{"id":153,"date":"2014-02-04T17:39:31","date_gmt":"2014-02-04T17:39:31","guid":{"rendered":"http:\/\/visualgdb.com\/w\/?p=153"},"modified":"2015-07-19T09:02:05","modified_gmt":"2015-07-19T16:02:05","slug":"linux-opengl","status":"publish","type":"post","link":"https:\/\/visualgdb.com\/tutorials\/linux\/opengl\/","title":{"rendered":"Building and Debugging OpenGL on Linux with Visual Studio"},"content":{"rendered":"

In this tutorial we create, build and debug a OpenGL application on Linux with Visual Studio.<\/p>\n

Before you begin, make sure that VisualGDB 3.1<\/a> or later is installed.<\/p>\n

    \n
  1. First let’s install the OpenGL libraries on the Linux machine. You can use the SSH client provided with VisualGDB for it. Start Visual Studio and go to Tools->SSH Host Manager<\/strong>.\"01-ssh\"<\/a><\/li>\n
  2. Click on New Connection<\/strong>. Fill the host name, user name and password details to match the Linux machine details you intend to use. Check the box to setup public key authentication. Click on Create <\/strong> when done.\"02-newconnection\"<\/a><\/li>\n
  3. Click on Open Console<\/strong>.\"04-openconsole\"<\/a><\/li>\n
  4. Once the console is open. Use the following command.\n
    sudo apt-get install libglu1-mesa-dev freeglut3-dev mesa-common-dev<\/pre>\n
    \"05b-smartty\"<\/a><\/li>\n
  5. Once installing completed, close the console and the SSH Host Manager. Go to File->New->Project<\/strong>. Select VisualGDB->Linux Project Wizard<\/strong>. Choose a name and location for the project. Click on OK<\/strong> when done.\"06-newproject\"<\/a><\/li>\n
  6. Make sure that the options for a new application are checked. Click on Next<\/strong>. \"07-newapp\"<\/a><\/li>\n
  7. Choose a remote computer for building, the connection made in the initial steps of this tutorial is listed there. Click on Next<\/strong>. \"08-ssh\"<\/a><\/li>\n
  8. Click on Finish<\/strong>. If prompted to cache the include folders from this machine, choose Yes. \"09-sources\"<\/a><\/li>\n
  9. Replace the main code file contents with the following code originating from here<\/a>.\n
    #include <iostream>\r\n\r\n#include <GL\/glut.h>\r\n\r\n#define window_width 640\r\n#define window_height 480\r\n\r\n\/\/ Main loop\r\nvoid main_loop_function()\r\n{\r\n\/\/ Z angle\r\nstatic float angle;\r\n\/\/ Clear color (screen)\r\n\/\/ And depth (used internally to block obstructed objects)\r\nglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);\r\n\/\/ Load identity matrix\r\nglLoadIdentity();\r\n\/\/ Multiply in translation matrix\r\nglTranslatef(0,0, -10);\r\n\/\/ Multiply in rotation matrix\r\nglRotatef(angle, 0, 0, 1);\r\n\/\/ Render colored quad\r\nglBegin(GL_QUADS);\r\nglColor3ub(255, 000, 000); glVertex2f(-1, 1);\r\nglColor3ub(000, 255, 000); glVertex2f( 1, 1);\r\nglColor3ub(000, 000, 255); glVertex2f( 1, -1);\r\nglColor3ub(255, 255, 000); glVertex2f(-1, -1);\r\nglEnd();\r\n\/\/ Swap buffers (color buffers, makes previous render visible)\r\nglutSwapBuffers();\r\n\/\/ Increase angle to rotate\r\nangle+=0.25;\r\n}\r\n\r\n\/\/ Initialize OpenGL perspective matrix\r\nvoid GL_Setup(int width, int height)\r\n{\r\nglViewport( 0, 0, width, height );\r\nglMatrixMode( GL_PROJECTION );\r\nglEnable( GL_DEPTH_TEST );\r\ngluPerspective( 45, (float)width\/height, .1, 100 );\r\nglMatrixMode( GL_MODELVIEW );\r\n}\r\n\r\n\/\/ Initialize GLUT and start main loop\r\nint main(int argc, char** argv) \r\n{\r\nglutInit(&argc, argv);\r\n\r\nglutInitWindowSize(window_width, window_height);\r\n\r\nglutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);\r\n\r\nglutCreateWindow(\"GLUT Example!!!\");\r\n\r\nglutIdleFunc(main_loop_function);\r\n\r\nGL_Setup(window_width, window_height);\r\nglutMainLoop();\r\n}<\/pre>\n<\/li>\n
  10. If any IntelliSense errors appear with red underlines, then right-click on the project and select VisualGDB Project Properties<\/strong>.\"10-copysources\"<\/a><\/li>\n
  11. Go to the IntelliSense panel and make sure that \/usr\/include<\/strong> is present. Reload<\/strong> or Add Remote<\/strong> the directory. Click on OK<\/strong> to close the window. Rebuilding or editing the source file should fix any IntelliSense errors now. \"24-intellisense\"<\/a><\/li>\n
  12. Open the flags.mak<\/strong> file and add the following libraries to the LIBRARY_NAMES<\/strong> variable.\n
    GL glut GLU<\/pre>\n
    \"11-libraries\"<\/a><\/li>\n
  13. Build the project. \"12-build\"<\/a><\/li>\n
  14. Start debugging. \"17-debug\"<\/a><\/li>\n
  15. When prompted to build the project again, choose Yes <\/strong>and check the checkbox.The project will not actually get rebuilt if there are no changes, but choosing Yes allows make to make that decision. \"18-annoy\"<\/a><\/li>\n
  16. If prompted to find X Server, choose its install directory or let our autoinstaller install it. X Server is used to show Linux graphical applications in Windows. \"19-xserver\"<\/a><\/li>\n
  17. The example will be shown on the Windows development machine as follows. \"20-glut\"<\/a><\/li>\n
  18. If you want the graphical output instead to be displayed on the Linux machine, then go to VisualGDB Project Properties<\/strong> and choose the suitable option from the Program output<\/strong> category. \"23-showremotely\"<\/a><\/li>\n<\/ol>\n
     <\/p>\n","protected":false},"excerpt":{"rendered":"
    In this tutorial we create, build and debug a OpenGL application on Linux with Visual Studio. Before you begin, make<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[92],"tags":[33,80],"_links":{"self":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts\/153"}],"collection":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/comments?post=153"}],"version-history":[{"count":1,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts\/153\/revisions"}],"predecessor-version":[{"id":213,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts\/153\/revisions\/213"}],"wp:attachment":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/media?parent=153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/categories?post=153"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/tags?post=153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}