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Type: Posts; User: qnext

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  1. Replies
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    I have test this and it's not working ... same...

    I have test this and it's not working ... same artifact and more ... And I don't understand why I need shift from -0.5
  2. the biggest problem is that I imagine you use...

    the biggest problem is that I imagine you use GL_LUMINANCE to transfert each single channel ... and it seems that this format is not supported without swizlling by the driver to rgba ... I have the...
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    intel map texture extension

    Is there any sample to explain how to use the new opengl intel extension ?: http://www.opengl.org/registry/specs/INTEL/map_texture.txt
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    3
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    970

    glsl bilinear and artifact on same scale

    I need to implement a glsl bilinear filter (I can't use GL_LINEAR because i am doing YUY2 ->RGB convert, so I have set this to GL_NEAREST). I have a classic bilinear filtering like this :


    void...
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    regardings double ... i was talking about double...

    regardings double ... i was talking about double pbo (not double format)...
    I am certain that GL_BGRA is accelerated on nvidia and amd card, but I am not sure that GL_Luminance is as fast as GL_BGRA...
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    GL_LUMINANCE and pbo : slow !

    I am trying to play a movie in yuv 420 ... so I have Three texture (one for lumi, one for u, one for V) with only one channel. When I use pbo it seems that it's slower than playing the same yuv files...
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    pbo update : refresh rate non constant

    Hi,

    I use windows Seven, nvidia card, double buffering, vsync on
    I wants to use pbo to improve movie update to texture (large movie 5760x1080 resolution!) ... I am near ok with standard...
  8. Thread: Bezier patch

    by qnext
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    0
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    405

    Bezier patch

    Hi,

    I need to have a m x n bezier patch. I am using Qt3d to draw bezier patch but the bezier patch are not joined : I am trying to find how to calculate the control point to have smooth joined...
  9. extract translation/ euler rotation from modelview

    Hi,

    I need for an augmented reality application convert the finded opengl modelview (I have a find a way to have a modelview ... but it's not exact ... so to understand I hopes to recover the...
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    Re: Pan tilt Camera and augmented reality

    some news ... I have done some modification using now Quaternion to set pan and tilt, and it works if I find the calibratedModelView when camera is horizontal (no tilt in calibration Model View). in...
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    Re: Pan tilt Camera and augmented reality

    Thanks for your answer ... I will check this but my problem for now is that it don't works even if tilt is set to Zero (no influence) when I move only the pan axis ?? and if move in the same way only...
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    3
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    2,487

    Pan tilt Camera and augmented reality

    Hi,

    I am doing an augmented reality application : I have a known real 3D object ... a camera mount on an high end Pan tilt unit (very precise) is watching the 3D Object, I need to add augmented...
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