1GL_NV_point_sprite 2https://www.khronos.org/registry/OpenGL/extensions/NV/NV_point_sprite.txt 3GL_NV_point_sprite 4 5 GL_POINT_SPRITE_NV 0x8861 6 GL_COORD_REPLACE_NV 0x8862 7 GL_POINT_SPRITE_R_MODE_NV 0x8863 8 void glPointParameteriNV (GLenum pname, GLint param) 9 void glPointParameterivNV (GLenum pname, const GLint* params) 10