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Type: Posts; User: Marc

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    Re: Normals and GL_TRIANGLE_STRIP

    OpenGL is a state machine, which means, that any variable stays the same until you modify it. That means, that you could set the normal one time and then draw thousands of quads/triangles/whatever...
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    Re: Nvidia drivers: how to use block transfer?

    Thank you, I will try it tonight.
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    Nvidia drivers: how to use block transfer?

    Hello everybody!

    I have a question, which is may be simple to answer.
    I updated the driver of my Nvidia graphics card. The old driver supported page flipping and block transfer for double...
  4. Re: switching screen resolution increases performance??

    Because the memory on your graphics card has to be read more frequently for showing a picture on your monitor:
    1600x1200x32@120Hz => 879MByte/s
    1600x1200x32@60Hz => 439MByte/s
    The memory...
  5. Re: Code to start another program as Screensaver?

    Ha, it works now! I made a mistake in the message loop. Now I can start another program as the actual screensaver.
    Thank you all for your reply, it helped me to find the mistake.
    CU
    Marc
  6. Re: Code to start another program as Screensaver?

    Oh, of course my screensaver uses OGL. And it starts very well. It just doesn't become hardware accelerated. The workaround to write an intermediate program to start the final screensaver is in fact...
  7. Re: Code to start another program as Screensaver?

    Thank you for the information!
    So this is also no option.
  8. Re: Code to start another program as Screensaver?

    It HAS something to do with OGL because it affects an OGL program which doesn't run as a screensaver because of strange Intel graphics drivers. Perhaps anyone else had the same problem with OGL...
  9. Code to start another program as Screensaver?

    Hello all!

    Has anyone some code for me to start a 'normal' program as screensaver? The normal program is in fact a screensaver but discussed in previous topics, Intel graphics doesn't allow HW...
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    Re: RGB or BGR for textures?

    Most images are stored in BGR-format, so it is more simple to load an image and use it as a texture. For RGB you would have to swap the R and the B bytes. The BGR(A) format is a quite old extension...
  11. Re: OpenGL-Screensaver behaves strange with Intel graphics

    Thank you. Now I know what's 'wrong'.
    The people in the other topics say that you should buy a proper graphics card and throw Intel graphics away. That is a little bit hard for integrated notebook...
  12. OpenGL-Screensaver behaves strange with Intel graphics

    Hello everybody!

    I hav a maior problem with an own screensaver for Windows XP. I wrote a quite normal program (yes I remember the command switches) which does a few things on the screen and it...
  13. Thread: Timer and OpenGL

    by Marc
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    Re: Timer and OpenGL

    It would be nice to know, what your wish is...
    (or where the problem is)

    Marc
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    Re: The foibles of MS...

    *ggg* another good reason to use OpenGL!!!
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    Re: Blending errors on Nvidia GF4MX460 (OT?)

    Oooops...Hmmm...should read more...

    Thanks!
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    Re: Blending errors on Nvidia GF4MX460 (OT?)

    I switched off the GL_POLYGON_SMOOTH and everything works fine!!!! THANKS!
    Why do all these quality options give bad results? Why are these options ingnored by old graphic cards and interpreted...
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    Re: Blending errors on Nvidia GF4MX460 (OT?)

    OK, and my problem is, that on this special graphics card the pixels along shared edges are drawn twice resulting in a bright line around every blended triangle (as long as the blend color isn't...
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    Re: Blending errors on Nvidia GF4MX460 (OT?)

    Quads, quad strips and triangle strips.

    If I'm right, in OGL adges shouldn't be rendered twice, isn't it?
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    Blending errors on Nvidia GF4MX460 (OT?)

    Hello all!

    This might be a little be off topic, but perhaps there is an on topic solution.
    My problem: I have a new ASUS V8170pro Grafics card with a GeForce 4 MX 460 and 64MByte. When I use...
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    Re: OpenGL solid models

    Assume that your objects are completely made up of bosons. They are allowed to be at the same place at the same time. Then you don't have to care about it ...
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    Re: 3D-Rotating Algorithm

    Jeff Moloffee has a sample space shooter on his website: nehe.gamedev.net. There so called quaternions are used for free movement in space. I didn't read the code, but from the description it should...
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    Re: Source Code for Complex Models?

    Hmmm... I looked at their web-site. They have changed everything. But perhaps you find an old shareware-version in the internet.
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    Re: Source Code for Complex Models?

    .....???? (Muppets, smurfs, snorkies ??? I'm wrong here!!!)

    There is a program out there, called '3D Exploration' from 'X Dimension Software' (http://www.xdsoft.com/explorer/) which can load a lot...
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    Re: Rendering BIG pictures

    I tried glFrustum and it works great! It's quite easy if you know what to look for.
    Thank you very much.

    Marc
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    Rendering BIG pictures

    Hi all!

    I don't know, if this is really an advanced coding question (at least for me): I would like to render a picture with a higher resolution than the screen (lets say hmmm... to make it more...
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