commit 27aefee6af7bd291951317efc1843215c8f35ee2
Author: Leszek Koltunski <leszek@koltunski.pl>
Date:   Thu May 3 17:19:14 2018 +0100

    OIT: clear the postprocessing buffer with transparent white.

diff --git a/src/main/java/org/distorted/library/main/DistortedOutputSurface.java b/src/main/java/org/distorted/library/main/DistortedOutputSurface.java
index 6609454..ac92faf 100644
--- a/src/main/java/org/distorted/library/main/DistortedOutputSurface.java
+++ b/src/main/java/org/distorted/library/main/DistortedOutputSurface.java
@@ -317,7 +317,7 @@ public static final int DEBUG_FPS = 1;
     GLES31.glStencilMask(0xff);
     GLES31.glDepthMask(true);
     GLES31.glColorMask(true,true,true,true);
-    GLES31.glClearColor(0.0f,0.0f,0.0f,0.0f);
+    GLES31.glClearColor(1.0f,1.0f,1.0f,0.0f);
     GLES31.glClearDepthf(1.0f);
     GLES31.glClearStencil(0);