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  1. Replies
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    I believe the following concrete command would be...

    I believe the following concrete command would be more helpful for a beginner:
    It is highly likely that the asker would need gl3w, and then s/he doesn't know the linking flags ... but that's a new...
  2. I have completely got it. Thank you very much, ...

    I have completely got it. Thank you very much, john_connor.
  3. confusion in understanding the behavior of glDrawArraysInstancedBaseInstance

    I am trying to figure out what the meaning of the last parameter of the glDrawArraysInstancedBaseInstance API is. Following is the doc of this API excerpted from the Red Book:

    2577

    I don't...
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    Is glutSolidSphere deprecated?

    ... Seems not because I googled this question but found no answer. However, when I tried to use this function, it seemed that I have to use deprecated OpenGL functions like glMatrixMode,...
  5. Thank you for the reply. It is my homework; I...

    Thank you for the reply. It is my homework; I wanna take advantage of recent OpenGL to speedup my program a little bit. It seems at least the containing geometry remains unchanged in GPU so I can...
  6. What bebefit can I enjoy in rigid body particle system if I use recent OpenGL pipe?

    I am doing a simulation of rigid body dynamics system. The system is a collection of particles bouncing back and forth in a containing geometry like a cube. The positions of particles are computed in...
  7. How to activate subroutine uniform and subroutine?

    I strictly followed instructions in section "Shader Subroutines" of Chapter 2 of the red book for OenGL 4.5, but I always got -1 return from glGetSubroutineUniformLocation and glGetSubroutineIndex....
  8. I got it. Thank you very much, Dark.

    I got it. Thank you very much, Dark.
  9. Is gl_Vertex exactly the value transferred from glVertex3f?

    Suppose I am using glVertex3f to transfer vertex position while at the same time using glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(...); to set up the model-view transformation. Is the...
  10. To moderator: I'd like to move this thread to...

    To moderator: I'd like to move this thread to "OpenGL coding: beginners" board. Please help me delete it. Thanks.
  11. Rotate direction with regard to X axis is reversed

    Below is the code that rotates a cube, excerpted and modified from Edward Angel's textbook. We can specify the axis about which to rotate by clicking different mouse key:


    //
    // Display a color...
  12. Rotate direction with regard to X axis is reversed

    Below is the code that rotates a cube, excerpted and modified from Edward Angel's textbook. We can specify the axis about which to rotate by clicking different mouse key:


    //
    // Display a color...
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    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!
  14. 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.
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    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...
  17. 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...
  18. Thank you, @Aleksandar.

    Thank you, @Aleksandar.
  19. 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...
  20. 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.
  22. Replies
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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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