Re: [Glsdk-devel] [GLm] api

[H. H. <hen...@gm...>]

Thanks. That is absolutely true. I would have missed that without your post.
Will be fixed in the next commit.

On Tue, Aug 26, 2008 at 9:24 PM, Andrew Gajda <and...@gm...>wrote:

> Just glancing at GLM src and noticed in glmMatDeterm4f that assert(m)
> should be assert(m_).
>
> pudman
>
>
> On Tue, Aug 26, 2008 at 10:24 AM, Henri Häkkinen <hen...@gm...>wrote:
>
>> Okay.
>>
>> I think I can say that the GLM API is more or less "set". This does not
>> mean that there won't be any additions or modifications to it but the
>> general look of it is fine with me and it has been open for discussion for
>> some time. So if Korval could at some point take it to his tasks to write
>> the API reference outline in DocBook which I could fill in with the actual
>> docs. The 'docs/sdk_reference/glm-apiref' file may also be removed in the
>> process.
>>
>>
>> On Tue, Aug 26, 2008 at 5:16 PM, Henri Häkkinen <hen...@gm...>wrote:
>>
>>> Okay I see what you mean by that. However I think our mathlib is intended
>>> mainly to be used for OpenGL (a matrix based system), so mul and div feels a
>>> bit redundant atm.
>>>
>>>
>>> On Tue, Aug 26, 2008 at 1:20 AM, <gl...@mo...> wrote:
>>>
>>>> > What do you mean 'mathematical operations or software operations'?
>>>>
>>>> In math we can graphically represent vectors as arrows pointing form
>>>> (point A to B. It's hard to imagine how we could visualize Mul operation
>>>> in such form.
>>>>
>>>> In graphics library we often use vectors to represent size or other
>>>> things. Especially when comes to 2D rendering, transforming vectors by
>>>> means of Add/Mul is more common than transforming my multiplying (x, y,
>>>> 1.0) vector by 3x3 matrix for the sake of both simplicity and
>>>> performance.
>>>>
>>>> Even in 3D space. Imagine a volume defined as a box with origin at point
>>>> A
>>>> and a size of S. If point B lays within this box then C = (B - A) / S
>>>> gives texture-space coordinate for point B. An alternative would be to
>>>> define a 4x4 transformation matrix that transforms point B into texture
>>>> space. Such matrix would be defined as conjunction of glmMatTranslate
>>>> and
>>>> glmMatScale.
>>>>
>>>>
>>>> These are the kind of examples showing that even if something is useless
>>>> in math, it's useful in programming.
>>>> Sorry for speaking in riddles the first time ;)
>>>>
>>>> It's bed time for me. Cheers.
>>>>
>>>>
>>>>
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>>>
>>>
>>>
>>> --
>>> Henri 'henux' Häkkinen
>>>
>>>
>>
>>
>> --
>> Henri 'henux' Häkkinen
>>
>>
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-- 
Henri 'henux' Häkkinen