Hi Roger,
The only
way round it is to write your own shadow technique which derives from
lispsm and overrides the shaders with ones that do what you want.
This comes back to what we were discussing a few days ago, and I think
you misunderstood what I was explaining. You don't actually need to
derive a new shadow technique if all you want is to change the
shaders... You could just write new shaders and use
osgShadow::StandardShadowMap's API to set them on the existing shadow
technique (be it LiSPSM or others in Wojtek's contribution):
void setShadowVertexShader( osg::Shader * shader )
{ _shadowVertexShader = shader; }
void setShadowFragmentShader( osg::Shader * shader )
{ _shadowFragmentShader = shader; }
void setMainVertexShader( osg::Shader * shader )
{ _mainVertexShader = shader; }
void setMainFragmentShader( osg::Shader * shader )
{ _mainFragmentShader = shader; }
This is what we do here. We made our own shaders which support the
features we want (all light source types, multiple lights (but only one
casts shadows), multitexturing, fog, etc.) and use these methods to give
the new shaders to the shadow technique to use instead of the ones it
has in its code.
Much simpler than deriving the class, and more data-driven too - you can
have the shaders in files on disk and change them without recompiling.
Unless I misunderstand what you (or the OP in this thread) want to do...
Hope this helps,
J-S
--
______________________________________________________
Jean-Sebastien Guay [email protected]
http://www.cm-labs.com/
http://whitestar02.webhop.org/
_______________________________________________
osg-users mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
