Hi Armin,
Armin Le Grand schrieb:
Hi Regina,
the dr3d:scene scene is - as in the model - the binding element between
3D content and 2D objects. It has two objectives:
- be a 2D element which defines where the 3D content is to be rendered
to, it's z-sorting and other 2D attributes, hence the 2D stuff like
svg:width and svg:height, these should be the 2d attributes of the 3D
scene in it's role as 2D object
- be the root of a 3D scene, with a hierarchy of 3D objects, lights and
camera definitions which will all be rendered to a 2D 'bitmap' content
(except the 3D shadow, that is another beast and creates 2D shadow
'behind' the rendered 3D bitmap, but as vector data)
That means, that svg:width and svg:height makes no sense for inner
dr3d:scene elements. ODF 1.2 does not distinguish this. So I will try to
get an additional remark into the spec.
The camera for an inner 3D scene is ignored (only the outmost one makes
sense).
So in a nesting tree only one camera in a branch makes sense. But I do
not think, that it must be the outmost dr3d:scene. Imagine two 3D-scenes
with camera, side by side grouped by a dr3d:scene without camera.
I would guess there was no easy way to make an extra-definitopn
for a 2nd 3D scene which allows both. Toe other sense of inner 3D
scenes is a simple group object mechanism (extensively used in 3D charts).
Are the svg:x and svg:y attributes used in the inner 3D-scenes?
HTH!
It confirms my opinion that the spec needs some clarifications in regard
to 3D-scenes.
Kind regards
Regina
On 21.10.2013 09:44, Regina Henschel wrote:
Hi all,
The element dr3d:scene has the attributes svg:width and svg:height in
the ODF specification. What do they mean?
When I set a special width in AOO, I can see, that the picture of the
3D-scene is stretched to the given width. That is the same behavior in
AOO as with width on an OLE object.
But following the spec a dr3d:scene can have other dr3d:scene elements
as child elements and I have no idea, what makes sense then.
Similar problem is with the attributes, which describe the camera.
What is the sense of an own camera for an inner 3D-scene?
Kind regards
Regina
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