The continuation

I get an exception:
Caused by: java.lang.NullPointerException: Cannot invoke "String.indexOf(int)" because "texture" is null

Model:
 

Spoiler

public class Balaclava_Model<T extends Entity> extends EntityModel<T> {
    public static final ModelLayerLocation LAYER_LOCATION = new ModelLayerLocation(new ResourceLocation(Main.MODID, "balaclava_model"), "main");
    public final ModelPart Head;

    public Balaclava_Model(ModelPart root) {
        this.Head = root.getChild("Head");
    }

    public static LayerDefinition createBodyLayer() {
        MeshDefinition meshdefinition = new MeshDefinition();
        PartDefinition partdefinition = meshdefinition.getRoot();

        PartDefinition Head = partdefinition.addOrReplaceChild("Head", CubeListBuilder.create().texOffs(24, 0).addBox(-4.0F, -4.0F, -4.5F, 8.0F, 4.0F, 1.0F, new CubeDeformation(0.0F))
                .texOffs(24, 5).addBox(-4.0F, -8.0F, -4.5F, 8.0F, 2.0F, 1.0F, new CubeDeformation(0.0F))
                .texOffs(0, 3).addBox(3.0F, -6.0F, -4.5F, 1.0F, 2.0F, 1.0F, new CubeDeformation(0.0F))
                .texOffs(0, 0).addBox(-4.0F, -6.0F, -4.5F, 1.0F, 2.0F, 1.0F, new CubeDeformation(0.0F))
                .texOffs(31, 8).addBox(-4.0F, -8.0F, 3.1F, 8.0F, 8.0F, 1.0F, new CubeDeformation(0.0F))
                .texOffs(18, 18).addBox(-4.1F, -8.0F, -4.0F, 1.0F, 8.0F, 8.0F, new CubeDeformation(0.0F))
                .texOffs(0, 9).addBox(-4.0F, -8.1F, -4.0F, 8.0F, 1.0F, 8.0F, new CubeDeformation(0.0F))
                .texOffs(0, 0).addBox(-4.0F, -0.9F, -4.0F, 8.0F, 1.0F, 8.0F, new CubeDeformation(0.0F))
                .texOffs(0, 18).addBox(3.1F, -8.0F, -4.0F, 1.0F, 8.0F, 8.0F, new CubeDeformation(0.0F)), PartPose.offset(0.0F, 0.0F, 0.0F));

        return LayerDefinition.create(meshdefinition, 64, 64);
    }

    @Override
    public void setupAnim(T entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch) {

    }

    @Override
    public void renderToBuffer(PoseStack poseStack, VertexConsumer vertexConsumer, int packedLight, int packedOverlay, float red, float green, float blue, float alpha) {
        Head.render(poseStack, vertexConsumer, packedLight, packedOverlay, red, green, blue, alpha);
    }
}

 

Armor item:
 

Spoiler

public class Balaclava extends ArmorItem{
    private static final ArmorMaterial  armorMaterial= new ArmorMaterial(){
        @Override
        public int getDurabilityForSlot(EquipmentSlot p_40410_) {
            return 25;
        }

        @Override
        public int getDefenseForSlot(EquipmentSlot p_40411_) {
            return 3;
        }

        @Override
        public int getEnchantmentValue() {
            return 0;
        }

        @Override
        public SoundEvent getEquipSound() {
            return null;
        }

        @Override
        public Ingredient getRepairIngredient() {
            return null;
        }

        @Override
        public String getName() {
            return null;
        }

        @Override
        public float getToughness() {
            return 0;
        }

        @Override
        public float getKnockbackResistance() {
            return 0;
        }
    };
    public Balaclava(EquipmentSlot slot, Item.Properties properties) {
        super(armorMaterial,slot,properties);
    }
    @Override
    public void initializeClient(java.util.function.Consumer<net.minecraftforge.client.extensions.common.IClientItemExtensions > consumer) {
        consumer.accept(new IClientItemExtensions() {
            public HumanoidModel getHumanoidArmorModel(LivingEntity living, ItemStack stack, EquipmentSlot slot, HumanoidModel defaultModel) {
                HumanoidModel armorModel = new HumanoidModel(new ModelPart(Collections.emptyList(),
                        Map.of("head",
                                new Balaclava_Model(Minecraft.getInstance().getEntityModels().bakeLayer(Balaclava_Model.LAYER_LOCATION)).Head,
                                "hat", new ModelPart(Collections.emptyList(), Collections.emptyMap()), "body",
                                new ModelPart(Collections.emptyList(), Collections.emptyMap()), "right_arm",
                                new ModelPart(Collections.emptyList(), Collections.emptyMap()), "left_arm",
                                new ModelPart(Collections.emptyList(), Collections.emptyMap()), "right_leg",
                                new ModelPart(Collections.emptyList(), Collections.emptyMap()), "left_leg",
                                new ModelPart(Collections.emptyList(), Collections.emptyMap()))));
                armorModel.crouching = living.isShiftKeyDown();
                armorModel.riding = defaultModel.riding;
                armorModel.young = living.isBaby();
                return armorModel;
            }
        });
    }

    public String getArmorTexture(ItemStack stack, Entity entity, EquipmentSlot slot, String type) {
        return "warmod_perekur:textures/entity/balaclava.png";
    }

}

 

Registry armor item:

Spoiler

public static final RegistryObject<Item> BALACLAVA = REGISTRY.register("balaclava",
            () -> new Balaclava(EquipmentSlot.HEAD,new Item.Properties().tab(CreativeModeTab.TAB_MISC).setNoRepair()));

 

Registry model armor:

Spoiler

public static void registerLayerDefinitions(EntityRenderersEvent.RegisterLayerDefinitions event) {
		event.registerLayerDefinition(Balaclava_Model.LAYER_LOCATION, Balaclava_Model::createBodyLayer);
	}

 

I did not create the rendering, should I do it?

Edited September 7, 20223 yr by Luckydel

That is because you return null within your ArmorMaterial for `#getName`. This should be set to your material name with your modid appended (e.g. `examplemod:examplematerial`). As an additional heads up, none of the getters should return null, otherwise the game will most likely crash when executing the associated operation. You can use the vanilla enum class as a decent starting point on how to set it up properly.

ChampionAsh5357, thx 🧡   I thought there was a problem with the textures