Re: [openvrml-develop] 'vector subscription out of range' assertion

[Braden M. <br...@en...>]

On Thu, 2008-07-24 at 18:53 +0200, Zoltán Török wrote:
> Hi,
> 
> The attached wrl file (made with 3DS max 2009) causes a 'vector subscription
> out of range'  assertion
> in viewer.cpp@line:3082

I've attached a patch that should address this (and other) problems.

While the crash you noted was squarely the fault of OpenVRML, fixing it
led to a crash due to some invalid data in room.wrl. The node
WALL02-FACES uses 24 as a coordIndex; but there are only 24 coordinates.
(Coordinates are indexed starting at 0; so 24 is out of range.)

Nonetheless, crashing is not an appropriate response to invalid input;
so this, too, has been fixed. This patch makes OpenVRML skip invalid
coordinate indices (along with any subsequent indices in the same
polygon).

This patch was created against the trunk; but I suspect it will apply
cleanly to 0.17.6.

-- 
Braden McDaniel                           e-mail: <br...@en...>
<http://endoframe.com>                    Jabber: <br...@ja...>