From: kgv <kgv@opencascade.com>
Date: Wed, 3 Jun 2020 09:20:49 +0000 (+0300)
Subject: 0031596: Visualization, OpenGl_Context - take GL_OES_texture_float extension into... 
X-Git-Tag: V7_5_0_beta~184
X-Git-Url: http://git.dev.opencascade.org/gitweb/?a=commitdiff_plain;h=59ec2ccec98845ed8f0f56b6bd36c649b2ed2b60;p=occt-copy.git

0031596: Visualization, OpenGl_Context - take GL_OES_texture_float extension into account for arbTexFloat flag
---

diff --git a/src/OpenGl/OpenGl_Context.cxx b/src/OpenGl/OpenGl_Context.cxx
index 9ae0f0ec41..36933dd4ff 100644
--- 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");