0031583: Visualization, OpenGl_Context - load OpenGL ES 3.0 functions

[occt.git] / src / OpenGl / OpenGl_ArbIns.hxx

diff --git a/src/OpenGl/OpenGl_ArbIns.hxx b/src/OpenGl/OpenGl_ArbIns.hxx
index db86f6f..d554f6c 100644 (file)
--- a/src/OpenGl/OpenGl_ArbIns.hxx
+++ b/src/OpenGl/OpenGl_ArbIns.hxx
@@ -19,12 +19,14 @@
 #include <OpenGl_GlFunctions.hxx>
 
 //! Instancing is available on OpenGL 3.0+ hardware
+//! (in core since OpenGL 3.1 or GL_ARB_draw_instanced extension).
+//!
+//! Note that this structure does not include glVertexAttribDivisor(),
+//! which has been introduced in later OpenGL versions (OpenGL 3.3 or OpenGL ES 3.0).
 struct OpenGl_ArbIns : protected OpenGl_GlFunctions
 {
-#if !defined(GL_ES_VERSION_2_0)
   using OpenGl_GlFunctions::glDrawArraysInstanced;
   using OpenGl_GlFunctions::glDrawElementsInstanced;
-#endif
 };
 
 #endif // _OpenGl_ArbIns_H__