Comments on: OpenGL programming in Haskell, a tutorial (Part 2)

By: Peter Althainz

Peter Althainz — Wed, 30 Dec 2009 22:06:16 +0000

Thanks for this interesting tutorial, I did’nt realize, that an OpenGL interface is available in Haskell. I recently tried to interface Haskell with Irrlicht, a popular 3D engine.

http://www.althainz.de/haskell-irrlicht-interface.html

This seems to me an approach for games or multimedia animations. But C++ Haskell interfacing is still a lot of manual work.

By: Rodrigo S. Wanderley

Rodrigo S. Wanderley — Fri, 29 Aug 2008 14:16:11 +0000

Thanks a lot for the tutorial.

Was getting crazy trying to understand HOpenGL at my own.

By: Ijon Tichy

Ijon Tichy — Wed, 04 Apr 2007 15:51:29 +0000

I am currently stuck on trying to convert a Vertex3 to a Vector3 (I am trying to use gluUnproject, which takes a Vertex3). Anyone know how to do that?

Just a naive guess, I’m still a Haskell beginner:

vertex3ToVector3 :: Vertex3 a -> Vector3 a
vertex3ToVector3 (Vertex3 x y z) = Vector3 x y z

Of course you probably already solved this months ago! But I added it just in case someone was curious (or wanted to correct my flagrant error).

By: Jamin Ohmoto-Frederick

Jamin Ohmoto-Frederick — Wed, 03 Jan 2007 20:58:15 +0000

Thanks for the tutorial! I am pretty new to Haskell. I ran into the same matrixExcursion problem with the Panitz tutorial, so I dug around and finally found examples at:

http://cvs.haskell.org/cgi-bin/cvsweb.cgi/~checkout~/fptools/libraries/GLUT/examples/RedBook/

that work with my current GHC 6.4.1.

Also,

1) You only need “import Graphics.UI.GLUT” since it automatically does “import Graphics.Rendering.OpenGL”.

2) I could get away compiling without the GLUT package option in the command line.

Right now I am playing around with HOpenGL to draw some 3D graphs.

I am currently stuck on trying to convert a Vertex3 to a Vector3 (I am trying to use gluUnproject, which takes a Vertex3). Anyone know how to do that?