Thread: Creating Patterns

  1. #1
    left crog... back when? incognito's Avatar
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    Creating Patterns

    This function

    Code:
    The glLineStipple function specifies the line stipple pattern.
    
    void glLineStipple(
    
        GLint factor, 	
        GLushort pattern 	
       );	
     
    
    Parameters
    
    factor
    
    A multiplier for each bit in the line stipple pattern. 
    If factor is 3, for example, each bit in the pattern 
    will be used three times before the next bit in the pattern is used.
     The factor parameter is clamped to the range [1, 256] and defaults to one.
    
    pattern 
    
    A 16-bit integer whose bit pattern determines
     which fragments of a line will be drawn when 
    the line is rasterized. Bit zero is used first, and the default pattern is all ones.

    Well I want to learn how to make those patterns, can't find anything on it online, any ideas?
    Last edited by incognito; 03-15-2003 at 10:06 PM.
    There are some real morons in this world please do not become one of them, do not become a victim of moronitis. PROGRAMMING IS THE FUTURE...THE FUTURE IS NOW!!!!!!!!!

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    "The expert on anything was once a beginner" -Baseball poster I own.


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  2. #2
    left crog... back when? incognito's Avatar
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    example.

    Code:
      GLubyte mask[] = {
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x7, 0xFF, 0xF0, 0x0,
        0x1F, 0xE0, 0x1E, 0x0,
        0x7E, 0x20, 0x01, 0x0,
        0x7F, 0x39, 0xAB, 0x6F,
        0xFC, 0xA6, 0xAB, 0x6F,
        0xF8, 0x66, 0x6E, 0xEC,
        0xF8, 0x6A, 0x2A, 0x6C,
        0xFC, 0x80, 0x02, 0x2C,
        0x7F, 0x0, 0x1, 0xC8,
        0x7F, 0x0, 0x1, 0xC8,
        0x1F, 0xC0, 0x0C, 0x0,
        0x07, 0xFF, 0xF0, 0x0,
        0x03, 0xFF, 0xE0, 0x0,
        0x0, 0x1C, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0,
        0x0, 0x0, 0x0, 0x0
      };

    I don't really know how he does this, or what these lines mean...............

    It's from OpenGL Game Programming.
    There are some real morons in this world please do not become one of them, do not become a victim of moronitis. PROGRAMMING IS THE FUTURE...THE FUTURE IS NOW!!!!!!!!!

    "...The only real game I thank in the world is baseball..." --Babe Ruth

    "Life is beautiful"-Don Corleone right before he died.

    "The expert on anything was once a beginner" -Baseball poster I own.


    Left cprog on 1-3-2005. Don't know when I am coming back. Thanks to those who helped me over the years.

  3. #3
    I lurk
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    Show some code...
    eg. where this array is passed to the glLineStipple function.

  4. #4
    left crog... back when? incognito's Avatar
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    Thanks I already know the answer.............I wasn't this code in any place in particular, just trying to learn.
    There are some real morons in this world please do not become one of them, do not become a victim of moronitis. PROGRAMMING IS THE FUTURE...THE FUTURE IS NOW!!!!!!!!!

    "...The only real game I thank in the world is baseball..." --Babe Ruth

    "Life is beautiful"-Don Corleone right before he died.

    "The expert on anything was once a beginner" -Baseball poster I own.


    Left cprog on 1-3-2005. Don't know when I am coming back. Thanks to those who helped me over the years.

  5. #5
    Has a Masters in B.S.
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    so you dont need an explaination?
    ADVISORY: This users posts are rated CP-MA, for Mature Audiences only.

  6. #6
    left crog... back when? incognito's Avatar
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    Well thanks no one but, I posted a thread at the C++ board and keep searching, and I've sort of came up with an answer to my question. Thanks anyhow.
    There are some real morons in this world please do not become one of them, do not become a victim of moronitis. PROGRAMMING IS THE FUTURE...THE FUTURE IS NOW!!!!!!!!!

    "...The only real game I thank in the world is baseball..." --Babe Ruth

    "Life is beautiful"-Don Corleone right before he died.

    "The expert on anything was once a beginner" -Baseball poster I own.


    Left cprog on 1-3-2005. Don't know when I am coming back. Thanks to those who helped me over the years.

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