[Bf-taskforce25] Questions from incoming non-core developers...

[Ken Hughes]

Ok, I can take a shot at wrapping the texture, from the wiki page looks 
like no one has claimed that yet.

Looking at DNA_texture_types.h, there are multiple structures in there 
beside just texture; MTex, PluginTex, CBData, EnvMap and TexMapping.  I 
assume all those get wrapped?

Ken

Campbell Barton wrote:
> On Tue, Dec 30, 2008 at 6:09 AM, Roland Hess <me at harkyman.com> wrote:
>   
>> Since Matt suggested that this stay on-list as a help to others coming
>> after, I've decided to write up a couple of questions and requests that
>> I think will enable incoming developers get up to speed and help
>> continue to speed this project along.
>>
>> On the existing docs:
>> I've read all of the existing documentation for both the design and
>> ongoing progress on 2.5, and while they are full of information, they
>> don't seem to provide some of the key items that would be needed in
>> order for someone to get on board who was neither (1) a hardcore CS
>> student, nor (2) one of the developers who has been involved with this
>> process for a while. (And if you were able to pick this up without being
>> in either of those categories, you're probably better at this than you
>> think ;) )
>>
>> What I (and maybe others) would need in order to start coding:
>> (1) A nice, self-contained example of wrapping a DNA struct into RNA.
>> I've browsed through and read several of the RNA files, especially the
>> one's whose DNA I've coded with before and understand. In addition to
>> the RNA def in those files, though, there seem to be already some
>> get/setters and iterators, so it leaves me not sure how to proceed. Are
>> those additional bits part of the wrapping, or extras put on after the
>> wrapping is done to begin to achieve functionality?
>>
>> So, when some says that "wrapping DNA to RNA is a good place to start,"
>> can we have a discreet sample? What would be perfect is a side-by-side
>> of the struct DNA from something like a Lamp along with just its RNA
>> wrapper. What's needed to get the job done? Are there weird factors we
>> need to be aware of (eg. Textures are used in this certain way, so we
>> have to wrap them differently), or is this just mostly a mechanical
>> procedure we're performing?
>>
>> (2) A nice, annotated example of tool conversion, if you want help with
>> that. Pick one that's been done, show the original code, the new code,
>> and give a brief explanation of why it was rewritten in that way. As a
>> coder working on tool rewrite, what decisions do we face?
>>
>> As you can gather, this request is really for some procedural structure
>> to the job. The great docs and code that are already there are the data
>> -- I (and maybe others) just need a good, annotated example as an actuator.
>>
>> Thanks!
>> Roland
>> harkyman
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>>     
>
> Hey there
> I found looking at Willian's commit that added Camera/RNA enough to get started.
> similar with tools, just look at some existing tools, or commits that
> add a tool.
>
> Don't want to advocate bad/no docs here, but If someone isn't already
> familiar with blenders DNA, I doubt this is a good place for incoming
> developers to start.
>
> A howto for adding an RNA struct+props would be good- a checklist of
> things to change.
> Not sure about operators they are still changing - if details were
> documented they would need updating soon.
>
> @Roland, the RNA property and struct definition 'is' the wrapping.
> looking through existing RNA files is confusing. Id recommend you go
> through the changes in a recent RNA commit to see whats involved with
> adding an RNA struct.
> http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=17627
> http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=18080
>
>