From 1704088618e55ceeaf087f18f16d0070d8617dd0 Mon Sep 17 00:00:00 2001
From: David Phillips <david@sighup.nz>
Date: Mon, 27 Feb 2017 14:59:19 +1300
Subject: Add new demo image with high detail

---
 README.md            |   2 +-
 create-demo.sh       |  20 ++++++++++----------
 demo-high-iterat.png | Bin 0 -> 5758 bytes
 demo-low-iterat.png  | Bin 0 -> 37208 bytes
 demo.png             | Bin 37208 -> 0 bytes
 5 files changed, 11 insertions(+), 11 deletions(-)
 create mode 100644 demo-high-iterat.png
 create mode 100644 demo-low-iterat.png
 delete mode 100644 demo.png

diff --git a/README.md b/README.md
index 75b1004..b86513a 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ Below is a simple demo image produced with the software. It is a simple
 mandelbrot fractal using only 75 iterations, at 768 square pixels. The
 image is a negative of that which comes straight from the software.
 
-![Demo mandelbrot image](./demo.png)
+![Demo mandelbrot image with few iterations](./demo-low-iterat.png)
 
 Such a small, low-detail image will not provide a case for using GPU rather
 than CPU, but once you start upping the image size and detail, a modern GPU
diff --git a/create-demo.sh b/create-demo.sh
index 8cf9055..a341eb4 100755
--- a/create-demo.sh
+++ b/create-demo.sh
@@ -1,22 +1,22 @@
 #!/bin/sh
 
-final_name="demo.png"
 temp_name="demo.tmp.pgm"
 
 clean() {
 	rm -v "$temp_name"
 }
 
+create_demo() {
+	echo "::: Invoking fractal-gen through pnminvert for negative PGM image"
+	./fractal-gen -p any -s "$1" -i "$2"| pnminvert > "$temp_name"
+	echo "::: Invoking ImageMagick to convert to PNG"
+	convert "$temp_name" "$3"
+	echo "::: Success. Final image is $3"
+}
+
 hash pnminvert || exit
 hash convert || exit
 trap clean exit
 
-echo "::: Invoking fractal-gen through pnminvert for negative PGM image"
-
-./fractal-gen -p any -s 768 -i 75 | pnminvert > "$temp_name"
-
-echo "::: Invoking ImageMagick to convert to PNG"
-
-convert "$temp_name" "$final_name"
-
-echo "::: Success. Final image is $final_name"
+create_demo 768 75 demo-low-iterat.png
+create_demo 768 10000000 demo-high-iterat.png
diff --git a/demo-high-iterat.png b/demo-high-iterat.png
new file mode 100644
index 0000000..a33229b
Binary files /dev/null and b/demo-high-iterat.png differ
diff --git a/demo-low-iterat.png b/demo-low-iterat.png
new file mode 100644
index 0000000..80d2087
Binary files /dev/null and b/demo-low-iterat.png differ
diff --git a/demo.png b/demo.png
deleted file mode 100644
index 5c5a11f..0000000
Binary files a/demo.png and /dev/null differ
-- 
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