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  1. Thanks a lot, carsten neumann. I'm so glad to see...

    Thanks a lot, carsten neumann. I'm so glad to see my GT640 card support GL_ARB_gpu_shader_fp64. Cool!
  2. where has built-in variable "gl_FragColor" gone in OpenGL 4.4?

    The book "Interactive Computer Graphics, A Top Down Approach with Shader Based OpenGL, 6th Edition" shows a minimum snippet of fragment shader in page 86 as follows:
    ...
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    Thank you very much. Bookmarked.

    Thank you very much. Bookmarked.
  4. why there is no double version of glUniform?

    I checked the webpage http://www.opengl.org/wiki/GLAPI/glUniform but noticed that glUniform API seems not have double version, i.e., something like glUniform3d for dvec3 uniform variables. Does this...
  5. I'm self-studying OpenGL by reading that book...

    I'm self-studying OpenGL by reading that book because I think that book seems most up-to-date, so I was trying everything mentioned in that book. But now I can't help but to believe that the only...
  6. Thank you, @Aleksandar.

    Thank you, @Aleksandar.
  7. Where does variable "GL_version_4_3" come from?

    The book "OpenGL programming guide: the official guide to learning opengl, version 4.3" says in page 837 that there is a variable named "GL_version_4_3" in GLEW library that can determine the OpenGL...
  8. How to access OpenGL Extensions under Windows?

    The book "OpenGL programming guide: the official guide to learning opengl, version 4.3" claims in page 847:

    http://i59.tinypic.com/30b2p08.png

    But when I add the code
    int...
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    I have solved the problem. Thank everybody.

    I have solved the problem. Thank everybody.
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    Sorry I don't understand your question. I think I...

    Sorry I don't understand your question. I think I have clearly described my situation in my original post.
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    As I said in the original post, I determine...

    As I said in the original post, I determine OpenGL version using a tool called "OpenGL Extensions viewer 4.1.7". I also attached an image of the screenshot in it. There is another tool call "GLInfo"...
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    I did this but doesn't work (I deleted the mesa...

    I did this but doesn't work (I deleted the mesa opengl32.dll (about 4.9M) and restored the original opengl32.dll (about 1M), the OpenGL version goes back to 1.1. Then I reinstalled the newest driver...
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    I'm sorry I didn't catch you. Could you please be...

    I'm sorry I didn't catch you. Could you please be more specific?
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    How to make OpenGL 4.4 available?

    Hi,

    I have just installed a nVidia Geforce GT640 graphics card. The newest driver provided by nVidia is claimed to support latest OpenGL version 4.4. But after I installed the newest driver...
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