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Type: Posts; User: Agent D

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  1. Replies
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    271

    I asssume you push the view&projection matrices...

    I asssume you push the view&projection matrices here to restore them later and draw something else on the current transformation?


    So you load an identity matrix into what exactely? Modelview?...
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    180

    OpenGL(R) is a standardized API for hardware...

    OpenGL(R) is a standardized API for hardware accellerated rasterization. It doesn't deal with platform specific details like creating a
    rendering context or user input.

    Similarly, while it does...
  3. From what I understand, you have some display...

    From what I understand, you have some display hardware that can only display the contents of a specific memory location and doesn't have any hardware drawing commands, let alone OpenGL supprt? In...
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    283

    Ther are two versions of CreateWindow (and...

    Ther are two versions of CreateWindow (and similar functions): CreateWindowW that supports wide characters and CreateWindowA that doesn't.

    If you have "UNICODE" defined via the preprocessor...
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    Do you just have a vague feeling or an actual...

    Do you just have a vague feeling or an actual stack trace that tells you where the segfault happens?

    A segfault means that you are accessing virtual memory addresses that aren't mapped.

    If it...
  6. Those are rather complex, high level tasks. Doing...

    Those are rather complex, high level tasks. Doing this with OpenGL(R) or Direct3D(R) is possible, but amounts to quite some work,
    due to their lowlevel nature. Among other things, you would have to...
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    Yes, in the fixed function pipeline, the color...

    Yes, in the fixed function pipeline, the color set with glColor* stays the same until it is changed
    and all further vertices use that color.

    When your geometry is textured, the texture color is...
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    358

    An infinite loop inside a shader program is a bad...

    An infinite loop inside a shader program is a bad idea. Some implementations (I know of atleast one where I ran into that problem
    with OpenCL(R)) have a watchdog timer that stops shader evaluation...
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    592

    I took a quick look at the GLX spec, and it...

    I took a quick look at the GLX spec, and it doesn't actually say anything about the GL version of the context created. There is only an appendix that matches
    GLX version with supported GL versions...
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    Are you sure that is a 16 bit value? I count 32...

    Are you sure that is a 16 bit value? I count 32 bits in 0xffffffff.

    If the integer represents a direct color value (e.g. X bits are used for red, Y bits for green, ...), you simply scale the...
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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...
  13. 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...
  14. Thread: 3D line

    by Agent D
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    1,143

    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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    668

    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...
  18. Thread: GLEW License

    by Agent D
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    1
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    1,126

    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

    ...
  19. 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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    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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    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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    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...
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