OpenTK is a C# library that wraps OpenGL, OpenCL and OpenAL.

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Understanding implementation of glu.PickMatrix()

I am working on an OpenGL project which requires object selection feature. I use OpenTK framework to do this; however OpenTK doesn't support glu.PickMatrix() method to define the picking region. I ...
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OpenGL UseProgram() fails

I have a rather strange exception on my application using OpenTK on Linux (ArchLinux with Mono 3.2.8) with GL.UseProgram(). I wrote a class to combine multiple files to one program: public sealed ...
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Using Shader causes triangle to disappear

The following is my rendering code. Private Sub GameRender() GL.Clear(ClearBufferMask.ColorBufferBit + ClearBufferMask.DepthBufferBit) GL.ClearColor(Color.SkyBlue) ...
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Use opentk window handle to host wpf control - Monogame

well my boss asked me to try and get wpf controls rendered in Monogame. From what I understand this was easly doable in Xna, however in monogame it fails. Is there any way to make the window hadle ...
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OpenTK (OpenGL) Rotation around fixed axes?

How would I go about rotating things in 3-dimensional space along fixed axes? As OpenTK only seems to have rotation that modifies the other rotation, as in X affects Y & Z Y affects Z Z affects ...
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Play streaming sound in OpenTK?

What's the simplest way to make a sound stream from disk and play in OpenTK?