Commits on Nov 15, 2017

1. Don't rebuild the entire scene when scrolling with property bindings. …

   Instead of rebuilding the entire scene / frame when scrolling while
   property bindings are present, resolve the animated properties as
   we prepare primitives and update the clip-scroll tree.
   
   For transforms, reference frames now retain the property binding
   information and build the correct transform in update_node(). We
   could possibly optimize this in the future to not always rebuild
   the reference frame transform, if there is no property binding active
   on this reference frame, if it ever shows up in a profile.
   
   For filters, rely on the new Picture tree functionality and resolve
   the opacity filter value when preparing the picture primitive for
   rendering. If the property resolves to an invisible filter, then
   early out from this entire picture primitive.
   
   Also update the animation example to demonstrate animating opacity.
   
   Fixes #1921.

   

   gw3583 committed Nov 15, 2017

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