From 31f7a62fdfe5bad13545de011f822bf80ec8db20 Mon Sep 17 00:00:00 2001
From: Anton Lydike <anton@lydike.com>
Date: Mon, 16 Mar 2020 10:19:02 +0100
Subject: [PATCH] took sqrt of iterations in color calc to brighten glow

---
 main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/main.c b/main.c
index d08acd7..448070b 100644
--- a/main.c
+++ b/main.c
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <math.h>
 #include <sys/wait.h>
 #include <sys/mman.h>
 
@@ -66,7 +67,7 @@ void draw_mandelbrot(int width, int height, int iterations) {
             //int g = (ret * 9 / iterations);
             //int b = (ret * 165 / iterations);
             //image_set_px(img, x, y, r,g,b);
-            int color = 255 * ret / (float) iterations;
+            int color = 255 * sqrt(ret / (float) iterations);
             image_set_px(img, x, y, color, color, color);
         }
     }