[Bf-committers] Approving the Basic Render API

[Shaul Kedem]

Hi,
 sorry for the phrasing, by hooks I mean your callbacks, by queries I
am asking about this
http://wiki.blender.org/index.php/Render_API#Queries

shaul

On 7/1/07, Aaron Moore <two.a.ron at gmail.com> wrote:
> Hi Shaul,
>
> >  Can you please explain what the main API will be used for as opposed
> > to the plug-in API?
>
> The plugin api is used by plugin writers to register and manage their
> plugins. This includes things like:
>   - declaring what features the plugin supports
>   - declaring the author
>   - eventually, creating GUI elements
>
> By contrast, the render api specifies which callbacks are needed for
> rendering, what they have to do, and provides the input and output
> mechanisms for doing it. This includes:
>   - getting scene data
>   - getting rasterization information
>   - sending back image data
>
> The render api can be used by more than just renderer plugins. It can
> be used for hooking up the internal renderer... potentially for
> gaming...
>
> The plugin api is used by all plugin systems in blender: textures,
> sequence, eventually more ;)
>
> Also, for clarity, I am not building the plugin API, what I am doing is:
>  1. building a plugin system for renderers which uses the plugin API
>  2. building the render API
>  3. reimplementing the blender internal convert code with the plugin API
>
> >  Also, I've seen you are using both registered "hooks" and "query"
> > function in the main API, isn't there a way to give all of the control
> > to the caller and have only queries in the main API side? I always
> > think of such "event driven" mechanisms as risky and since this is C
> > and not C++ the whole constructor/destructor thing is not available,
> > and simulating it never goes well.
>
> I'm afraid I don't completely understand you here. I agree that
> simulating constructors and destructors is a bad idea (I come from a
> c++ background, so I should probably make sure I'm not doing this...).
> I'm not sure what you're talking about with "hooks" and "query" could
> you point out specifically where in the document you're getting this?
>
> Aaron
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