X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fshader.h;h=bab11a7e9603e8bcc32652427b20ade4e7796267;hp=63af9b3ab74862c10fb417b68bdaa18786c8e9b9;hb=d901696935a6bf9fdad6ac8abe65ffab79bd297d;hpb=9733137499a84f44c29d06d2551d41a903de1112

diff --git a/source/shader.h b/source/shader.h
index 63af9b3a..bab11a7e 100644
--- a/source/shader.h
+++ b/source/shader.h
@@ -7,6 +7,12 @@
 namespace Msp {
 namespace GL {
 
+/**
+A single shader stage.  Shaders must be attached to a Program to be used.
+
+This class can't be instantiated directly.  Use one of the VertexShader and
+FragmentShader classes to create Shaders.
+*/
 class Shader
 {
 private:
@@ -46,6 +52,14 @@ public:
 	FragmentShader(const std::string &);
 };
 
+
+class GeometryShader: public Shader
+{
+public:
+	GeometryShader();
+	GeometryShader(const std::string &);
+};
+
 } // namespace GL
 } // namespace Msp