT_CHAR ' '
 
-double mandelbrot_in_set(double complex c)
+int mandelbrot_in_set(double complex c)
 {
     int i;
     double complex z = 0;
@@ -14,9 +14,9 @@ double mandelbrot_in_set(double complex c)
     {
         z = cpow(z, 2) + c;
         if (cabs(z) > _INFINITY)
-            return 0;
+            return i;
     }
-    return 1;
+    return -1;
 }
 
 void mandelbrot_print(void)
-- 
cgit