My graphics driver supports OpenGL 4.2
In the fragment program, I use the following code to lookup a cube map array:
#version 420 uniform samplerCubeArray cubes; ... texture(cubes, vec4(direction, depth));
Then I was reminded to enable the following extension:
#extension GL_ARB_texture_cube_map_array : enable
I compiled and ran, but it still said “unable to find compatible overloaded function ‘texCUBEARRAY(samplerCubeArray, vec4)’”.
Is the function texCUBEARRAY a funcion of Cg? What should I do?