Well first you need to add an object which holds your primitives (i.e.
a polygon) to your output GeometryList. You can do this like this:
out.addObject(yourObjectID);
Now that you have an object created, you can add your primitives to
it, in your case a polygon.
out.add_primitive(obj, new Polygon(0, 1, 2, 3));
So this allocates a polygon class and assigns points 0-3 to be its
vertices. But this doesn't mean that the polygon's shape has been
defined yet, because the points 0-3 have not a set position yet. To do
this you create a pointer to the pointlist that contains the points of
your object, then you need to resize the pointlist to fit all of your
primitives points. Then you iterate through the points of the polygon
of your interest and set the coordinates of each point.
PointList* points = out.writable_points(yourObjectID);
points->resize(num_points);
for(unsigned int p=0; p<4; p++){
(*points)[p].set(x_pos, y_pos, z_pos);
}
Hope this helps!
Nhat
----------------------------------------------------------
nhat phong tran
dipl. digital artist (FH)
computer graphics & visual effects
m_us: +1 (310) 866-6871
m_de: +49 (176) 24 26 34 27
fax: +49 (321) 213 25 866
santa monica, ca 90401
sent via iPhone
----------------------------------------------------------
On 19 April 2011 09:07, Stephen Newbold <stephe...@moving-picture.com> wrote:
> Hi. Anybody know of any easy to understand documentation on how to create
> polygons using the NDK? I had a look through the Sphere.cpp example that
> ships with Nuke and like most things it went completely over my head. I'm
> hoping to be able to create something simple, just a four sided poly defined
> by 4 corner points, but have zero idea on how to go about it.
>
> Cheers,
> Steve
>
> --
> Stephen Newbold
> Senior Compositor - Film
> MPC
> 127 Wardour Street
> Soho, London, W1F 0NL
> Main - + 44 (0) 20 7434 3100
> www.moving-picture.com
>
> _______________________________________________
> Nuke-dev mailing list
> Nuke-dev@support.thefoundry.co.uk
> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-dev
>
_______________________________________________
Nuke-dev mailing list
Nuke-dev@support.thefoundry.co.uk
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-dev
