updated readme.

Author: JimSeker

README.md

@@ -8,7 +8,7 @@ OpenGl Examples
 
 **OpenGL 2.0 examples:**
 
-`HelloOpenGLES20` is Google’s basic framework example.  2D square and triangle with touch events to spin the triangle  API 8+ and works on android 15 devices.
+`HelloOpenGLES20` is Google’s basic framework example.  2D square and triangle with touch events to spin the triangle  API 8+ and works on android 15 devices.  
 
 `Opengl2ex1`  uses a renderer (lessonOne from http://www.learnopengles.com/android-lesson-one-getting-started/) and mainactivity to setup everything
     NOTE: this example may fail in the emulators, but works on a physical device.  verified it works on android 15 devices.
@@ -19,13 +19,14 @@ OpenGl Examples
 
 **OpenGL 3.X examples:**
 
-intended to get you started in OpenGL 3.0, but don't provide any depth of coverage.
+intended to get you started in OpenGL 3.0, but don't provide any depth of coverage.  
+<B>NOTE, in android 15 some of these examples now fail and I do not know why.  They work correctly on a pixel4a running android 13, but then fail to run pixel 7 and 8 devices.   likely there is a error in library? android states, opengl is no longer under active developement.   Vulkan is the new graphics package and opengl is on the way out.  Use at your own risk or maybe v2 instead.<B>
 
 `HelloOpenGLES30` is Google’s basic framework example from 2.0, updated to OpenGL ES 3.0.  2D square and triangle with touch events to spin the triangle.  API 18+
 
-`Opengl3ex1` is based on Opengl2ex1, with references changed to GLES30.  Note this may fail in emulators. 
+`Opengl3ex1` is based on Opengl2ex1, with references changed to GLES30.  Note this may fail in emulators.  Works on android 15, but using the older v2 code, instead of the commmented out v3 code.  the v3 code works on android 13, but not android 15 devices.  
 
-`Opengl3ex2` is based on Opengl2ex2, again with references changed. Note this may fail in emulators. 
+`Opengl3ex2` is based on Opengl2ex2, again with references changed. Note this may fail in emulators.  Works on android 15, but using the older v2 code, instead of the commmented out v3 code.  the v3 code works on android 13, but not android 15 devices.  
 
 `Opengl3ex3` is from the OpenGL ES 3.0 Programing Guide, which can be found here: http://opengles-book.com/samplecode.html