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Thread: glBindBuffer() execution problem

  1. #1
    Intern Contributor
    Join Date
    Sep 2012
    Posts
    76

    glBindBuffer() execution problem

    Greetings:
    I am running MS VC++ 2010 in W7 trying to understand OpenGL buffers. A program copied from the red book runs fine up to and including the first line below.
    ...
    glGenBuffers(NUM_BUFFERS, buffers);
    glBindBuffer(GL_ARRAY_BUFFER, buffers[VERTICES]);
    ...
    // NUM_BUFFERS = 2, VERTICES = 0

    But once the second line is uncommented, it does compile but blows up executing with
    "Unhandled exception at 0x003bff04 in Buffers.exe: 0xC0000005: Access violation reading location 0x015efdf8."

    I have included and initialized GLUT and GLEW. So what could be the problem? glBindBuffer() wants to access the GPU but something has to be set first? Do I need to use freeGLUT rather than the (outdated?) GLUT?

    Any suggestions would be welcome.
    Thanks,
    Sam

  2. #2
    Super Moderator OpenGL Guru
    Join Date
    Feb 2000
    Location
    Montreal, Canada
    Posts
    4,264
    You need GL 1.5 at minimum to use VBO. Check your GL version.
    ------------------------------
    Sig: http://glhlib.sourceforge.net
    an open source GLU replacement library. Much more modern than GLU.
    float matrix[16], inverse_matrix[16];
    glhLoadIdentityf2(matrix);
    glhTranslatef2(matrix, 0.0, 0.0, 5.0);
    glhRotateAboutXf2(matrix, angleInRadians);
    glhScalef2(matrix, 1.0, 1.0, -1.0);
    glhQuickInvertMatrixf2(matrix, inverse_matrix);
    glUniformMatrix4fv(uniformLocation1, 1, FALSE, matrix);
    glUniformMatrix4fv(uniformLocation2, 1, FALSE, inverse_matrix);

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