Custom Lighting

Creation

To implement custom lighting Right Click Create -> Graphlit -> Custom Graph.

• This creates a new Unlit graph with Custom Lighting option enabled which allows you to access light data using the Main Light Node, Lightmap UVs, and generates all the requred passes
• The created Blend Final Color node is used to correctly handle transparency, output required data to the meta pass and provide an easy way to blend everything

Implementation

Included nodes allow for easy creation of custom lighting. Theres only a few things that need to be implemented to fully support Unity lighting:

• Realtime Lights
• Baked Lightmaps
• Lightprobes
• Reflection Probes

The diffuse or specular outputs can be simply added together with an Add node and connected to the Blend Final Color node.

Examples

• You can check out the included Toon Example at Packages/com.z3y.graphlit/Shaders/Toon.graphlit, which implements realtime lights and lightprobes in a way that allows it to look good in all worlds
• For a PBR example check out CustomPBR at Packages/com.z3y.graphlit/Shaders/Samples/CustomPBR.graphlit which implmenets almost everything Unity supports

Normal Maps

Many nodes have the Normal WS Input (World Space Normal). To apply a normal map you simply need to transform it from tangent space to world space and override those inputs.