GL_NV_point_sprite http://www.opengl.org/registry/specs/NV/point_sprite.txt GL_NV_point_sprite GL_POINT_SPRITE_NV 0x8861 GL_COORD_REPLACE_NV 0x8862 GL_POINT_SPRITE_R_MODE_NV 0x8863 void glPointParameteriNV (GLenum pname, GLint param) void glPointParameterivNV (GLenum pname, const GLint* params)