'texture2D' : function is removed in Forward Compatibile context

[yawuliu]

OpenGL render context information:
Renderer : Intel(R) HD Graphics 4600
Vendor : Intel
Version : 4.1.0 - Build 10.18.10.3496
GLSL version : 4.10 - Build 10.18.10.3496
OpenGL version : 4.1
sh:ERROR: 0:15: 'texture2D' : function is removed in Forward Compatibile context
ERROR: 0:15: 'texture2D' : function is removed in Forward Compatibile context
ERROR: 0:15: 'assign' : cannot convert from 'const float' to 'FragUserData 4-component vector of float'
wglMakeCurrent failed: 0
ASSERT failure: "0"[file ..\Tempest\ogl\opengl2x.cpp, line 948, func: 'Tempest::Opengl2x::startRender']
Program exception endding。
G:\RPG\WC34\WorldCraft\Tempest-master\Examples\bin\Tesselation.exe crashed.

[yawuliu]

this is due to my portable pc was Dual graphics