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Type: Posts; User: dcox1776

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    target vs name

    When BufferData is called the first parameter is target - for example, ARRAY_BUFFER. BufferData copies data from the client to a buffer object associated with target. However, buffer objects also...
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    State charts are good examples of graphics that...

    State charts are good examples of graphics that illustrate the behavior of a system. A state chart can capture the state changes caused by one or more function calls. For OpenGL state charts...
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    Alfonse, that's a pretty lame attempt at trying...

    Alfonse, that's a pretty lame attempt at trying to insult me and trivialize my comments.

    I can think of lots of ways that graphics could be used to explain concepts. For example, OpenGL has a...
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    Suggestions for teaching OpengGL

    For several months I have been trying to learn OpenGL to go beyond displaying a single 3D object. I have watched a lot of videos, read books, and lots of online documentation. In my opinion, the...
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    arekkusu, thanks for the tip. I found...

    arekkusu, thanks for the tip.

    I found ARRAY_BUFFER_BINDING in section 2.9.6 of the 3.2core spec. The spec isn't very clear. ARRAY_BUFFER_BINDING is mentioned only once: "For example, the...
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    Thanks Dan!

    Thanks Dan!
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    Another quick question about this topic. Let's...

    Another quick question about this topic. Let's say I make multiple calls to bind three different buffers to the same target (GL_ARRAY_BUFFER). glVertexAttribPointer is called for each and in each...
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    Thanks for the replies. I did some experimenting...

    Thanks for the replies. I did some experimenting last night on my mac. If I place the calls to glVertexAttribPointer before binding my buffers, I get garbage on the screen. No errors, just...
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    Order of function calls

    I have a question about the order of these function calls:

    glBindBuffer(GL_ARRAY_BUFFER, buf1);
    glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, 0);
    glBindBuffer(GL_ARRAY_BUFFER, 0);

    Is it...
  10. Vertex Arrays, Buffer Objects, and Vertex Array Objects

    I'd like to use this post to start a thread on vertex arrays, buffer objects, and vertex array objects. I am sure that a lot of people are, like me, confused about these items. So, I'd like to...
  11. Vertex Arrays vs Vertex Array Objects vs Buffer Objects

    I have downloaded the OpenGL specs for versions 2.0, 2.1, 3.0, and 3.2core. In the version 2.0 and 2.1 specs I see in the table of contents sections for Vertex Arrays and Buffer Objects (sections...
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    Accepted practice for VBO's

    I am new to OpengGL. The tutorials that I have read explain how to pass vertex data to the GPU using vertex buffer objects. I have this working fine for a single mesh. For a scene consisting of...
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