0031596: Visualization, OpenGl_Context - take GL_OES_texture_float extension into...

[occt.git] / src / OpenGl / OpenGl_Context.cxx

diff --git a/src/OpenGl/OpenGl_Context.cxx b/src/OpenGl/OpenGl_Context.cxx
index 9ae0f0e..36933dd 100644 (file)
--- a/src/OpenGl/OpenGl_Context.cxx
+++ b/src/OpenGl/OpenGl_Context.cxx
@@ -1543,8 +1543,9 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
     hasHighp = Standard_True;
   }
 
-  arbTexFloat = IsGlGreaterEqual (3, 0)
-             && FindProcShort (glTexImage3D);
+  arbTexFloat = (IsGlGreaterEqual (3, 0)
+              && FindProcShort (glTexImage3D))
+              || CheckExtension ("GL_OES_texture_float");
   hasTexFloatLinear = arbTexFloat
                    && CheckExtension ("GL_OES_texture_float_linear");