Re: [Caml-list] Pros and cons of different GL bindings ?

[Anthony Tavener <anthony.tavener@gmail.com>]

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Ethan's summary is good. I'll elaborate a bit on glcaml...

I use glcaml, but don't recommend it in general. There are two reasons I
chose it: 1. It looks like OpenGL, so my familiarity with it directly
translates... the only differences are lowecase GL constants and no
parentheses around arguments. 2. It (kind-of) supports features like
shaders.

What I mean by "kind-of" is that the bindings are broken for a lot of
lesser-used features. I've been maintaining my own modifications to support
features I need (same with sdlcaml)... though I recently decided I should
follow OpenGL 4 (basically the same as OpenGL ES 2), which strips the
interface down to a minimal set heavily reliant on shaders. This is turning
into "yet another set of bindings".

I know I tried glMLite... but can't remember what problems I encountered,
and I did encounter problems which led me to settle on glcaml.

Also, there is one other binding I know, by Jeffrey Scofield, for OpenGL ES
1, and he uses this for iPhone development:
http://psellos.com/ocaml/lablgles-build.html


Summary:

If you don't need shaders: LablGL

If you want to do OpenGL ES 1.x (mobile device, for example): LablGLES

If you need shaders: glcaml or glMLite


Oh, if anyone knows of someone making OpenGL 4 / OpenGL ES 2 bindings...
please speak up! :)

 -Tony


On Wed, Apr 27, 2011 at 7:17 AM, Ethan Burns <burns.ethan@gmail.com> wrote:

> On Wednesday, April 27, 2011 6:30:25 AM UTC-4, Thomas Braibant wrote:
>
> I have only really tried glMLite (and even then I only used it to draw
> simple rectangles using vertex buffers) but I did also look into the others
> a tiny bit.  Here is what I found:
>
> > - LablGL http://www.math.nagoya-u.ac.jp/~garrigue/soft/olabl/lablgl.html
>
> This appears to be the 'default' OpenGL for OCaml.  It is suppose to work
> with lablgtk (I don't know if the others do) but it does not seem to have
> support for shaders and some later OpenGL funtionality.
>
> > - glMLite http://www.linux-nantes.org/~fmonnier/ocaml/GL/
>
> Supports the newer OpenGL functionality (GLSL shaders and vertex buffers).
>  My friend had a difficult time getting it to compile/work on OSX but with
> some minor changes I believe that he eventually got it working.
>
> > - glcaml http://glcaml.sourceforge.net/
>
> glcaml seems to be a set of automatically generated stubs.  It seems to
> support some of the latest OpenGL but the interface is automatically
> generated so it doesn't have a very OCaml-ish feel to it.
>
> Best,
> Ethan
>
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