This new 16.5 Global Route Environment (GRE) functionality was designed to allow the router to obey plane shapes that are found on signal layers. This is especially useful when a user is trying to work a breakout/route solution and maintain the power integrity of today's high power chips.
This functionality has some ramifications -
1. It is global in nature. In other words, it cannot be controlled at the bundle level.
2. Changing its state causes a reload of GRE so there is 'penalty' to using this.
3. The Router will not push into Dynamic Plane Shapes. It treats them all as Static Shapes.
Setup > Design Parameters > Flow Planning > Routing Controls
Under Routing Controls you can choose Etch Shapes as 'Route thru' or' Route around'
Route thru : Router will route through the shapes
Route around : Router will route around the shapes
Route thru shape
Route around shape
Check out this video !
Please share your experiences with this new 16.5 capability.
Jerry "GenPart" Grzenia