- shadow volume vertex are now shared, using DrawElements instead of repeated
calls to glVertex, this can improve performance on some systems.
- added a rendering path that use the alpha channel instead of the stencill
buffer.
- releasing memory when tiles objects are destroyed
- objects sub parts will not cast shadows if their name begins with "noshadow"
or if they are in a <noshadow> animation
- bbcache.cxx :
don't ask for a 32 bits context when the primary context is only 16 bits
- RenderTexture.cpp :
corrected a crash when asking for a second rendering context
on win32 and extensions not being supported
- model.cxx, animation.cxx :
added a <noshadow> animation, added an animation type needed by the shadow
code.
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