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Editorial Team
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Asked: 2026-06-15T14:34:04+00:00

I read the OpenGL Programimg Guide (Sixth Edition) . It said that the parameter

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I read the OpenGL Programimg Guide (Sixth Edition).

  1. It said that the parameter target of glBindData function only can be set with GL_ARRAY_BUFFER and GL_ELEMENT_ARRAY_BUFFER.
  2. But the parameter target of glBufferData can be set with GL_ARRAY_BUFFER, GL_ELEMENT_ARRAY_BUFFER, GL_PIXEL_UNPACK_BUFFER and GL_PIXEL_PACK_BUFFER.

Why can the same parameter have the different value?

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1 Answer

  1. Editorial Team

    It said that the parameter target of glBindData function only can be set with GL_ARRAY_BUFFER and GL_ELEMENT_ARRAY_BUFFER.

    If you meant glBindBuffer, then it’s wrong. You can call glBindBuffer with any of the targets.

    Are you sure you’re reading the book correctly? Did it say that you could only bind to those targets, or has it simply not talked about GL_PIXEL_PACK/UNPACK_BUFFER at that point?

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