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Type: Posts; User: chachacha

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    glutMouseFunc() question

    As practice I have always been putting a "glutPostRedisplay();" at the end of the mouse callback routine specified by "glutMouseFunc(mouseCallBack);".

    However, now I notice (for at least one...
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    Bingo! Thanks. That's exactly what it was.

    Bingo! Thanks. That's exactly what it was.
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    Thanks for the code. Tried it and the size is...

    Thanks for the code. Tried it and the size is exactly as mine 752 x 798. I am using FreeGlut -MSVC-2.8.1 and the platform is Win10/MSVS 2015.
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    Both programs are pretty trivial, basically...

    Both programs are pretty trivial, basically window creation in main(). Here are the pixel dimensions of the created windows:
    FreeGlut:752 x 798
    GLFW: 502 x 546

    So, neither is what's asked...
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    GLFW vs. FreeGlut: Initial window size

    (Mods, I got no response in the Toolkits forum so posting here)

    The size of the OpenGL window created using GLFW with the statement

    glfwCreateWindow(500, 500, "test.cpp", NULL, NULL);

    is a...
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    That explains it, thanks.

    That explains it, thanks.
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    GLM rotate implementation

    A program I have runs fine using GLM 0.9.4.3 (from 2013 when it was developed) but starts acting up if I use more recent GLM 0.9.7.5. It looks like the problem is with rotate. Are there changes with...
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    Transform feedback problem

    Mods:
    I am desperately trying to get some help with this issue. Therefore, the crosspost from the beginner's forum with the hope that some kindly guru in this one take a look. Please allow, thanks....
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    Thanks, mamannon. Sorry for the late reply, had...

    Thanks, mamannon. Sorry for the late reply, had to take off for a day.

    Actually, that's one of the first things I tried. Didn't work. Not sure what to do.
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    Transform feedback problem

    Greetings:
    I am trying to write a particle system using transform feedback starting as simply as possible: one particle which moves straight until it hits a boundary to be replaced by two with...
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    Thanks a lot, GClements. I did know that the TCS...

    Thanks a lot, GClements.
    I did know that the TCS is optional. What I was wondering if it is at all needed. So here's what I understand from what you say:

    The TES could potentially do all of the...
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    Is the TCS really necessary?

    Greetings:
    This is possibly a dumb question that came to mind reading about the tessellation shader: Is the TCS really needed?

    Here's where I am coming from. The TES can see the all the output...
  13. Thanks much.

    Thanks much.
  14. Turning off the programming pipeline/drawing text

    I need to add labels to my scene and thought easiest to turn off the programmable pipeline and use GLUT calls. Running into problems I now have two questions:

    (1) Tried


    glUseProgram(program)...
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    I am trying to post a follow-up question with...

    I am trying to post a follow-up question with about 20 lines of text and some code snippets but the system will not allow it. Tried several times but after each:

    "Post denied. New posts are...
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    Thanks, GClements. I had a follow-up question...

    Thanks, GClements.

    I had a follow-up question but my post (with code wraps and fair bit of text) keeps getting denied. No idea why. I'll try again tomorrow. Hope this 2-line post gets through now.
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    Normal mapping question

    I've been reading on-line tutorials about normal mapping. Mostly makes sense except for this piece in the fragment shader:

    vec3 BumpMapNormal = texture(gNormalMap, TexCoord0).xyz;
    ...
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