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    <p>I've noticed a few things, particularly with how you set up the projection matrix. For starters, gluProject doesn't return a value, unless you're using some kind of wrapper or weird api. gluLookAt is used more often. </p> <p>Next, assuming the scale, rotate, and translate functions are intended to change the modelview matrix, you need to reverse their order. OpenGL doesn't actually move objects around; instead it effectively moves the origin around, and renders each object using the new definition of &lt;0,0,0>. Thus you 'move' to where you want it to render, then you rotate the axes as needed, then you stretch out the grid.</p> <p>As for the clipping problem, you may want to give <a href="http://pyopengl.sourceforge.net/documentation/manual/glClipPlane.3G.xml" rel="nofollow">glClipPlane()</a> a good look over. If everything else <em>mostly</em> works, but there seems to be some rounding error, try changing the near clipping plane in your perspective(,,,) function from 0.1 to 1.0 (smaller values tend to mess with the z-buffer).</p> <p>I see a lot of unfamiliar syntax, so I think you're using some kind of wrapper; but here are some (Qt) code fragments from my own GL project that I use. Might help, dunno:</p> <pre><code>//This gets called during resize, as well as once during initialization void GLWidget::resizeGL(int width, int height) { int side = qMin(width, height); padX = (width-side)/2.0; padY = (height-side)/2.0; glViewport(padX, padY, side, side); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(60.0, 1.0, 1.0, 2400.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); } //This fragment gets called at the top of every paint event: glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); glLightfv(GL_LIGHT0, GL_POSITION, FV0001); camMain.stepVars(); gluLookAt(camMain.Pos[0],camMain.Pos[1],camMain.Pos[2], camMain.Aim[0],camMain.Aim[1],camMain.Aim[2], 0.0,1.0,0.0); glPolygonMode(GL_FRONT_AND_BACK, drawMode); //And this fragment represents a typical draw event void GLWidget::drawFleet(tFleet* tIn) { if (tIn-&gt;firstShip != 0){ glPushMatrix(); glTranslatef(tIn-&gt;Pos[0], tIn-&gt;Pos[1], tIn-&gt;Pos[2]); glRotatef(tIn-&gt;Yaw, 0.0, 1.0, 0.0); glRotatef(tIn-&gt;Pitch,0,0,1); drawShip(tIn-&gt;firstShip); glPopMatrix(); } } </code></pre> <p>I'm working on the assumption that you're newish to GL, so my apologies if I come off as a little pedantic.</p>
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