Trying to build OpenCV 2.4.1 with OpenGL support

Question

I am trying to build OpenCV 2.4.1 with OpenGL support, and it keeps faling. I have OpenGL installed in my Ubuntu 11.04, libs are under /usr/lib/libGL.so as usual. I know my OpenGL installation is correct because I have C++ OpenGL projects that compile, link and run OK.

I run the cmake command as follows, because I want both CUDA and OpenGL support.

/data/OpenCV-2.4.1/build $ cmake -D WITH_OPENGL=ON -D CMAKE_BUILD_TYPE=RELEASE -D WITH_CUDA=ON -D CUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda/ -D BUILD_EXAMPLES=ON -D WITH_TBB=ON ..

This is the output I get from this, telling me CUDA was properly detected, but OpenGL wasn't

-- General configuration for OpenCV 2.4.1 =====================================
-- 
--   Platform:
--     Host:                        Linux 2.6.35-32-generic x86_64
--     CMake:                       2.8.8
--     CMake generator:             Unix Makefiles
--     CMake build tool:            /usr/bin/make
--     Configuration:               RELEASE
-- 
--   C/C++:
--     Built as dynamic libs?:      YES
--     C++ Compiler:                /usr/bin/c++ (ver 4.4.4)
--     C++ flags (Release):         -Wall -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -ffunction-sections -O3 -DNDEBUG   -DNDEBUG
--     C++ flags (Debug):           -Wall -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -ffunction-sections -g  -O0 -DDEBUG -D_DEBUG -ggdb3
--     C Compiler:                  /usr/bin/gcc
--     C flags (Release):           -Wall -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -ffunction-sections -O3 -DNDEBUG  -DNDEBUG
--     C flags (Debug):             -Wall -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -ffunction-sections -g  -O0 -DDEBUG -D_DEBUG -ggdb3
--     Linker flags (Release):      
--     Linker flags (Debug):        
-- 
--   OpenCV modules:
--     To be built:                 calib3d contrib core features2d flann gpu highgui imgproc legacy ml nonfree objdetect photo python stitching ts video videostab
--     Disabled:                    -
--     Disabled by dependency:      -
--     Unavailable:                 androidcamera java
-- 
--   GUI: 
--     QT 4.x:                      NO
--     GTK+ 2.x:                    YES (ver 2.22.0)
--     GThread :                    YES (ver 2.26.1)
--     GtkGlExt:                    NO
--     OpenGL support:              NO
-- 
--   Media I/O: 
--     ZLib:                        /usr/lib64/libz.so (ver 1.2.3.4)
--     JPEG:                        /usr/lib64/libjpeg.so (ver 62)
--     PNG:                         /usr/lib64/libpng.so (ver 1.2.44)
--     TIFF:                        /usr/lib64/libtiff.so (ver 42 - 3.9.4)
--     JPEG 2000:                   /usr/lib64/libjasper.so (ver 1.900.1)
--     OpenEXR:                     /usr/lib64/libImath.so /usr/lib64/libIlmImf.so /usr/lib64/libIex.so /usr/lib64/libHalf.so /usr/lib64/libIlmThread.so (ver 1.6.1)
-- 
--   Video I/O:
--     DC1394 1.x:                  NO
--     DC1394 2.x:                  NO
--     FFMPEG:                      YES
--       codec:                     YES (ver 54.23.100)
--       format:                    YES (ver 54.6.100)
--       util:                      YES (ver 51.54.100)
--       swscale:                   YES (ver 2.1.100)
--       gentoo-style:              YES
--     GStreamer:                   
--       base:                      YES (ver 0.10.30)
--       app:                       YES (ver 0.10.30)
--       video:                     YES (ver 0.10.30)
--     OpenNI:                      NO
--     OpenNI PrimeSensor Modules:  NO
--     PvAPI:                       NO
--     UniCap:                      NO
--     UniCap ucil:                 NO
--     V4L/V4L2:                    Using libv4l (ver 0.8.8)
--     Xine:                        NO
-- 
--   Other third-party libraries:
--     Use IPP:                     NO
--     Use TBB:                     YES (ver 3.0 interface 5000)
--     Use Cuda:                    YES (ver 4.2)
--     Use Eigen:                   YES (ver 2.0.15)
-- 
--   NVIDIA CUDA:                   (ver 4.2)
--     Use CUFFT:                   YES
--     Use CUBLAS:                  NO
--     NVIDIA GPU arch:             11 12 13 20 21 30
--     NVIDIA PTX archs:            11 12 13 20 21 30
--     NVIDIA GPU features:         11 12 13 20 20 30 20
-- 
--   Python:
--     Interpreter:                 /usr/bin/python (ver 2.6.6)
--     Libraries:                   /usr/lib64/libpython2.6.so (ver 2.6.6)
--     numpy:                       /usr/local/lib/python2.6/dist-packages/numpy/core/include (ver 2.0.0.dev-27befc8)
--     packages path:               lib/python2.6/dist-packages
-- 
--   Documentation:
--     Build Documentation:         NO
--     Sphinx:                      NO
--     PdfLaTeX compiler:           /usr/local/texlive/2011/bin/x86_64-linux/pdflatex
-- 
--   Tests and samples:
--     Tests:                       YES
--     Performance tests:           YES
--     Examples:                    YES
-- 
--   Install path:                  /usr/local
-- 
--   cvconfig.h is in:              /data/OpenCV-2.4.1/build
-- -----------------------------------------------------------------
-- 
-- Configuring done
-- Generating done
-- Build files have been written to: /data/OpenCV-2.4.1/build

Any guess what is missing?

Answer 1

Run cmake with option:

cmake -DWITH_OPENGL=ON <your CMakeLists.txt directory>

or

cmake -DUSE_OPENGL=ON <your CMakeLists.txt directory>

Answer 2

If OpenGL is installed:

apt-get install libgl1-mesa-dev libglu1-mesa-dev libqt4-opengl-dev

And still CMake cannot find OpenGL, then it means there is no libGl.so in /usr/lib/x86_64-linux-gnu/. If there is libGl.so in /usr/lib/x86_64-linux-gnu/mesa/, then this is a case of a missing softlink. Just reinstalling the packages should re-establish that link.

apt-get install --reinstall libgl1-mesa-dev libglu1-mesa-dev libqt4-opengl-dev

Please note that I had to install libqt4-opengl-dev even though I did not care about Qt support in OpenCV or Qt support anywhere else. I am trying to figure out myself why a hefty 80MB or download and install was necessary to make the regular OpenGL work, but this method certainly works in Ubuntu 13.10.

Answer 3

I have the same problem and I fund a solution by putting a extra command (WITH_QT=ON). I dont know why, but I found on the internet that is not possible enable OPENGL without enableing QT instead of GTK. I hope that this help us, and Iam sorry for my english (I dont know so much because I talk spanish).

Saludos compadres !! Desde Mexico :D

Answer 4

You probably forgot to install the GTK+ OpenGL Extensions and their headers

sudo apt-get install libgtkglext1 libgtkglext1-dev

Answer 5

I couldn't get the WITH_OPENGL flag to show up in my openCV 2.4.3 CMake options (I am running on a Mac - Snow Leopard 10.6.8)... I finally got it working by just opening up CMakeLists.txt and editing line 128 to:

OCV_OPTION(WITH_OPENGL "Include OpenGL support" ON)

Then run your CMake configurator/generator and it should build.

Answer 6

cmake -D:WITH_OPENGL=ON

for Dan's comment. on openCV 2.4.6