Load gltf files but use the Lighting material

GltfLoadAsLightingMaterialAdapter.java

package com.minikloon.jmonkeytest;

import com.jme3.material.Materials;
import com.jme3.scene.plugins.gltf.PBRMetalRoughMaterialAdapter;

import java.util.Set;

public class GltfLoadAsLightingMaterialAdapter extends PBRMetalRoughMaterialAdapter {
    private static final Set<String> IGNORED_GLTF_PARAMS = Set.of(
            "baseColorFactor",
            "roughnessFactor",
            "metallicRoughnessTexture",

            "alphaMode",
            "alphaCutoff",
            "doubleSided"
    );

    public GltfLoadAsLightingMaterialAdapter() {
        addParamMapping("baseColorTexture", "DiffuseMap");
        addParamMapping("metallicFactor", "Shininess");

        addParamMapping("emissiveTexture", "GlowMap");
        addParamMapping("emissiveFactor", "GlowColor");
    }

    @Override
    protected String getMaterialDefPath() {
        return Materials.LIGHTING;
    }

    @Override
    protected String getJmeParamName(String gltfParamName) {
        if (IGNORED_GLTF_PARAMS.contains(gltfParamName)) {
            return null;
        }

        return super.getJmeParamName(gltfParamName);
    }
}