方法GLProfile。当GL4可用时,getDefault()返回GL2。为什么?我使用的是Ubuntu 17.04,处理器是Intel Core i5-7500(视频适配器是Intel HD Graphics 630,它支持GL4(如此图形卡的规范中所述)。
输出
glxinfo | grep -i opengl
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Kabylake GT2
OpenGL core profile version string: 4.5 (Core Profile) Mesa 17.0.7
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 17.0.7
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 17.0.7
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:
