Gotchya... Might do some mini tests to see their effects. Good info, thanks :)
Darcey On 4 December 2010 14:24, richardolsson <[email protected]> wrote: > Hi, > > The lenses are in charge of the math behind the projection of points > in 3D space onto the projection plane (and hence how those points are > rendered in screen space.) > > Like Rene said, the Orthogonal lens does orthogonal/isometric > projection meaning that there is no vanishing point. Lines that are > geometrically parallel (like the opposite sides of a cube) are drawn > parallel as well (instead of skewing towards the vanishing point.) > Read more about this at http://en.wikipedia.org/wiki/Isometric_projection > > The perspective lens and zoom-focus lens provide more "regular" > projections, and are usually what you want to use. > > The spherical lens _does_ actually create a fish-eye effect, but > remember that the lenses only affect projection of vertices. This > means that if you render a cube with 1x1x1 segments using a spherical > lens, all lines will remain straight. If you however increase the > density of the mesh, say to 20x20x20 segments, you will be able to see > the fish-eye effect since there are more points that are projected and > distorted in the cube. > > The AbstractLens class is not a lens per sé, but an abstract base > class extended by the lens implementations (other lens classes) for > shared functionality and polymorphic behavior (e.g. being able to > replace one with another.) > > > Cheers > /R > > On Dec 4, 11:23 am, Darcey Lloyd <[email protected]> wrote: > > Hmmm... Will probably leave these alone then... > > > > Thanks Rene > > > > D > > > > On 4 December 2010 00:15, Rene Tellez <[email protected]> wrote: > > > > > > > > > > > > > > > > > I believe that *OrthogonalLens* transform the scene into Orthogonal > view > > > which means that lines are parallel to each other. One usually use this > for > > > to create a 2d scene since Orthogonal view doesn't portray distance > between > > > objects very well. On the other hand* PrespectiveLens* are more suited > for > > > 3d scenes since it draw lines from a certain point in the scene > (usually the > > > camera) and distance can be better view. I don't know what the other > lens > > > do. >
