commit be169c101c200d2e60cb74ac66534cad93a3582f
Author: Leszek Koltunski <leszek@koltunski.pl>
Date:   Tue Apr 17 22:07:59 2018 +0100

    Minor.

diff --git a/build.gradle b/build.gradle
index 0b6cdc5..e10ec20 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ android {
 
     defaultConfig {
         applicationId "org.distorted.examples"
-        minSdkVersion 18
+        minSdkVersion 21
         targetSdkVersion 27
     }
 
diff --git a/src/main/AndroidManifest.xml b/src/main/AndroidManifest.xml
index ae762fb..18b75ae 100644
--- a/src/main/AndroidManifest.xml
+++ b/src/main/AndroidManifest.xml
@@ -4,7 +4,7 @@
     android:versionCode="1"
     android:versionName="1.0" >
 
-    <uses-sdk android:minSdkVersion="11" android:targetSdkVersion="23" />
+    <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="23" />
     <uses-feature android:glEsVersion="0x00030000" android:required="true" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
diff --git a/src/main/java/org/distorted/examples/glow/GlowRenderer.java b/src/main/java/org/distorted/examples/glow/GlowRenderer.java
index 682eb59..2dea144 100644
--- a/src/main/java/org/distorted/examples/glow/GlowRenderer.java
+++ b/src/main/java/org/distorted/examples/glow/GlowRenderer.java
@@ -66,7 +66,7 @@ class GlowRenderer implements GLSurfaceView.Renderer
 
       mRootW = LEAF_SIZE;
       mRootH = LEAF_SIZE;
-      mLeaf  = new DistortedTexture(LEAF_SIZE,LEAF_SIZE);
+      mLeaf  = new DistortedTexture(mRootW,mRootH);
       mMove  = new Static3D(0,0,0);
       mScale = new Static3D(1,1,1);
       mRadius= new Static1D(25);
@@ -123,7 +123,7 @@ class GlowRenderer implements GLSurfaceView.Renderer
      {
      float qw = (float)width /mRootW;
      float qh = (float)height/mRootH;
-     float factor = 0.5f* (qw<qh ? qw:qh);
+     float factor = 0.8f* (qw<qh ? qw:qh);
      int w = (int)(factor*mRootW);
      int h = (int)(factor*mRootH);