Yep John that's pretty much the effect we are after, lookAt() is the
method I was trying to think of in PV3D, thanks for the reminder, but
like you, finding an five3D equivelant considering it doesn't have
cameras as does PV is proving impossible for a typical API end user like
myself, I will have a poke around the lookAt function of PV though to
see if it gives me any hints.
John McCormack wrote:
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
[email protected] 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, [email protected] 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
[email protected] 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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