New in Shader Forge 1.27:
• PBR lighting is now using GGX and should match Unity's PBR much better
• Fixed several script serialization errors when running in Unity 5.4
• Fixed a bug where double-sided shaders with deferred enabled didn't compile
• Fixed a bug where changing blend preset would sometimes make the viewport stop rendering properly
• Fixed a bug where the code node wrote matrix4x4 instead of float4x4 into the shader