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Type: Posts; User: Agent D

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  1. Replies
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    For something like overlapping textured...

    For something like overlapping textured rectangles, you can simply render them from back to front (start with the one at the back, then draw the one in front of it and so on). The later one simply...
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    As you already mentioned, the images corespond to...

    As you already mentioned, the images corespond to six different spacial direction. Cube maps are typically used for reflections of the sourounding environment, or shadow maps
    of point lights.

    For...
  3. Typical 3D model file formats like STL don't use...

    Typical 3D model file formats like STL don't use any unit scaling for their data (specialized files specific to CAD programs usually do), i.e. you have to
    rely on whoever designed the 3D model to...
  4. Thread: 3D line

    by Agent D
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    1
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    179

    You don't do that sort of thing with OpenGL(R)...

    You don't do that sort of thing with OpenGL(R) and you don't do line segment drawing in 3D.

    First of all, OpenGL(R) is a standard API for (potentially) hardware accellerated 3D graphics. There...
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    So you either changed more than I suggested, or...

    So you either changed more than I suggested, or it already didn't work before.

    Can you be a bit more specific? Are you talking about a runtime or compile time error message? What is the exact text...
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    From your description, I assume antTweakBar has...

    From your description, I assume antTweakBar has some functions for GLFW integration that it suggests be passed as callbacks to GLFW,
    but you already passed pointers to your own code?

    Have you...
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    The file size in the image is little endian...

    The file size in the image is little endian. This code stores the integer as little endian irregardless of the
    machines actual endianness.

    The code assumes that a character has 8 bits. The first...
  8. Thread: GLEW License

    by Agent D
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    1
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    897

    The GLEW source code is available under 3...

    The GLEW source code is available under 3 licenses:


    Modified BSD license
    Mesa 3D license which is basically a renamed X11 license
    Khronos license which is also a arenamed X11 license

    ...
  9. You appear to be using the words "load" and...

    You appear to be using the words "load" and "install" interchangably. What exactely are you trying to accomplish? Are you talking about installing
    drivers on the system, or about an application...
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    First of all, this has absolutely nothing to do...

    First of all, this has absolutely nothing to do with OpenGL(R) and is a very basic question related to the programming language & toolchain you are using.

    Second, your Core.h file (I assume this...
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    Instead of developing their own, proprietary...

    Instead of developing their own, proprietary drivers Intel participates in the development of Mesa3D, a library that tries to implement the
    OpenGL(R) spec with multiple backend drivers for hardware...
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    The Oculus acts as a simple, very wide monitor....

    The Oculus acts as a simple, very wide monitor. You create a fullscreen window. You render the left eye view to the left half of the screen and the right eye
    view to the right half.

    The images...
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    502

    I'm not sure if GL/glx.h is guaranteed to include...

    I'm not sure if GL/glx.h is guaranteed to include GL/gl.h that contains the actual decralations, but even if, some functions
    might not be declared in the gl.h header (i.e. the header is written...
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    543

    What "hasn't worked"? You later mention crashes....

    What "hasn't worked"? You later mention crashes. If it crashes on all machine except your development system, you better go and fix that first. What help could it be if other people try it, when you...
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    813

    First of all, since OpenGL(R) is a specification...

    First of all, since OpenGL(R) is a specification and not a library, memory leeks are problems of the specific implementations (e.g. Nvidia(R) or AMD drivers). How did you measure increased memory...
  16. What does that mean? Which one of the threads...

    What does that mean? Which one of the threads calls the function?


    Is it by any chance a single buffered context? I had a similar problem and it turned out that for single buffered contexts...
  17. glLoadIdenty does not multiply with the identity...

    glLoadIdenty does not multiply with the identity matrix (that would be completely pointless), it overwrites the current matrix with the
    identity matrix. If you set up a perspective projection matrix...
  18. The simplest way to visualize the texture...

    The simplest way to visualize the texture coordiantes is to write them out as color in the fragment shader.

    For 2D texture coordinates, the s component ends up in the red channel and the t...
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    You can use some bounding shape (like a...

    You can use some bounding shape (like a rectangle, or a box in 3D) to quickly determine if an object could
    be hit or not, which is of course much faster than processing each potentially visible...
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    1,237

    You don't need a special software to write C code...

    You don't need a special software to write C code or programs that uses OpenGL(R). Any text editor will do.

    You can take whatever text editor or IDE you like.

    Visual Studio(R) is an IDE....
  21. Thread: ufo

    by Agent D
    Replies
    8
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    1,326

    To sumarize: You post a large blob of code, say...

    To sumarize: You post a large blob of code, say that there is a 6 line function you don't understand and ask for an explanation.
    You previously posted another snippet from the code above, demanding...
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    First of all, there is no such thing as a camera...

    First of all, there is no such thing as a camera in OpenGL(R). The gluLookAt function is a function from the old utility
    library that pieces together a view matrix from the input and lookat...
  23. GCC (or clang) lets you specify additional linker...

    GCC (or clang) lets you specify additional linker input directories using the "-L" option in the form of "-L<path>".
  24. Is the library location (/usr/lib/i386-linux-gnu)...

    Is the library location (/usr/lib/i386-linux-gnu) set by a repository package or did you manually move it there?

    Have you looked inside that directory and tried to set the linker path for the...
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    How do you compute the projection matrix?

    How do you compute the projection matrix?
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