From: Ralf Jung <post@ralfj.de>
Date: Wed, 2 Oct 2013 18:06:39 +0000 (+0200)
Subject: Make the shaders work on NVidia
X-Git-Url: https://git.ralfj.de/gltest.git/commitdiff_plain/3e648337c136c8a8715d642857faa9e00a6db180?ds=inline

Make the shaders work on NVidia
---

diff --git a/glutil_gl2.cpp b/glutil_gl2.cpp
index 8e55b93..87d8e0c 100644
--- a/glutil_gl2.cpp
+++ b/glutil_gl2.cpp
@@ -128,6 +128,8 @@ void resolveFunctionPointers(T_glGetProcAddress p_glGetProcAddress)
 // shaders
 static const char *vertex_shader_source =
 "#version 100 \n\
+precision mediump float;\n\
+precision mediump int;\n\
 attribute vec2 position; \n\
 attribute vec3 color; \n\
 varying vec3 frag_color; \n\
@@ -138,6 +140,8 @@ void main() \n\
 }";
 static const char *fragment_shader_source =
 "#version 100 \n\
+precision mediump float;\n\
+precision mediump int;\n\
 varying vec3 frag_color; \n\
 void main(void) \n\
 { \n\