OpenGL Koch Curve: Fixed and Rendering Well

[Boleeman]

Tried to convert an OpenGL  Koch Curve fractal code from Delphi

Got an external access violation error.


I was rendering to the form canvas and not to the OpenGL control.

[Boleeman]

I replaced dglOpenGL with GL in uses and got rid of dglOpenGL.pas in Project inspector and now I don't have the access violation error. It compiles OK

I get a Yellow Koch Curve, but it is flashing.

[Lulu]

Hi, at the end of the FormPaint method, if you replace Refresh by Invalidate there is no flashing.
Tested on windows 10.
There is another problem: the app don't stop if I click on the red cross at top-right of the windows.

[Boleeman]

Thanks Lulu for the reply.

I worked out that I was not rendering to the OpenGL control, but to the Form1 canvas.

Now it is all fixed and working well.

[Lulu]

I worked out that I was not rendering to the OpenGL control, but to the Form1 canvas.

I didn't realise it either