Example Unity Project illustrating how to use stencils to create volumes that share the same space via portal tehcnique.
To learn more watch the demo video here - https://www.youtube.com/watch?v=5DKIP9N-OB4
Read the original forum thread here - https://forum.unity3d.com/threads/unity-4-2-stencils-for-portal-rendering.191890/
Originally built in Unity 4.2, the project has recently been updated to Unity 5.4.2f2, with improvements such as
Stencil Shader simplification.
Stencil Shaders no longer using hard-coded values.
MateialPropertyDrawers for easier material property editing in the inspector.
Support for Stencils writing into the DepthNormalsTexture.
Updated relevant packages - e.g. Image Effects.
Improved examples with new UI to toggle features on/off.
The GitHub Repository now contains
Master - Unity 5.4.2f2
Branch - Unity 5.2.2f1