Community discussion forum

Back to discussion

[3930] OpenGL and C# - Part 1

Last post was 16 Sep 2008 at 09:46
Tags:
  • 9 years ago

    This thread is for discussions of OpenGL and C# - Part 1.

    Report abuse
  • Advertisement

    Simply the fastest line-level profiler for .NET ever

    “The low overhead means it has minimal impact on the execution of my program”
    Mark Everest, Development Team Leader, Renault F1 Team Ltd.

    Try out the new ANTS Profiler 4 for yourself. Download your 14-day trial now

  • 5 years ago

    I wrote this article almost 9 months ago so it could be a little outdated. Hope you all like it


    Regards,


    John

    Report abuse
  • 4 years ago

    i'm trying to use the control named (OpenGLControl) as in this example
    but every time i'm trying to resize this control the following exception occurs:


    An unhandled exception of type 'CsGL.Util.NativeException' occurred in csgl.dll


    Additional information: A dynamic link library (DLL) initialization routine failed.

    Report abuse
  • 4 years ago

    Did you find a solution to the problem. I am trying to compile the same sample and getting the same message

    Report abuse
  • 4 years ago

    I have completed this tutorial, and created the Windows Form with the OpenGL window, and added the Cube Class, and if compiles with no errors or warnings, but for some reason, I see no cube when I run the application.


    Thanks for your help,  so far a very helpful tutorial!


    Please reply to kev@draven007.com if you can.

    Report abuse
  • 4 years ago

    Make sure you install CsGL correctly. You need to have csgl.native.dll in your path, usually either in c:\windows\system32 or in the executable's directory. This could solve your problems.

    Report abuse
  • 4 years ago

    Add the line

    Code:
    new Cube().glDrawCube();
    To your OurView.glDraw() function.
    Put it instead of the
    Code:
    // TODO: Draw a box or something
    line.

    Report abuse
  • 4 years ago

    Hallo all...
    thanks for the person who made this great web site!


    i have a problem in this program. This program compiles with this error:
    no entry points defind


    and i do not know what that mean !!!!
    please i need your answer quickly
    thanks
    Rana

    Report abuse
  • 3 years ago

    first i like to thank you for your help. put i think ther is some thing is messing in this code.


    1-  when compile a compile error appear Sayes:'Cube' does not contain a definition for 'Position'
    . So I commented this line and try to recompile.
    2- The application ran but there is no cube . This was expected becouse we didn't even make an Object from the Cube class "this is so strange".
    3- a last thing , How the 'view' Object will draw the cube without any code that till the 'view' Object to draw the cube.


    Please reply becouse i want to learn programming OpenGl very much.


    thanx

    Report abuse
  • 3 years ago

    The "entry point" is the Main() function, check that you have included it with its right spelling.

    Report abuse
  • 3 years ago

    Hi everyone
    I got a problem when trying to draw into gl-context from a thread that is spawned from within the main program thread.
    Instead of having one function that does all the drawing stuff, i want separate threads that "draw themselves".
    I read about the possibility to copy the opengl-context handle to pass it to another thread...but as it seems,
    the glCopyContext function was not ported to csgl (or i am to stupid, may be).


    Has anyone hints for me?

    Report abuse
  • 3 years ago

    I have the same problem, but I do actually have that line in place in the constructor of OurView.


    I tried this:


    Code:

       Cube cb = new Cube();
       cb.CubeColorBlue = 0.7f;
       cb.CubeColorGreen = 0.7f;
       cb.CubeColorRed = 0.5f;
       cb.glDrawCube();
       this.SwapBuffer(); // swap Buffers


    and then about the missing Position property:


    Code:
    /// <summary>
    /// The position of the cube
    /// </summary>
    public float Position
    {
       get { return fPosition; }
       set { fPosition = value; }
    }


    I wrote that... Now, it still doesn't work... Help plz!

    Report abuse
  • 2 years ago

    I am not sure but I think  there is a misstyped variable name "Position", I wonder if its "fPlusPostion".


    Cube.cs Line 76



              this.ViewPort = 0;
               this.fMinusPosition = 0f;
               this.fPlusPosition = 2f;




    I have to say that after this I still see nothing on the screen except a black layout.


    I had another problem with Thread function OpenGL_Start, exxception says that there is a cross-thread problem with this.view.Refresh(), so I disabled the Threading.


    Any ideas?



    Best Regards

    Report abuse
  • 2 years ago

    when i download the zip file for Csgl one of the files is missing, what should I do? I have looked over the web for other places that have the file, no luck.   

    Report abuse
  • 1 year ago

    I get the fallowing exception:  Cross-Thread operation not valid: Control "accessed from a thread other than it was created on.

    in this:

    for (; ; ) // infinity loop for rendering
                {
                   this.view.Refresh();
                }








    Report abuse
  • 2 months ago

     I have tried to run this code on my machine. Every time i run it says an error "'SimpelOpenGL.Form1' does not contain a definition for 'view'  ". Please reply.

    Report abuse

Post a reply

Enter your message below

Sign in or Join us (it's free).

Quick links

Recent activity

Languages

Web Development

Frameworks & Architecture

Other major sections