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Type: Posts; User: CarstenT

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    glMapBufferRange() ...dynamic drawing?

    Hi All,
    I've got an app that works well on static data, and it's time to try to work on data click'ed in and dragged by the mouse. I've made the assumption that glMapBufferRange would fit the...
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    Hi reto.koradi, I'll have a look at it. I'm...

    Hi reto.koradi,
    I'll have a look at it.
    I'm using a texture_rectangle and I believe that it has a limited set of texture-parameters to choose from .. but, We'll see. The problem is in the...
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    globe-texture without a seam?

    Hi all,

    I'm beginning to wear thin on how to avoid a seam when making 'the blue planet', pasting a texture on a spheric set of vectors.
    What's the magic ingredient?
    I'm running through 180 sets...
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    hi aqnuep, thanks. .. I figured it would be...

    hi aqnuep, thanks. .. I figured it would be something like that
  5. Replies
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    draw line, line-size ... opengl 3.3 ?

    Hi all,
    I cannot seem to find a way to produce a line thicker than one pixel. Is this abillity disabled in the core-forward compabillity-profile of OpenGL 3.3?
    The lines I use does not seem to be...
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    Hi Brokenmind, Thanks for taking the time. It's...

    Hi Brokenmind,
    Thanks for taking the time. It's really nice to have some correct code. I've been spending way too much time on it. Anyway, I went home and did something that must be somewhat...
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    opengl dependent on handed-ness?

    Hi,

    I've flipped the usual righanded coordinatesystem to a lefthanded by inserting an 'almost' diagonal matrix between the cameraMatrix and the projectionMatrix, setting the z-component to -1. My...
  8. Thanks nenad, I think that I've got the gist! ...

    Thanks nenad,
    I think that I've got the gist!
    Enough to work with for a while.
  9. Hi nenad, Ok, I've copy/pasted some of my...

    Hi nenad,


    Ok, I've copy/pasted some of my functional code into the program. First task is compiling a shader

    vertShader = glCreateShader(GL_VERTEX_SHADER);

    GL_VERTEX_SHADER is not...
  10. Hi Dan, I tried both the device-context and...

    Hi Dan,

    I tried both the device-context and the render-context. Both gives a compiler warning (as described above), but compile. The output is an empty string.
    I added the function
    const char...
  11. Hi nenad; Well seen! Yes, it compiles but now...

    Hi nenad;

    Well seen! Yes, it compiles but now complains on "too few arguments" for function wglGetExtensionsStringARB().
    I added the device-context, hDC as argument. The compiler warning is that...
  12. Hi nenad*, When adding this line in code...

    Hi nenad*,
    When adding this line in code
    wglGetExtensionsStringARB() ;
    I get the error that wglGetExtensionsStringARB() is not a function.
    I think that I already tried something like this
    char...
  13. Loading extensions from scratch, win32 & OpenGL

    Hi all,
    Inspite of all advices I'm trying to load opengl function-pointers. I'm using code::blocks and mingw and added
    #include <wglext.h>
    #include <glext.h>

    to a functioning opengl-template...
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    The limit could turn out to be the indices-buffer...

    The limit could turn out to be the indices-buffer .. if you draw indexed.
    I swing 1.4 mill vertices flavlessly on a modest pc using a setup almost identical to this:
    ...
  15. GLU + opengl 3.3 core ... would it work together?

    I have looked at a GLU user references and it looks as something that fits into the fixed pipeline ..
    I've included GLU in my GLFW setup, but not yet used it. It would be easy to build a needed...
  16. oh .. forgot all about the GLU library. It's got...

    oh ..
    forgot all about the GLU library. It's got a tesselator ..
    It doesn't look like something for newbees (like me)

    http://www.songho.ca/opengl/gl_tessellation.html
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    "input now working" .. a typho? I suppose that...

    "input now working" .. a typho?
    I suppose that input doesn't work, right?

    is it glut that has a sticky-key function or state to asure key-input to be caught? I think so.
  18. Are you working in 2D ? .. The general solution...

    Are you working in 2D ? .. The general solution in 3D is probably intollerably messy to deal with.
    Doing the general solution in 2D is a fun geometry-problem ;o) but usually pops up when your bussy...
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    hi Sczerzuja Check if deltaAngle = 0.005f is...

    hi Sczerzuja

    Check if deltaAngle = 0.005f is large enough to make a visual difference.
    Check if
    if (deltaAngle)
    is true when you expect it to.
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    you are asking for too much. one of many:...

    you are asking for too much.

    one of many:
    http://en.wikibooks.org/wiki/OpenGL_Programming
  21. hi Kolkon, Sorry for my absence. This haphazard...

    hi Kolkon,
    Sorry for my absence.
    This haphazard tut
    http://www.loria.fr/~roegel/cours/iut/opengl/addison.pdf
    uses
    glRotatef(spin, 0.0, 0.0, 1.0);
    and gets a rolling motion, like you.
    You may...
  22. kolkon, get your code on the table. I'm not too...

    kolkon,
    get your code on the table.
    I'm not too confident in fixed functionality, but it's very basic.
    You are probably rotating the camera where you expect to rotate the object ..
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    programming damages??

    Hi folks,

    I'm a newb that would like to exploit your experience on 'what happens when you do things wrong' .. in the sense of the worst possible damages you can produce. One does not enter the...
  24. could be because opengl uses another set of axis....

    could be because opengl uses another set of axis. Think of it as extending a 2d x,y plain (y up/down, x left/right) .. adding z as the in-out of that 2d plane. In that sense your rotation obeys the...
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    glew32s, mingw & makefile

    Hi all,

    After a long time I eventually got GLEW compiled in msys and mingw. It's been an indirect compilation using a makefile written for mingw.
    I've downloaded glew_1.10.0. It contains a config...
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