OpenGL and C# Tutorial | The OpenTK Library | Part -5 | Transformations

[@stijn1113]

Thanks for the great tutorials! I have not yet been able to find such kind of OpenGL tutorials for C#. Implementing it in a space model. Would there be a good option for recording the transformations made by the program?

[@ramadash2472]

how to decide the scale ? For example, in ortho projection if we specify left=-20, right=20. Then the total width of viewport corresponds to 40 units. How to decide this in perspective projection ?

[@ThePentamollisProject]

Its best not to thing about perspective projection in that sense.I have explained perspective projection using a viewing frustum (rectangular pyramid). Everything that lies inside it will be visible. With depth(z), the scale will also increase (things will become smaller).

[@ace_of_john_warrior8590]

Push Pop, how retro is that :-)

[@Goldfinch_1654]

can i have github link?

[@kairunhanjun]

That Matrix4 is Error When I Minimized And I Try To Fix With This Code Matrix4 matrix = Matrix4.Perspective(45.0f, (window.Width+1)/(window.Height+1), 1.0f, 100.0f); And Success

[@sannazdev8591]

how you fix it?

[@kairunhanjun]

@@sannazdev8591 By add +1 in this code (windows.Width+1)/(windows.Height+1). The windows can't handle 0 width and 0 height.