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Type: Posts; User: hmwill

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    Re: Texture problem on win32 PC application

    Win32 desktop is not a supported platform for this library, so you are somewhat on your own. Why don't you just use http://sourceforge.net/projects/dgles?

    - HM
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    Re: Rewrite this code for Opengl ES 1.0

    Looks like you are traversing a linked list containing your data. That is not going to work; you will need to convert to array of structs or a set of arrays for your geometry data. How to do this...
  3. Re: Problem with Vincent 3D Library and perspective projection

    You're welcome. I really need to get around re-releasing the library with a couple of bug fixes...

    - HM
  4. Re: Problem with Vincent 3D Library and perspective projection

    Make sure to comment out the following lines in ContextRender.cpp (671 + 672):

    671 if (rasterPos->m_ClipCoords.w() < 0)
    672 rasterPos->m_ClipCoords = -rasterPos->m_ClipCoords;

    - HM
  5. Re: Initial version of Vincent SC available on Sourceforge

    The download instructions from SVN are here: http://sourceforge.net/svn/?group_id=239198.
    I'll probably prepare a self-contained download package over the holidays/new year.

    - HM
  6. Initial version of Vincent SC available on Sourceforge

    The Vincent SC project is working on a portable implementation of the OpenGL SC API specification. An initial code base for VIncent SC is now available in the SVN repository on Sourceforge and can be...
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    Re: Developing OpenGL ES on Windows?

    http://sourceforge.net/projects/dgles

    There are also vendor specific development kits.

    - HM
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    Re: Breaks appearing while using GL_LINE_STRIP

    PS: How about using a specialized library, such as egml (http://www.tesbv.com/index.php?site=TES_EN_2_egml).

    - HM
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    Re: Breaks appearing while using GL_LINE_STRIP

    Looks like an awfully tight timeline...

    You might need to investigate the issue yourself then, and maybe come up with a fix to contribute back to the project???

    Thanks,
    HM
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    Re: Breaks appearing while using GL_LINE_STRIP

    It's probably going to be one more week; I'll let you know. But just to set expectations, that version is not going to include dynamic code generation yet, which is still in the works.

    - HM
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    Re: Breaks appearing while using GL_LINE_STRIP

    Yes, there are known bugs in the old code base. I fixed that for the SC version.

    - HM
  12. Re: glPushAttrib(GL_TEXTURE_BIT) replacement in opengl-es

    I'd guess you will need to use the corresponding state getter calls (glGetTexParameter... etc.) to retrieve all necessary settings, and later restore those values (instead of glPopAttrib).

    - HM
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    Re: Breaks appearing while using GL_LINE_STRIP

    Which implementation is this?

    - HM
  14. Re: OpenGL ES 1.1 driver development without OS support

    Sure, there is no reason why you couldn't. I have Vincent SC running on a bare-bones Altera Nios II SoC on an FPGA.
    However, you will probably need to work with the IP vendor (or integrator) of the...
  15. Re: not able to see the display of OpenGLES with EGL

    Glancing over the code, I am 99% certain that numConfigs is 0 after eglChooseConfig.
    Also, the old Vincent code does not implement API binding nor provide any interoperability with any OpenVG...
  16. Re: vincent not working on wince device with goforce5500

    Well, Rasteroid is NVidia, too, these days.

    - HM
  17. Re: vincent not working on wince device with goforce5500

    You will need to ask NVidia for driver support.

    - HM
  18. Thread: Text on Vincent

    by hmwill
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    Re:

    Vincent SC has support for glBitmap and display lists, so both ways (bitmap and vector fonts) explained in the redbook examples will work.

    - HM
  19. Re: Is it possible to implement OpenGL ES for my target board ?

    It probably depends how much work you plan to put into this.

    In principle, the Vincent 1.X libraries should be portable to that environment, but you'd need to work yourself on migrating the...
  20. Re: Problem with glLightModelf in OpenGL ES SC 1.0

    As a matter of fact, that is also my interpretation in Vincent SC:


    void VPMT_ExecLightModelf(VPMT_Context * context, GLenum pname, GLfloat param)
    {
    VPMT_ERROR(context, GL_INVALID_ENUM);
    ...
  21. Thread: Vincent SC Demo

    by hmwill
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    Vincent SC Demo

    First preview of Vincent SC, the new fixed function pipeline implementation. More info as we approach Siggraph.

    - HM
  22. Thread: Vincent SC Demo

    by hmwill
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    Vincent SC Demo

    I posted a demo of the new Vincent SC library on YouTube. The demo is showing the Rollercoaster demonstration, which was also ported to OpenGL ES for the Coding Challenge back in 2005.

    The take...
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    Re: glLineWidth problems...

    You might want to check for the supported line width range on the device. Per API spec, lines wider than 1 pixel do not necessarily need to be supported.

    - HM
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    Re: OpenGL ES on WinCE 6.0 - x86 platform

    I am in the process of preparing a new release of an OSS implementation of the fixed-function function pipeline under the "Vincent" moniker, and am currently targeting Siggraph as release date for an...
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    Re: OpenGL-ES/EGL implementation

    If you do not want to use Vincent "because of copyright matters", would you be able to share your concerns?

    - HM
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