Hello,<br><br>I am installing vtk on Linux. I am getting the following error when I do the initial configuration. I am not quiet sure what this means.<br><br>&nbsp;CMake Error: This project requires some variables to be set,<br>
&nbsp;and cmake can not find them.<br>&nbsp;Please set the following variables:<br>&nbsp;OPENGL_INCLUDE_DIR (ADVANCED)<br>&nbsp;OPENGL_gl_LIBRARY (ADVANCED)<br>&nbsp;PYTHON_INCLUDE_PATH<br>&nbsp;PYTHON_LIBRARY<br>&nbsp;TK_INCLUDE_PATH (ADVANCED)<br><br>Thanks,<br>
<br>~D<br>