[Bf-cycles] RenderSettings.use_border

[Dalai Felinto]

Hi Jordan,
this is such a non-cycles question that I think you will have a better luck
going to the blender forums
(e.g. www.blenderartists.org/forum) for more in python, the api, ...

Anyways, this is what I use to get a render that takes only half the width:

setRenderBorder(bpy.context.scene, 0, 0.5, 0, 1.0)

def setRenderBorder(scene, min_x, max_x, min_y, max_y):
 """"""
render = scene.render

 render.use_border = True
render.use_crop_to_border = True

# set border
 render.border_min_x = min_x
render.border_max_x = max_x
render.border_min_y = min_y
 render.border_max_y = max_y

--
Dalai

www.dalaifelinto.com

2012/6/25 Jordan Miller <jrdnmlr at gmail.com>

> Ok I guess that makes sense. But looking at a page like this:
>
> http://www.blender.org/documentation/blender_python_api_2_63_12/bpy.types.RenderSettings.html
>
> How could you find how those variables can be called (by the various
> variables you specified)?
>
> Is there a way to figure out the complete list?
>
> It is very confusing for a n00b.
>
> thank you,
> jordan
>
>
>
>
>
> On Jun 25, 2012, at 5:17 PM, Brecht Van Lommel wrote:
>
> > It could be more helpful but this is also just the way python works.
> > This page describes the data type, which is distinct from a particular
> > instance of that data type. There are multiple ways to access a scene
> > and its render settings: bpy.data.scenes[0] works but also
> > bpy.context.scene, screen.scene, scene.background_set, ...
> >
> > Brecht.
> >
> > On Mon, Jun 25, 2012 at 7:27 PM, Jordan Miller <jrdnmlr at gmail.com>
> wrote:
> >> ok thank you, this is great news. The doc said this is a feature that
> will NOT be implemented soon so I was trying to find my own way thorugh it.
> >>
> >> But how is one supposed to know that:
> >>
> >> bpy.types.RenderSettings.border_max_x cannot be called directly?
> instead it is set at:
> >>
> >> bpy.data.scenes[0].render.border_max_x
> >>
> >> and so on...?
> >>
> >> For example:
> >> The mouse-over tooltip for the Border checkbox incorrectly lists:
> RenderSetting.use_border when instead it should specify, I think,
> bpy.data.scenes[0].render.use_border.
> >>
> >> It took me a could hours digging around the internet along with a LOT
> of trial and error to figure this out (i had to control-space autocomplete
> each bpy.data variable to find the one I was looking for).
> >>
> >> This little bit from the docs is really unhelpful... it says the
> problem is obvious but doesn't explain all mappings from class to active
> variable:
> >>
> http://www.blender.org/documentation/blender_python_api_2_63_12/info_quickstart.html#data-creation-removal
> >>
> >> Soooo confusing!
> >>
> >> jordan
> >>
> >>
> >>
> >>
> >>
> >> On Jun 25, 2012, at 6:43 AM, Brecht Van Lommel wrote:
> >>
> >>> Hi,
> >>>
> >>> Here are the properties:
> >>>
> http://www.blender.org/documentation/blender_python_api_2_63_12/bpy.types.RenderSettings.html#bpy.types.RenderSettings.border_max_x
> >>>
> >>> This will become a builtin Cycles feature soon though, to render tiled
> >>> with less memory.
> >>>
> >>> Brecht.
> >>>
> >>> On Sun, Jun 24, 2012 at 4:36 PM, Jordan Miller <jrdnmlr at gmail.com>
> wrote:
> >>>> Hi,
> >>>>
> >>>> This works in Cycles!
> >>>>
> >>>> I am trying to scale-up my renders for printing poster-size.
> Obviously I run out of memory quickly with my video card. However, if we
> could break up the scene into chunks and render those then it would be a
> lot faster to use GPU since it could fit on the GPU memory.
> >>>>
> >>>> My experiments here are true, the use border setting followed by
> shift-B to define the rendered area. A scene that barely does not fit on my
> video card DOES fit if I create 4 versions of the .blend file with a
> shift-B defined quadrant in each one for rendering.
> >>>>
> >>>> How do I script the border size option? I found:
> >>>> RenderSettings.use_border
> >>>>
> >>>> But that is a boolean and does not have values for x,y.
> >>>>
> >>>> So if we can find the python definition for these then I could add a
> preference for rendering "Tiles" with cycles that the user could assemble
> afterwards.
> >>>>
> >>>> This could allow crowd-sourcing of Mango rendering, for example,
> where even weak GPU cards could render pixels for the final movie.
> >>>>
> >>>> please help me find how to programmatically set the shift-B border
> size and position so that we can add this feature to Blender!
> >>>>
> >>>> thanks,
> >>>> jordan
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> Bf-cycles mailing list
> >>>> Bf-cycles at blender.org
> >>>> http://lists.blender.org/mailman/listinfo/bf-cycles
> >>> _______________________________________________
> >>> Bf-cycles mailing list
> >>> Bf-cycles at blender.org
> >>> http://lists.blender.org/mailman/listinfo/bf-cycles
> >>
> >> _______________________________________________
> >> Bf-cycles mailing list
> >> Bf-cycles at blender.org
> >> http://lists.blender.org/mailman/listinfo/bf-cycles
> > _______________________________________________
> > Bf-cycles mailing list
> > Bf-cycles at blender.org
> > http://lists.blender.org/mailman/listinfo/bf-cycles
>
> _______________________________________________
> Bf-cycles mailing list
> Bf-cycles at blender.org
> http://lists.blender.org/mailman/listinfo/bf-cycles
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.blender.org/pipermail/bf-cycles/attachments/20120625/dddbd829/attachment.htm