shaderMaterial and 300es imports in MRT

[Evgeni_Popov]

The ShaderMaterial is not really meant to be used with lights, see

#include directives in shader code output from Node Material Editor

The shader code generated by the NME can’t be used “as is”, you must at the very least bind the uniform and sampler variables with the right values. In your example, u_world, u_viewProjection, u_Diffusecolor, etc must be bound with a value, else they are empty by default. Even the standard matrices must be, because, for eg, u_world is not the standard name used by Babylon, it is world instead. All those things (and much others) are done for you by the NodeMaterial class so you don’t have to wor…

It is in the context of trying to use the code generated by “Generate code” in the NME, but the explanations regarding the ShaderMaterial not supporting lights is what matters.

You should try to use a node material instead, if you want to support the standard lights from Babylon.

Another possibility is to use a CustomMaterial, which is a wrapper around StandardMaterial and lets you inject some custom code at some specific parts of the shader (you also have PBRCustomMaterial as a wrapper for PBRMaterial).