Where is the light Chunk?

[Leonidas]

You can take a look at the full list of chunks here:

https://github.com/playcanvas/engine/tree/master/src/graphics/program-lib/chunks

To find which chunks are included in your shader you can study the complete shader generated for your material. From there you can search the relevant method in the engine repo and find the chunk name.

Here are instructions on how to find the full shader definition:

Shader Chunk to access uv1?

So, studying your generated this.material._shader.definition.fshader;, you can find the order at which your specific material is being shaded. The shader main method will look something like this: void main(void) { dDiffuseLight = vec3(0); dSpecularLight = vec3(0); dReflection = vec4(0); dSpecularity = vec3(0); #ifdef CLEARCOAT ccSpecularLight = vec3(0); ccReflection = vec4(0); ccSpecularity = vec3(0); #endif dVertexNormalW = vNormalW; dAlpha = 1.0; getViewDir(); getNormal…