2
http://www.opengl.org/registry/specs/NV/fog_distance.txt
3
GL_FOG_DISTANCE_MODE_NV 0x855A
4
GL_EYE_RADIAL_NV 0x855B
5
GL_EYE_PLANE_ABSOLUTE_NV 0x855C
2
http://www.opengl.org/registry/specs/NV/fog_distance.txt
3
GL_FOG_DISTANCE_MODE_NV 0x855A
4
GL_EYE_RADIAL_NV 0x855B
5
GL_EYE_PLANE_ABSOLUTE_NV 0x855C