Executing Multiple Display Lists (cont) char *test1 = "A SPARE SERAPE APPEARS AS";  char *test2 = "APES PREPARE RARE PEPPERS";  static void printStrokedString(char *s)  {    GLsizei len = strlen(s);    glCallLists(len, GL_BYTE, (GLbyte *)s);  }

	Managing State Variables with Display Lists OGL state variables can be changed by display lists Those changes persist after the DL call    To allow a DL to change state variables temporarily use: glPushAttrib() / glPopAttrib() glPushMatrix() / glPopMatrix()  (they can be stored in a DL)

	Encapsulating Mode Changes Use DLs to organize and store groups of commands for mode changes Stipple Fog Lighting Clipping     Use of DLs typically will be as fast as immediate mode Be aware of the overhead of calling DLs

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