Looks interesting:
http://www.logicnest.com/archives/132
In PV3D there is a function to lookAt() an object.
As the objects rotate with the globe you can tell them to look at the
centre of the globe.
I couldn't find the right maths on the five3D site.
John
dopeco...@hotmail.com wrote:
As this is a FP9 project, I suspect it may require Five3D, however if
there is a reasonable solution with z-depth it might be something that
could be considered, just not to sure on where to start for the maths
on this aspect of it.
Glen Pike wrote:
I think you mean "billboards" - something that always faces the camera?
Does it have to be in Five3D - can you accomplish this in Flash by
manipulating the z-depth
On 28/04/2010 11:35, dopeco...@hotmail.com wrote:
Hi John,
Each plane is attached to the globe, so if I rotate the globe alone,
the children move with it hence I see the back of the planes etc.
... what I want is to be able to keep the front of the planes facing
the user at their correct perspectives, very similiar to this
(although not related in nature at all):
http://www.logicnest.com/archives/132
Cheers
Adam
John McCormack wrote:
Why would the planes rotate if they are not children of the globe?
John
dopeco...@hotmail.com wrote:
Hi all,
I am at the tail end of a project done in Five3D after doing a
few different ones in Papervision and I am stuck on a fundamental
feature that I hope someone who payed attention in math class
(which I didn't) could help me out on. I am doing something that
has movement similar to WP-Cumulus, i.e. items placed around a
virtual globe, with each item always facing front when that globe
is rotated. I know papervision had something pre-built for this
type of thing, but Five3D doesn't, so I suspect I may have to get
tricky with some maths to keep all panes facing front.
Anyone know where to start on this?, currently, if I spin the
globe on it's Y axis, and turn each item on that globe but the
inverse of its rotation, and works fine around that axis alone.
Throw in both x and y rotation at the same time though and things
go a little skewy.
Any help would be most appreciated and will earn me a couple
of hours extra sleep :)
Cheers
Adam
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