Check for GLES in init_movit().

[movit] / README

diff --git a/README b/README
index c74e8efbbdab8217dc20f4a24fc62044a2870ad4..74be5e5f17bdb8af1d65ba1ded439a35e273ba90 100644 (file)
--- a/README
+++ b/README
@@ -9,7 +9,7 @@ Movit is the Modern Video Toolkit, notwithstanding that anything that's
 called “modern” usually isn't, and it's really not a toolkit.
 
 Movit aims to be a _high-quality_, _high-performance_, _open-source_
 called “modern” usually isn't, and it's really not a toolkit.
 
 Movit aims to be a _high-quality_, _high-performance_, _open-source_

-library for video filters. It is currently in alpha stage.
+library for video filters.

 
 
 TL;DR, please give me download link and system demands
 
 
 TL;DR, please give me download link and system demands


@@ -21,12 +21,13 @@ OK, you need
   works fine on Linux and OS X, and Movit is not very POSIX-bound.)
 * GNU Make.
 * A GPU capable of running GLSL fragment shaders,
   works fine on Linux and OS X, and Movit is not very POSIX-bound.)
 * GNU Make.
 * A GPU capable of running GLSL fragment shaders,

-  process floating-point textures, and a few other things. If your machine
-  is less than five years old _and you have the appropriate drivers_,
-  you're home free.
-* The [Eigen 3] and [Google Test] libraries. (The library itself
-  depends only on the former, but you probably want to run the unit tests.)
-* The [GLEW] library, for dealing with OpenGL extensions on various
+  processing floating-point textures, and a few other things (all are
+  part of OpenGL 3.0 or newer, although most OpenGL 2.0 cards also
+  have what's needed through extensions). If your machine is less than five
+  years old _and you have the appropriate drivers_, you're home free.
+* The [Eigen 3], [FFTW3] and [Google Test] libraries. (The library itself
+  does not depend on the latter, but you probably want to run the unit tests.)
+* The [epoxy] library, for dealing with OpenGL extensions on various

   platforms.
 
 Movit has been tested with Intel GPUs with the Mesa drivers
   platforms.
 
 Movit has been tested with Intel GPUs with the Mesa drivers


@@ -54,7 +55,8 @@ all research-grade problems, and Movit is currently not there.)
 TL;DR, but I am interested in a programming example instead
 ===========================================================
 
 TL;DR, but I am interested in a programming example instead
 ===========================================================
 

-Assuming you have an OpenGL context already set up:
+Assuming you have an OpenGL context already set up (currently you need
+a classic OpenGL context; a GL 3.2+ core context won't do):

 
 <code>
   using namespace movit;
 
 <code>
   using namespace movit;