Init:-----------------------------------------------
  glClearColor(0.0,0.0,0.0,1.0);
  glShadeModel(GL_SMOOTH);
  gtex.MakeSplat(); // 5 levels of mipmapping
  glGenTextures(1,texName);
  glBindTexture(GL_TEXTURE_2D, texName[0]);
  gtex.BindTexture();
  glEnable(GL_TEXTURE_2D);
  glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
  glDisable(GL_BLEND);
  glDisable(GL_ALPHA_TEST);
  glDisable(GL_LIGHTING);
  glDisable(GL_DEPTH_TEST); 
  glDisable(GL_DITHER);
  glEnable(GL_SMOOTH);
  glHint(GL_POLYGON_SMOOTH_HINT,GL_FASTEST);

  glBindProgramARB(GL_VERTEX_PROGRAM_ARB, _vpFinalVertex);
  glProgramEnvParameter4fARB(GL_VERTEX_PROGRAM_ARB,1, ...);
  glEnable(GL_VERTEX_PROGRAM_ARB);

  glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, _fpNormalizeAlpha);
  glProgramEnvParameter4fARB(GL_FRAGMENT_PROGRAM_ARB,1, ...);

  glEnable(GL_FRAGMENT_PROGRAM_ARB);

  pbuffer->Initialize(RX,RY);
  pbuffer->BeginCapture();
    glDisable(GL_LIGHTING);
    glDisable(GL_DEPTH_TEST); 
    glDisable(GL_DITHER);
    glClearColor(0, 0, 0, 0.0);
    glEnable(GL_ALPHA_TEST);
    glEnable(GL_BLEND);
    glEnable(GL_FLAT);
    glHint(GL_POLYGON_SMOOTH_HINT,GL_FASTEST);
    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
    glEnable(GL_TEXTURE_2D);
    glBindTexture(GL_TEXTURE_2D, texName[0]);
    glGenBuffersARB(1, &vbuffer));
    glBindBufferARB(GL_ARRAY_BUFFER_ARB,vbuffer);
    glBufferDataARB(GL_ARRAY_BUFFER_ARB,sizeof(SPts)*ValidSplats,Pts,GL_STATIC_DRAW_ARB);
 
    glInterleavedArrays(GL_C4F_N3F_V3F,0,OFFSET(0));
    glEnable( GL_POINT_SPRITE_ARB );

    glPointParameterfARB(GL_POINT_SIZE_MIN_ARB, 1.0);
    glPointParameterfARB(GL_POINT_SIZE_MAX_ARB, 32.0);
    glPointParameterfARB(GL_POINT_FADE_THRESHOLD_SIZE_ARB, 1.0);
    GLfloat atten_params[] = { 0.0, 0.1, 0.0 };
    glPointParameterfvARB(GL_POINT_DISTANCE_ATTENUATION_ARB, atten_params);

    glTexEnvf( GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE );

    glBindProgramARB(GL_VERTEX_PROGRAM_ARB, _vpCalcWeight[axis]);
    glProgramEnvParameter4fARB(GL_VERTEX_PROGRAM_ARB,1, H, 1.0/(1.0-H),0,0);
	   glEnable(GL_VERTEX_PROGRAM_ARB);
	   glDisable(GL_POINT_SMOOTH);

  pbuffer->EndCapture();

Rendering (display):-----------------------------------------------
  glClear(GL_COLOR_BUFFER_BIT | GL_ACCUM_BUFFER_BIT);
  pbuffer->BeginCapture();
    if (...) 
      glBlendFunc(GL_SRC_ALPHA_SATURATE, GL_ONE);
    else
      glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

      glClear(GL_COLOR_BUFFER_BIT | GL_ACCUM_BUFFER_BIT ); 
      glPointSize( pointspritesize );
      glMatrixMode(GL_PROJECTION);
      glLoadIdentity();
      gluPerspective(Vfov,1.0,1.0,100000.0);
      glMatrixMode(GL_MODELVIEW);
      glLoadIdentity();
      gluLookAt(EyePoint.x,EyePoint.y,EyePoint.z,
            LookPoint.x,LookPoint.y,LookPoint.z,
            Up.x,Up.y,Up.z);
      glProgramEnvParameter4fARB(GL_VERTEX_PROGRAM_ARB,2,...);
      glDrawArrays(GL_POINTS,0,ValidSplats);
    pbuffer->EndCapture();

  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  gluPerspective(Vfov,1.0,1.0,100000.0);
  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
  gluLookAt(EyePoint.x,EyePoint.y,EyePoint.z,
            LookPoint.x,LookPoint.y,LookPoint.z,
            Up.x,Up.y,Up.z);

  glActiveTexture(texARB[0]);
  pbuffer->Bind();
  pbuffer->EnableTextureTarget();

  glProgramEnvParameter4fARB(GL_VERTEX_PROGRAM_ARB,2,...);

  glBegin(GL_QUADS);
    glTexCoord2f(0,1); glVertex3fv(&pc1.x);
    glTexCoord2f(1,1); glVertex3fv(&pc2.x);
    glTexCoord2f(1,0); glVertex3fv(&pc3.x);
    glTexCoord2f(0,0); glVertex3fv(&pc4.x);
  glEnd();

  pbuffer->DisableTextureTarget();

  glutSwapBuffers();

GL Intercept Log. Version : 0.42    Compile Date: Mar 30 2005    Run on: Fri Jun 17 19:38:08 2005===================================================GLDriver - Shutdown - Current OpenGL context 0x10000?GLDriver - Shutdown - Outstanding OpenGL context 0x10000 ?GLDriver - Shutdown - Outstanding OpenGL context 0x10001 ?GLDriver - Shutdown - Outstanding OpenGL context 0x10002 ?GLDriver - Shutdown - Outstanding OpenGL context 0x10003 ?ImageManager::Destructor - OpenGL id 1 is still active. (Image Memory leak?)ImageManager::Destructor - OpenGL id 2 is still active. (Image Memory leak?)ImageManager::Destructor - OpenGL id 3 is still active. (Image Memory leak?)ImageManager::Destructor - OpenGL id 4 is still active. (Image Memory leak?)ShaderManager::Destructor - OpenGL id 1 is still active. (Shader Memory leak?)ShaderManager::Destructor - OpenGL id 2 is still active. (Shader Memory leak?)ShaderManager::Destructor - OpenGL id 3 is still active. (Shader Memory leak?)ShaderManager::Destructor - OpenGL id 4 is still active. (Shader Memory leak?)ShaderManager::Destructor - OpenGL id 5 is still active. (Shader Memory leak?)===================================================Log End.