Jiggle modifier not cached

rsodre

Hi!

When I need the polygons of some object, I usually use the JOIN command to build a fresh cache, apply all the modifiers and include all the children. Works really good.

But I have a setup now, of a Plane with a Bend and a Jiggle to give some physics to the animation.
When I apply the Join command to this plane, I get the Bend deformation but never the Jiggle.
Is there anything different with the Jiggle to force it's deformation into the cache?
I see there's an Enable Cache in it, but from the docs I think it's not what I'm looking for, and of course I tried it and made no difference for me.

This is how I join the object...

	bool MakePolygon( BaseDocument* doc, BaseObject* src, PolygonObject* dst )
	{
		auto clonedSource = static_cast<BaseObject*>( src->GetClone( COPYFLAGS_0, nullptr ) );
		CHECK_RETURN_FALSE( clonedSource != nullptr );
		
		// ignore object transform
		clonedSource->SetMg( Matrix() );
		
		// The JOIN command will make editable, appy all modifiers, and join into a single polygon
		ModelingCommandData joinCommand;
		joinCommand.op = clonedSource;
		joinCommand.doc = doc;			// cannot be null, wil not create object
		joinCommand.mode = MODELINGCOMMANDMODE_ALL;
		joinCommand.flags = MODELINGCOMMANDFLAGS_0;
		auto success = SendModelingCommand( MCOMMAND_CURRENTSTATETOOBJECT, joinCommand );
		if( !success || joinCommand.result == nullptr )
		{
			BaseObject::Free( clonedSource );
			return false;
		}
		
		auto result = false;
		PolygonObject* joinedPolygon = static_cast<PolygonObject*>( joinCommand.result->GetIndex(0) );
		if( joinedPolygon->IsInstanceOf( Opolygon ) )
		{
			joinedPolygon->CopyTo( dst, COPYFLAGS_0, nullptr );
			result = true;
		}
		
		BaseObject::Free( clonedSource );
		PolygonObject::Free( joinedPolygon );
		
		return result;
	}

rsodre

@rsodre Passing the deform cache to the command bakewd the Jiggle deformation to my polygon.

if( src->GetDeformCache() != nullptr )
{
	src = src->GetDeformCache();
}

Does this sounds ok?

Using MCOMMAND_CURRENTSTATETOOBJECT instead of MCOMMAND_JOIN seems to have the same effect. What's the difference of using each one?

m_magalhaes

Hello,

Regarding the question yes, using GetDeformCache is the way to go.

Using one object, there's not too much difference between MCOMMAND_CURRENTSTATETOOBJECT and MCOMMAND_JOIN as the MCOMMAND_JOIN is calling a MCOMMAND_CURRENTSTATETOOBJECT for each object.

The obvious part is that the Join command will create one object while the other will return a hierarchy. (if there are children)

Cheers,
Manuel