Re: [Vrmlengine-main] compiling issues

[Michalis K. <mic...@gm...>]

da...@la... wrote:
> 
> no cameras defined, the files are at http://vrml.lang.hm/vrml
> 

Ok, looking at both files there (kadota.3ds and kadota-camera.3ds),
there indeed seems no camera defined. So behavior of view3dscene seems
correct, like said menu "Navigation -> Jump to
viewpoint -> Calculated viewpoint to see the whole scene (+Z up)" gets
you in somewhat good position.

> is there a way to define how high above the surface the camera is?

In VRML/X3D, you can define this (and much more). There's no way to
encode it in 3ds file (if you know where such info can be found in 3ds
format, please tell --- as far as I know, nowhere...). You can convert
your 3ds files to VRML ("File -> Save as VRML"), then open the resulting
kadota.wrl file in any text editor and add there VRML/X3D nodes
specifying camera properties.

Desired height above the ground is the second number of
NavigationInfo.avatarSize field. You can read VRML 97 or X3D
specifications to get a glimpse of all parameters allowed (although I do
not handle some newer X3D parameters), see e.g.:
http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/nodesRef.html#Viewpoint
http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/nodesRef.html#NavigationInfo

For example, check out this file:

http://michalis.ii.uni.wroc.pl/~michalis/tmp/kadota.wrl.gz

It's your kadota.3ds, converted to VRML, and with added by hand
NavigationInfo and PerspectiveCamera at the beginning.
(PerspectiveCamera content generated by menu item "Console -> Print
Current Camera Node (VRML 1.0)".) As you can see, this way we specify
default camera parameters, position, moving speed, even the fact that by
default view3dscene should enter "Walk" mode with collisions and gravity.

Michalis