GL_ATI_pn_triangles http://www.opengl.org/registry/specs/ATI/pn_triangles.txt GL_ATI_pn_triangles GL_PN_TRIANGLES_ATI 0x87F0 GL_MAX_PN_TRIANGLES_TESSELATION_LEVEL_ATI 0x87F1 GL_PN_TRIANGLES_POINT_MODE_ATI 0x87F2 GL_PN_TRIANGLES_NORMAL_MODE_ATI 0x87F3 GL_PN_TRIANGLES_TESSELATION_LEVEL_ATI 0x87F4 GL_PN_TRIANGLES_POINT_MODE_LINEAR_ATI 0x87F5 GL_PN_TRIANGLES_POINT_MODE_CUBIC_ATI 0x87F6 GL_PN_TRIANGLES_NORMAL_MODE_LINEAR_ATI 0x87F7 GL_PN_TRIANGLES_NORMAL_MODE_QUADRATIC_ATI 0x87F8 void glPNTrianglesiATI (GLenum pname, GLint param) void glPNTrianglesfATI (GLenum pname, GLfloat param)