[Bf-committers] Camera Guides

[Daniel Salazar - 3Developer.com]

eh so what is the solution? i'd pretty much like to have this (other
than my patched build)

Daniel Salazar
3Developer.com



On Thu, May 5, 2011 at 3:40 PM, Michael Fox <mfoxdogg at gmail.com> wrote:
> ok i will stop now, thank you all
>
> On 06/05/11 07:33, Campbell Barton wrote:
>> On Thu, 2011-05-05 at 20:03 +1000, Michael Fox wrote:
>>> In the past few days i have been working on adding guides to the camera
>>> object, to be used for perspective and eye line tracking  as well as
>>> composition guides (rule of thirds, etc etc) ,  now granted there is
>>> patches available to do this but they are all hardcoded and don't allow
>>> for much in the way of adjustment or precision, and certainly not
>>> elegant or integrated well.
>>>
>>> However there has been concerns over this feature is really necessary,
>>> like people should use BG images or Grease pencil, really slapdash stuff
>>> and that custom guides are not needed nor should be developed, so I
>>> would like to ask, do I continue on this project, or call it a day and
>>> let the patch pass around the community because I do not want to keep
>>> going if it is deemed of little or no interest or need.
>>>
>>> the Patch
>>> http://mfoxdogg.com/development/cam_guides.txt
>>>
>>> Pros.
>>>       -uses SDNA/RNA
>>>       -fully accessible via python
>>>       -update real-time
>>>       -both ends of each guide are independent and can be put anywhere in
>>> the area of the camera
>>>       -has a transparency value
>>>       -position values are percentages of the camera area so no need to
>>> redraw guides if resolution or camera scale change
>>>       - due to accessibility of python, a preset system could be
>>> developed for this
>>>       - guides are saved in the file
>>> Cons
>>>       -only exist in camera view
>>>       -only a dashed line and no colour support at this time
>>>
>>> The patch has a few issues
>>>       - need a way to clear memory made where the guide is made
>>>       -due to this files saved with guides will crash
>>>       -the remove guide button does not work, for some reason
>>>       -only very basic UI has been developed
>>>       -no documentation at this time
>>>
>>> Now please don't view this as me sulking and being a primadonna its just
>>> i have very little time these days and havn't developed anything for a
>>> while, there is not design docs for the object colour rules system yet
>>> so i took on this challenge, which has been in the back of my mind for a
>>> long time.
>>>
>>> Thank you for your time
>>>       Michael B. Fox
>>> _______________________________________________
>>> Bf-committers mailing list
>>> Bf-committers at blender.org
>>> http://lists.blender.org/mailman/listinfo/bf-committers
>> It seems to me that this is spending energy on a feature which is mainly
>> useful in corner cases, while grease pencil isn't perfect, I think with
>> some minor tweaks it can work very well.
>>
>> Suggest to do this instead:
>> * Add generic overlay presets like golden rule, center, diagonal lines?
>> There could be 3-6 of these that can work like existing tile safe.
>>
>> * Rather then adding new code, use grease pencil for this feature, the
>> only change needed is show a cameras grease pencil while in the camera
>> view - irrespective of selection.
>>
>> * Modify the SVG importer to optionally load paths into grease pencil or
>> import SVG and convert curves to grease pencil internally.
>>
>> --- (end implementation details)
>>
>> For users this can be made as simple as a button in camera panel:
>> "Load SVG to Camera Grease Pencil".
>>
>> This avoids adding DNA, rna api, editing tools etc.
>> If people really like to make some detailed camera overlay that cant be
>> drawn by hand in grease pencil they can use inkscape and import it.
>>
>>
>>
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