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Type: Posts; User: JoshB

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  1. Multithreaded Issue Rendering To Multiple Windows That Have The Same Pixel Format

    Hello All,

    I am using OpenGL to facilitate cross platform video playback (Mac / Windows) - a pipeline performs the rendering of video frames and then at the end of the pipeline there exists a...
  2. Re: GL_DST_ALPHA blending different under Mac vs Win

    Ooops. It was GLUT, on Windows GLUT_ALPHA must be explicitly supplied to glutInitDisplayMode() whereas on Mac this is not necessary.
  3. GL_DST_ALPHA blending different under Mac vs Win

    Hello All,

    Pertaining to the same project as my last post, that being the crossplatform (Mac/Win) visualization of a timeline of a NonLinear Editor (a la Final Cut Pro or Premiere Pro) using...
  4. Re: OpenGL Context Management in Multithreaded Environ

    Thanks, guys. I will take a look at the links provided
  5. OpenGL Context Management in Multithreaded Environ

    Hello All,

    I have some questions pertaining to the management of multiple OpenGL contexts in a multithreaded environment (and pertaining to deterministically drawing into these contexts). I have...
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    wglMakeCurrent yields GetLastError 3221684230

    Hello everyone,

    I have scoured the web for an answer to this but have come up empty handed...

    Direct Problem:
    I am experiencing a situation where I am calling wglMakeCurrent() with an HDC and...
  7. Thread: Texture Problems

    by JoshB
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    3
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    401

    Re: Texture Problems

    Though, now that I think of it, the 2050 x 2050 x 4 texture doesn't render properly either and that is well below the 64 MB mark. . .
  8. Thread: Texture Problems

    by JoshB
    Replies
    3
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    401

    Re: Texture Problems

    Thanks.

    Yes. Smaller textures work fine.

    I tried out the proxy texture concept to which you linked. In the proxy test I used a size of 4098 x 4098 with an identical *format* as my real texture...
  9. Thread: Texture Problems

    by JoshB
    Replies
    3
    Views
    401

    Texture Problems

    I experiencing issues when using large textures in the following code environment where I am using OpenGL to visualize image projections:

    I am projecting the textures onto polys and I wish to...
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    Re: a couple (likely obvious) questions

    I, admittedly, was trying to cut corners in a 2D image skewing package. Which leads me to ask a different question. Does anyone know if you can RETRIEVE a matrix in OpenGL. They talk about loading...
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    a couple (likely obvious) questions

    Question #1:

    You are, in OpenGL, able to write a rendered frame into a buffer that you would have direct access to, allowing you to save the bitmap information out to a file, correct? You...
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    Re: Image information and OpenGL

    Thanks a bunch. I will look into both of these avenues.

    Josh
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    Image information and OpenGL

    Does anyone know of a good source anywhere that has information on the topic of reading in image data of different types? You know, details on how to bring in any type of image information into an...
  14. Thread: image projection

    by JoshB
    Replies
    3
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    386

    Re: image projection

    Thank's for the link.
    I will take a look.

    Josh
  15. Thread: image projection

    by JoshB
    Replies
    3
    Views
    386

    image projection

    Hello there,
    I was wondering if anyone could help me out with an image projection question. I am wanting to be able to project a bitmap image onto a poly(s) in the fashion that a slide projector...
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