Method StartNonOrtho

Rendering/OpenGL2/vtkOpenGLFramebufferObject.cxx:428–457

}

bool vtkOpenGLFramebufferObject::StartNonOrtho(int width, int height)
{
  this->Bind();

  // make sure sizes are consistent for all attachments
  // this will adjust the depth buffer size if we
  // created it.
  this->UpdateSize();

  // If width/height does not match attachments error
  if (this->LastSize[0] != width || this->LastSize[1] != height)
  {
    vtkErrorMacro("FBO size does not match the size of its attachments!.");
  }

  this->ActivateBuffers();

  GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
  if (status != GL_FRAMEBUFFER_COMPLETE)
  {
    vtkErrorMacro("Frame buffer object was not initialized correctly.");
    this->CheckFrameBufferStatus(GL_FRAMEBUFFER);
    this->DisplayFrameBufferAttachments();
    this->DisplayDrawBuffers();
    this->DisplayReadBuffer();
    return false;
  }

  return true;
}

void vtkOpenGLFramebufferObject::UpdateSize()
{