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Editorial Team
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Asked: 2026-05-15T15:02:33+00:00

I create my VBO like this: glGenBuffersARB(1,&polyvbo); glBindBufferARB(GL_ARRAY_BUFFER_ARB,polyvbo); glBufferDataARB(GL_ARRAY_BUFFER_ARB,sizeof(GLfloat) * tempvct.size(),&tempvct[0],GL_DYNAMIC_COPY); Then to update

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I create my VBO like this:

glGenBuffersARB(1,&polyvbo);

    glBindBufferARB(GL_ARRAY_BUFFER_ARB,polyvbo);
    glBufferDataARB(GL_ARRAY_BUFFER_ARB,sizeof(GLfloat) * tempvct.size(),&tempvct[0],GL_DYNAMIC_COPY);

Then to update it I just do the same thing:

    glBindBufferARB(GL_ARRAY_BUFFER_ARB,polyvbo);
    glBufferDataARB(GL_ARRAY_BUFFER_ARB,sizeof(GLfloat) * tempvct.size(),&tempvct[0],GL_DYNAMIC_COPY);

(needless to say, the data in tempvct changes)

I’m just wondering if the above produces a memory leak. do I need to delete the vbo and recreate it, or will it automatically delete the old and update?

Thanks

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1 Answer

  1. Editorial Team

    It doesn’t cause a memory leak because the buffer is not reallocated.

    But why not use glBufferSubData()? it will probably be much faster and does basically the same thing.

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