Hi, i am not able to get the object select at every point of the object. Following is the code for my select funtion. I am drawing a bunch of lines in my draw function. I get the object ID at some point of the line only. I would appreicate if any one can help me and let me know what am i doing wrong? int selection(int x, int y) { GLuint selectBuf[512]; GLint hits; GLint viewport[4]; wglMakeCurrent (hDC, hgr); glGetIntegerv (GL_VIEWPORT, viewport); glSelectBuffer (512, selectBuf); glRenderMode (GL_SELECT); glInitNames(); glPushName(0); glMatrixMode(GL_PROJECTION); // Selects The Projection Matrix glPushMatrix(); // Push The Projection Matrix glLoadIdentity(); /* create 5x5 pixel picking region near cursor location */ gluPickMatrix((GLdouble) x,(GLdouble) (viewport[3]-y), 10.0f, 10.0f, viewport); gluPerspective(45.0f, (GLfloat) (1.33), 1.0f, 100.0f); glMatrixMode(GL_MODELVIEW); DrawGL(GL_SELECT); glMatrixMode(GL_PROJECTION); glPopMatrix(); glMatrixMode(GL_MODELVIEW); hits = glRenderMode (GL_RENDER); processHits (hits, selectBuf, x, y); return 1; }

Cross post. Closed.