From a87141b250db68f9c6040bbe068e0b3107842248 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Tue, 7 Aug 2012 15:27:41 +0200
Subject: [PATCH] Mention required version/extension in shader code.

---
 src/AbstractShaderProgram.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/AbstractShaderProgram.h b/src/AbstractShaderProgram.h
index 827d238de..f50d20040 100644
--- a/src/AbstractShaderProgram.h
+++ b/src/AbstractShaderProgram.h
@@ -80,6 +80,8 @@ The preferred workflow is to specify attribute location for vertex shader
 input attributes and fragment shader output attributes explicitly in the
 shader code, e.g.:
 @code
+#version 330
+// or #extension GL_ARB_explicit_attrib_location: enable
 layout(location = 0) in vec4 vertex;
 layout(location = 1) in vec3 normal;
 layout(location = 2) in vec2 textureCoords;
@@ -122,6 +124,8 @@ bindFragmentDataLocationIndexed(1, 1, "ambient");
 The preferred workflow is to specify texture layers directly in the shader
 code, e.g.:
 @code
+#version 420
+// or #extension GL_ARB_shading_language_420pack: enable
 layout(binding = 0) uniform sampler2D diffuseTexture;
 layout(binding = 1) uniform sampler2D specularTexture;
 @endcode